Triangle Park, IL Weather Forecast & Current Conditions

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Triangle Park Weather Map
UTC Time: 9/20/2026, 13:26
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
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Triangle Park, IL Regional Weather

Expires:202609201400;;765731
ASUS43 KLOT 201310
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 AM CDT SUN SEP 20 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
  REPORT WEATHER SUCH AS PRECIPITATION OR FOG.


ILZ005-006-012>014-019>023-201400-
NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  LGT RAIN  65  63  93 NE17      29.95F TC  18           
CHICAGO-MIDWAY LGT RAIN  66  65  96 NE13      29.96S TC  19           
AURORA         CLOUDY    65  64  97 E14       29.94F TC  18           
JOLIET*        CLOUDY    69  69 100 NE13      29.95S TC  21           
WAUKEGAN       LGT RAIN  63  63 100 NE13G20   29.99R TC  17           
DUPAGE AIRPORT LGT RAIN  65  63  93 NE12      29.95F FOG     TC  18   
KANKAKEE*      CLOUDY    69  67  94 CALM      29.95R TC  21           
WHEELING       CLOUDY    65  64  97 NE6       29.99S TC  18           
ROMEOVILLE*    DRIZZLE   68  68 100 NE20      29.95S TC  20           
LANSING*       CLOUDY    67  66  97 NE8       29.96R TC  19           
NORTHERLY ISL*   N/A     66  64  93 N16         N/A  TC  19           
$$


SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Triangle Park, IL

Today
Thunderstorms
68°/ 55° 20°/ 13°
90%
Monday
Rain Showers
65°/ 52° 18°/ 11°
20%
Tuesday
Mostly Cloudy
62°/ 52° 17°/ 11°
0%
Wednesday
Mostly Cloudy
62°/ 52° 17°/ 11°
0%
Thursday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Cloudy
65°/ 50° 18°/ 10°
0%
Saturday
Mostly Cloudy
68°20°
0%

Day: Cloudy. Patchy fog early in the morning. Showers and a slight chance of thunderstorms in the morning. A slight chance of showers in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Breezy. Highs in the upper 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy. A slight chance of showers after midnight. Lows in the mid 50s. Northeast winds 15 to 20 mph. Chance of precipitation 20 percent.

Evanston, IL

Today
Thunderstorms
68°/ 58° 20°/ 14°
90%
Monday
Rain Showers
65°/ 55° 18°/ 13°
30%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
20%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Cloudy
68°/ 52° 20°/ 11°
0%
Saturday
Cloudy
70°21°
0%

Day: Cloudy. Patchy fog early in the morning. Showers and a slight chance of thunderstorms in the morning. A slight chance of thunderstorms early in the afternoon. A chance of showers in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Breezy. Highs in the upper 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation 90 percent.

Night: Cloudy. A slight chance of showers after midnight. A chance of showers late. Lows in the upper 50s. Northeast winds 15 to 20 mph with gusts up to 25 mph, becoming east 10 to 15 mph after midnight. Chance of precipitation 30 percent.

Chicago, IL

Today
Thunderstorms
68°/ 58° 20°/ 14°
100%
Monday
Rain Showers
65°/ 55° 18°/ 13°
30%
Tuesday
Rain Showers
62°/ 55° 17°/ 13°
20%
Wednesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Friday
Cloudy
68°/ 55° 20°/ 13°
0%
Saturday
Cloudy
72°22°
0%

Day: Patchy fog early in the morning. A slight chance of thunderstorms in the morning. Showers. A slight chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Breezy. Highs in the upper 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation near 100 percent.

Night: Cloudy. A slight chance of showers after midnight. A chance of showers late. Lows in the upper 50s. Northeast winds 15 to 20 mph with gusts up to 25 mph, becoming east 10 to 15 mph after midnight. Chance of precipitation 30 percent.

Crystal Lake, IL

Today
Thunderstorms
65°/ 55° 18°/ 13°
70%
Monday
Rain Showers
62°/ 52° 17°/ 11°
20%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Mostly Cloudy
62°/ 48° 17°/
0%
Thursday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
68°20°
0%

Day: Cloudy. Patchy fog early in the morning. Showers likely and a slight chance of thunderstorms in the morning. A chance of showers early in the afternoon, then a slight chance of showers late. Some thunderstorms may produce heavy rainfall in the morning. Breezy. Near steady temperature in the mid 60s. Northeast winds 10 to 15 mph, increasing to 15 to 20 mph in the afternoon. Gusts up to 30 mph. Chance of precipitation 70 percent.

