Sun Lake, IL Weather Forecast & Current Conditions

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Sun Lake Weather Map
UTC Time: 9/18/2026, 22:19
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Sun Lake, IL Regional Weather

Expires:202609182300;;678180
ASUS43 KLOT 182210
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 PM CDT FRI SEP 18 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>023-182300-
NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLOUDY    71  57  61 E12       30.14F TC  22           
CHICAGO-MIDWAY CLOUDY    72  56  57 E14       30.14F TC  22           
AURORA         PTSUNNY   71  61  70 E12       30.13S TC  22           
JOLIET*        PTSUNNY   75  68  78 SE7       30.13S TC  24           
WAUKEGAN       CLOUDY    68  60  75 NE9       30.18R TC  20           
DUPAGE AIRPORT CLOUDY    70  59  68 E9        30.14F TC  21           
KANKAKEE*      PTSUNNY   75  66  73 E12       30.12F TC  24           
WHEELING       CLOUDY    69  59  70 E9        30.17S TC  21           
LANSING*       PTSUNNY   73  59  62 E7        30.15F TC  23           
NORTHERLY ISL*   N/A     69  61  75 NE7         N/A  TC  21           
$$


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

Sun Lake, IL

Late Afternoon
Rain Showers
62°17°
70%
Saturday
Thunderstorms
75°/ 62° 24°/ 17°
100%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
70%
Monday
Rain Showers
65°/ 52° 18°/ 11°
40%
Tuesday
Mostly Cloudy
62°/ 52° 17°/ 11°
0%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
68°20°
0%

Day: Mostly cloudy. A chance of showers. Temperatures in the upper 60s. East winds 10 to 15 mph. Chance of precipitation 40 percent.

Night: Mostly cloudy. A slight chance of showers in the evening, then a chance of showers and thunderstorms after midnight. Showers and thunderstorms likely late. Lows in the lower 60s. East winds 10 to 15 mph. Chance of precipitation 70 percent.

Kenosha, WI

Today
Rain Showers
68°/ 60° 20°/ 16°
90%
Saturday
Thunderstorms
72°/ 60° 22°/ 16°
90%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
60%
Monday
Rain Showers
65°/ 50° 18°/ 10°
30%
Tuesday
Rain Showers
62°/ 50° 17°/ 10°
20%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Partly Cloudy
65°18°
0%

Day: Mostly cloudy with a 40 percent chance of light showers. Near steady temperature in the upper 60s. East winds 10 to 15 mph.

Night: Cloudy. Chance of light showers through around midnight, then showers likely and chance of thunderstorms after midnight. Showers and chance of thunderstorms early in the morning. Some thunderstorms may produce heavy rainfall after midnight. Locally heavy rainfall possible early in the morning. Lows around 60. East winds 10 to 15 mph. Chance of precipitation 90 percent.

Crystal Lake, IL

Late Afternoon
Rain Showers
62°17°
70%
Saturday
Thunderstorms
75°/ 62° 24°/ 17°
100%
Sunday
Thunderstorms
68°/ 55° 20°/ 13°
70%
Monday
Rain Showers
62°/ 50° 17°/ 10°
40%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Cloudy
68°20°
0%

Day: Mostly cloudy. A chance of showers. Temperatures in the upper 60s. East winds 10 to 15 mph. Chance of precipitation 40 percent.

Night: Mostly cloudy. A slight chance of showers in the evening, then a chance of showers and thunderstorms after midnight. Showers and thunderstorms likely late. Locally heavy rainfall possible late. Lows in the lower 60s. East winds around 10 mph. Chance of precipitation 70 percent.

Whitewater, WI

Today
Rain Showers
68°/ 60° 20°/ 16°
100%
Saturday
Thunderstorms
72°/ 60° 22°/ 16°
90%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
60%
Monday
Rain Showers
62°/ 48° 17°/
30%
Tuesday
Rain Showers
62°/ 48° 17°/
20%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Partly Cloudy
65°18°
0%

Day: Mostly cloudy with a 40 percent chance of light showers. Near steady temperature in the upper 60s. East winds 10 to 15 mph.

Night: Chance of light showers and slight chance of thunderstorms through around midnight, then showers and chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Locally heavy rainfall possible after midnight. Lows around 60. East winds 10 to 15 mph. Chance of precipitation near 100 percent.

Racine, WI

Today
Rain Showers
68°/ 60° 20°/ 16°
90%
Saturday
Thunderstorms
72°/ 60° 22°/ 16°
90%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
60%
Monday
Rain Showers
62°/ 50° 17°/ 10°
20%
Tuesday
Rain Showers
62°/ 50° 17°/ 10°
20%
Wednesday
Mostly Cloudy
62°/ 50° 17°/ 10°
0%
Thursday
Partly Cloudy
65°18°
0%

Day: Mostly cloudy with a 40 percent chance of light showers. Near steady temperature in the upper 60s. East winds 10 to 15 mph.