Night: Cloudy. A slight chance of showers in the late evening and overnight. Lows in the mid 50s. Northeast winds 10 to 15 mph. Gusts up to 25 mph in the evening. Chance of precipitation 20 percent.

Naperville, IL

Today
Thunderstorms
68°/ 58° 20°/ 14°
100%
Monday
Rain Showers
65°/ 55° 18°/ 13°
30%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
20%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Saturday
Cloudy
72°22°
0%

Day: Patchy fog early in the morning. A slight chance of thunderstorms in the morning. Showers. A slight chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Breezy. Near steady temperature in the upper 60s. Northeast winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation near 100 percent.

Night: Cloudy. A slight chance of showers in the late evening and early morning. A chance of showers late. Lows in the upper 50s. Northeast winds 10 to 15 mph. Gusts up to 25 mph in the evening. Chance of precipitation 30 percent.

Kenosha, WI

This Morning
Thunderstorms
55°13°
100%
Today
Thunderstorms
65°18°
70%
Monday
Rain Showers
62°/ 52° 17°/ 11°
30%
Tuesday
Partly Cloudy
62°/ 50° 17°/ 10°
0%
Wednesday
Partly Cloudy
62°/ 50° 17°/ 10°
0%
Thursday
Partly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Partly Cloudy
65°/ 48° 18°/
0%
Saturday
Partly Cloudy
68°20°
0%

Day: Showers and chance of thunderstorms. Patchy fog. Some thunderstorms may produce heavy rainfall. Northeast winds 5 to 10 mph. Chance of precipitation near 100 percent.

Night: Mostly cloudy. A 20 percent chance of light rain showers early in the morning. Lows in the mid 50s. Northeast winds 10 to 15 mph.

Aurora, IL

Today
Thunderstorms
65°/ 58° 18°/ 14°
100%
Monday
Rain Showers
65°/ 52° 18°/ 11°
30%
Tuesday
Rain Showers
62°/ 50° 17°/ 10°
20%
Wednesday
Mostly Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
70°21°
0%

Day: Patchy fog early in the morning. Showers and a slight chance of thunderstorms in the morning. A slight chance of thunderstorms early in the afternoon. A chance of showers in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Breezy. Near steady temperature in the mid 60s. Northeast winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation near 100 percent.

Night: Cloudy. A slight chance of showers in the late evening and early morning. A chance of showers late. Lows in the upper 50s. Northeast winds 10 to 15 mph. Gusts up to 25 mph in the evening. Chance of precipitation 30 percent.

Whitewater, WI

This Morning
Thunderstorms
55°13°
100%
Today
Thunderstorms
62°17°
60%
Monday
Rain Showers
62°/ 50° 17°/ 10°
30%
Tuesday
Partly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
62°/ 48° 17°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Partly Cloudy
65°/ 48° 18°/
0%
Saturday
Partly Cloudy
68°20°
0%

Day: Showers and chance of thunderstorms. Areas of fog. Some thunderstorms may produce heavy rainfall. Northeast winds 5 to 10 mph. Chance of precipitation near 100 percent.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds 10 to 15 mph.

Racine, WI

This Morning
Thunderstorms
55°13°
100%
Today
Rain Showers
65°18°
50%
Monday
Rain Showers
62°/ 52° 17°/ 11°
20%
Tuesday
Partly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
62°/ 50° 17°/ 10°
0%
Thursday
Partly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Partly Cloudy
65°/ 48° 18°/
0%
Saturday
Partly Cloudy
68°20°
0%

Day: Showers and chance of thunderstorms. Patchy fog. Some thunderstorms may produce heavy rainfall. Northeast winds 5 to 15 mph. Chance of precipitation near 100 percent.

Night: Mostly cloudy. A 20 percent chance of light rain showers early in the morning. Lows in the mid 50s. Northeast winds 10 to 20 mph.

Joliet, IL

Today
Thunderstorms
68°/ 58° 20°/ 14°
100%
Monday
Rain Showers
65°/ 55° 18°/ 13°
30%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
20%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Cloudy
68°/ 52° 20°/ 11°
0%
Saturday
Cloudy
72°22°
0%

Day: Patchy fog early in the morning. A slight chance of thunderstorms in the morning. Showers. A slight chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Breezy. Near steady temperature in the upper 60s. Northeast winds 10 to 15 mph. Gusts up to 30 mph in the afternoon. Chance of precipitation near 100 percent.

Night: Cloudy. A slight chance of showers in the late evening and early morning. A chance of showers late. Lows in the upper 50s. Northeast winds 10 to 15 mph. Gusts up to 25 mph in the evening. Chance of precipitation 30 percent.

Calumet City, IL

Today
Thunderstorms
68°/ 58° 20°/ 14°
100%
Monday
Rain Showers
65°/ 55° 18°/ 13°
30%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
20%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Friday
Cloudy
68°/ 52° 20°/ 11°
0%
Saturday
Cloudy
72°22°
0%

Day: Patchy fog early in the morning. A slight chance of thunderstorms in the morning. Showers. A slight chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Breezy. Near steady temperature in the upper 60s. Northeast winds 10 to 15 mph. Gusts up to 30 mph in the afternoon. Chance of precipitation near 100 percent.

Night: Cloudy. A slight chance of showers after midnight. A chance of showers late. Lows in the upper 50s. Northeast winds 10 to 15 mph. Gusts up to 25 mph in the evening. Chance of precipitation 30 percent.

Gary, IN

Today
Thunderstorms
72°/ 55° 22°/ 13°
100%
Monday
Rain Showers
65°/ 52° 18°/ 11°
30%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
20%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Cloudy
68°/ 50° 20°/ 10°
0%
Saturday
Cloudy
72°22°
0%

Day: Patchy fog early in the morning. A slight chance of thunderstorms in the morning. Showers. A slight chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Highs in the lower 70s. Northeast winds 5 to 10 mph, increasing to 10 to 15 mph with gusts up to 25 mph in the afternoon. Chance of precipitation near 100 percent.

Night: Cloudy. A slight chance of showers early in the evening. A slight chance of showers after midnight, then a chance of showers late. Lows in the mid 50s. Northeast winds 10 to 15 mph. Gusts up to 25 mph in the evening. Chance of precipitation 30 percent.

Milwaukee, WI

This Morning
Thunderstorms
55°13°
90%
Today
Rain Showers
62°17°
40%
Monday
Rain Showers
62°/ 52° 17°/ 11°
20%
Tuesday
Partly Cloudy
62°/ 52° 17°/ 11°
0%
Wednesday
Partly Cloudy
62°/ 52° 17°/ 11°
0%
Thursday
Partly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Partly Cloudy
65°/ 50° 18°/ 10°
0%
Saturday
Partly Cloudy
68°20°
0%

Day: Light showers and chance of thunderstorms. Patchy fog. Some thunderstorms may produce heavy rainfall. Northeast winds 5 to 15 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds 10 to 20 mph.

DeKalb, IL

Today
Thunderstorms
65°/ 55° 18°/ 13°
100%
Monday
Rain Showers
65°/ 52° 18°/ 11°
30%
Tuesday
Rain Showers
62°/ 48° 17°/
20%
Wednesday
Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
72°22°
0%

Day: Patchy fog early in the morning. Showers and a slight chance of thunderstorms in the morning. A chance of showers and a slight chance of thunderstorms early in the afternoon, then a slight chance of showers late. Some thunderstorms may produce heavy rainfall in the morning. Breezy. Near steady temperature in the mid 60s. Northeast winds 10 to 15 mph, increasing to 15 to 20 mph in the afternoon. Gusts up to 30 mph. Chance of precipitation near 100 percent.

Night: Cloudy. A slight chance of showers in the late evening and early morning. A chance of showers late. Lows in the mid 50s. Northeast winds 10 to 15 mph. Gusts up to 25 mph in the evening. Chance of precipitation 30 percent.