Night: Cloudy. Chance of light showers through around midnight, then showers and chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Locally heavy rainfall possible after midnight. Lows around 60. East winds 10 to 15 mph. Chance of precipitation 90 percent.

Evanston, IL

Late Afternoon
Rain Showers
62°17°
60%
Saturday
Thunderstorms
75°/ 62° 24°/ 17°
90%
Sunday
Thunderstorms
68°/ 55° 20°/ 13°
70%
Monday
Rain Showers
65°/ 52° 18°/ 11°
50%
Tuesday
Mostly Cloudy
62°/ 52° 17°/ 11°
0%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Cloudy
70°21°
0%

Day: Mostly cloudy. A chance of showers. Temperatures around 70. East winds 10 to 15 mph. Chance of precipitation 50 percent.

Night: Mostly cloudy. Isolated showers early in the evening. A chance of showers and thunderstorms after midnight, then showers and thunderstorms likely late. Lows in the lower 60s. East winds 10 to 15 mph. Chance of precipitation 60 percent.

Aurora, IL

Late Afternoon
Rain Showers
62°17°
50%
Saturday
Thunderstorms
78°/ 65° 26°/ 18°
90%
Sunday
Thunderstorms
68°/ 55° 20°/ 13°
70%
Monday
Rain Showers
65°/ 52° 18°/ 11°
50%
Tuesday
Mostly Cloudy
62°/ 50° 17°/ 10°
0%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Cloudy
70°21°
0%

Day: Mostly cloudy. A chance of showers. Temperatures around 70. East winds 10 to 15 mph. Chance of precipitation 50 percent.

Night: Mostly cloudy. A slight chance of showers early in the evening. A chance of showers and thunderstorms after midnight. Lows in the lower 60s. East winds around 10 mph. Chance of precipitation 50 percent.

Naperville, IL

Late Afternoon
Rain Showers
62°17°
50%
Saturday
Thunderstorms
78°/ 65° 26°/ 18°
90%
Sunday
Thunderstorms
68°/ 55° 20°/ 13°
70%
Monday
Rain Showers
65°/ 52° 18°/ 11°
50%
Tuesday
Mostly Cloudy
62°/ 52° 17°/ 11°
0%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Mostly Cloudy
70°21°
0%

Day: Mostly cloudy. A chance of showers. Temperatures around 70. East winds 10 to 15 mph. Chance of precipitation 50 percent.

Night: Mostly cloudy. A slight chance of showers early in the evening. A chance of showers and thunderstorms after midnight. Lows in the lower 60s. East winds around 10 mph. Chance of precipitation 50 percent.

Milwaukee, WI

Today
Rain Showers
68°/ 58° 20°/ 14°
100%
Saturday
Thunderstorms
72°/ 58° 22°/ 14°
90%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Rain Showers
62°/ 52° 17°/ 11°
20%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
20%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Partly Cloudy
65°18°
0%

Day: Mostly cloudy with a 40 percent chance of light showers. Near steady temperature in the upper 60s. East winds 10 to 15 mph.

Night: Chance of light rain showers through around midnight, then rain showers and chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Locally heavy rainfall possible after midnight. Lows in the upper 50s. East winds 10 to 15 mph. Chance of precipitation near 100 percent.

Waukesha, WI

Today
Rain Showers
65°/ 58° 18°/ 14°
100%
Saturday
Thunderstorms
72°/ 58° 22°/ 14°
90%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
50%
Monday
Rain Showers
62°/ 48° 17°/
20%
Tuesday
Rain Showers
62°/ 48° 17°/
20%
Wednesday
Partly Cloudy
62°/ 50° 17°/ 10°
0%
Thursday
Partly Cloudy
65°18°
0%

Day: Mostly cloudy with a 40 percent chance of light showers. Near steady temperature in the mid 60s. East winds 10 to 15 mph.

Night: Chance of light showers and slight chance of thunderstorms through around midnight, then showers and chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Locally heavy rainfall possible after midnight. Lows in the upper 50s. East winds 10 to 15 mph. Chance of precipitation near 100 percent.

Chicago, IL

Late Afternoon
Rain Showers
62°17°
50%
Saturday
Thunderstorms
78°/ 65° 26°/ 18°
90%
Sunday
Thunderstorms
68°/ 58° 20°/ 14°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
50%
Tuesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Wednesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Mostly Cloudy
68°/ 58° 20°/ 14°
0%
Friday
Mostly Cloudy
70°21°
0%

Day: Mostly cloudy. A chance of showers. Temperatures around 70. East winds 10 to 15 mph. Chance of precipitation 50 percent.