Oswego, IL

Today
Thunderstorms
68°/ 58° 20°/ 14°
100%
Monday
Rain Showers
65°/ 55° 18°/ 13°
30%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
20%
Wednesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Cloudy
68°/ 50° 20°/ 10°
0%
Saturday
Cloudy
72°22°
0%

Day: Patchy fog early in the morning. A slight chance of thunderstorms in the morning. Showers. A slight chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Breezy. Near steady temperature in the upper 60s. Northeast winds 10 to 15 mph, increasing to 15 to 20 mph in the afternoon. Gusts up to 30 mph. Chance of precipitation near 100 percent.

Night: Cloudy. A slight chance of showers in the late evening and early morning. A chance of showers late. Lows in the upper 50s. Northeast winds 10 to 15 mph. Gusts up to 25 mph in the evening. Chance of precipitation 30 percent.

Belvidere, IL

Today
Thunderstorms
65°/ 55° 18°/ 13°
70%
Monday
Rain Showers
62°/ 50° 17°/ 10°
30%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
65°/ 48° 18°/
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
68°20°
0%

Day: Cloudy. Patchy fog early in the morning. Showers likely and a slight chance of thunderstorms in the morning. A chance of showers early in the afternoon, then a slight chance of showers late. Some thunderstorms may produce heavy rainfall in the morning. Breezy. Near steady temperature in the mid 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation 70 percent.

Night: Cloudy. A slight chance of showers in the late evening and overnight. Lows in the mid 50s. Northeast winds 10 to 15 mph. Gusts up to 25 mph in the evening. Chance of precipitation 20 percent.

Waukesha, WI

This Morning
Thunderstorms
55°13°
90%
Today
Rain Showers
65°18°
40%
Monday
Rain Showers
62°/ 50° 17°/ 10°
20%
Tuesday
Partly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
62°/ 48° 17°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Partly Cloudy
65°/ 48° 18°/
0%
Saturday
Partly Cloudy
68°20°
0%

Day: Light showers and chance of thunderstorms. Patchy fog. Some thunderstorms may produce heavy rainfall. Northeast winds 5 to 15 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds 10 to 20 mph.

Portage, IN

Today
Thunderstorms
72°/ 55° 22°/ 13°
100%
Monday
Rain Showers
65°/ 52° 18°/ 11°
30%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
20%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Cloudy
68°/ 50° 20°/ 10°
0%
Saturday
Cloudy
72°22°
0%

Day: Patchy fog early in the morning. A slight chance of thunderstorms in the morning. Showers. A slight chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Highs in the lower 70s. Northeast winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. Chance of precipitation near 100 percent.

Night: Mostly cloudy. A slight chance of showers early in the evening. A slight chance of showers after midnight, then a chance of showers late. Lows in the mid 50s. Northeast winds 10 to 15 mph. Chance of precipitation 30 percent.

Crete, IL

Today
Thunderstorms
72°/ 55° 22°/ 13°
100%
Monday
Rain Showers
65°/ 52° 18°/ 11°
30%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
20%
Wednesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Thursday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Cloudy
68°/ 50° 20°/ 10°
0%
Saturday
Cloudy
72°22°
0%

Day: Patchy fog early in the morning. A chance of thunderstorms in the morning. Showers. A slight chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Highs in the lower 70s. Northeast winds 5 to 10 mph, increasing to 10 to 15 mph with gusts up to 25 mph in the afternoon. Chance of precipitation near 100 percent.

Night: Cloudy. A slight chance of showers early in the evening. A slight chance of showers after midnight, then a chance of showers late. Lows in the mid 50s. Northeast winds 10 to 15 mph. Gusts up to 25 mph in the evening. Chance of precipitation 30 percent.

Janesville, WI

This Morning
Thunderstorms
55°13°
100%
Today
Thunderstorms
62°17°
50%
Monday
Rain Showers
62°/ 48° 17°/
40%
Tuesday
Partly Cloudy
62°/ 45° 17°/
0%
Wednesday
Partly Cloudy
62°/ 48° 17°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Partly Cloudy
65°/ 48° 18°/
0%
Saturday
Partly Cloudy
68°20°
0%

Day: Showers and chance of thunderstorms. Patchy fog. Some thunderstorms may produce heavy rainfall. Northeast winds 10 to 15 mph. Chance of precipitation near 100 percent.

Night: Mostly cloudy. A 20 percent chance of light rain showers after midnight. Lows in the mid 50s. Northeast winds 10 to 20 mph.

Names listed above may include county names.

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