Night: Mostly cloudy. A slight chance of showers early in the evening. A slight chance of showers and thunderstorms after midnight, then a chance of showers and thunderstorms late. Lows in the lower 60s. East winds 10 to 15 mph. Chance of precipitation 50 percent.

Belvidere, IL

Late Afternoon
Rain Showers
62°17°
70%
Saturday
Thunderstorms
75°/ 62° 24°/ 17°
100%
Sunday
Thunderstorms
68°/ 55° 20°/ 13°
70%
Monday
Rain Showers
62°/ 48° 17°/
40%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Mostly Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Friday
Mostly Cloudy
68°20°
0%

Day: Mostly cloudy. A chance of showers. Temperatures around 70. East winds 10 to 15 mph. Chance of precipitation 40 percent.

Night: Mostly cloudy. A slight chance of showers in the evening, then a chance of showers and thunderstorms after midnight. Showers and thunderstorms likely late. Locally heavy rainfall possible late. Lows in the lower 60s. East winds 10 to 15 mph. Chance of precipitation 70 percent.

DeKalb, IL

Late Afternoon
Rain Showers
62°17°
50%
Saturday
Thunderstorms
78°/ 62° 26°/ 17°
90%
Sunday
Thunderstorms
68°/ 55° 20°/ 13°
70%
Monday
Rain Showers
65°/ 52° 18°/ 11°
50%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Cloudy
72°22°
0%

Day: Mostly cloudy. A chance of showers. Temperatures in the lower 70s. East winds 10 to 15 mph. Chance of precipitation 50 percent.

Night: Mostly cloudy. A slight chance of showers early in the evening. A chance of showers and thunderstorms after midnight. Lows in the lower 60s. East winds around 10 mph. Chance of precipitation 50 percent.

Watertown, WI

Today
Rain Showers
68°/ 60° 20°/ 16°
100%
Saturday
Thunderstorms
72°/ 58° 22°/ 14°
90%
Sunday
Rain Showers
68°/ 52° 20°/ 11°
50%
Monday
Rain Showers
62°/ 48° 17°/
20%
Tuesday
Partly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Partly Cloudy
68°20°
0%

Day: Mostly cloudy with a 40 percent chance of light showers. Near steady temperature in the upper 60s. East winds 10 to 15 mph.

Night: Chance of light showers and slight chance of thunderstorms through around midnight, then showers and chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Locally heavy rainfall possible after midnight. Lows around 60. East winds 10 to 15 mph. Chance of precipitation near 100 percent.

Janesville, WI

Today
Rain Showers
68°/ 60° 20°/ 16°
90%
Saturday
Thunderstorms
72°/ 60° 22°/ 16°
90%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
60%
Monday
Rain Showers
62°/ 48° 17°/
40%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Partly Cloudy
65°18°
0%

Day: Mostly cloudy with a 40 percent chance of light showers. Near steady temperature in the upper 60s. East winds 10 to 15 mph.

Night: Cloudy. Chance of light showers and slight chance of thunderstorms through around midnight, then showers and chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Locally heavy rainfall possible after midnight. Lows around 60. East winds 10 to 15 mph. Chance of precipitation 90 percent.

Rockford, IL

Late Afternoon
Rain Showers
62°17°
70%
Saturday
Thunderstorms
75°/ 62° 24°/ 17°
100%
Sunday
Thunderstorms
68°/ 52° 20°/ 11°
70%
Monday
Rain Showers
62°/ 48° 17°/
40%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Mostly Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Friday
Cloudy
68°20°
0%

Day: Mostly cloudy. A chance of showers. Temperatures around 70. East winds 10 to 15 mph. Chance of precipitation 40 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. Locally heavy rainfall possible late. Lows in the lower 60s. East winds 10 to 15 mph. Chance of precipitation 70 percent.

Joliet, IL

Late Afternoon
Rain Showers
62°17°
60%
Saturday
Thunderstorms
78°/ 65° 26°/ 18°
80%
Sunday
Thunderstorms
70°/ 55° 21°/ 13°
70%
Monday
Rain Showers
65°/ 52° 18°/ 11°
60%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
30%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Cloudy
72°22°
0%

Day: Showers likely. Temperatures in the lower 70s. East winds 10 to 15 mph. Chance of precipitation 60 percent.

Night: Mostly cloudy. A slight chance of showers early in the evening. A slight chance of showers and thunderstorms after midnight, then a chance of showers and thunderstorms late. Lows in the lower 60s. East winds around 10 mph. Chance of precipitation 40 percent.

Oswego, IL

Late Afternoon
Rain Showers
65°18°
60%
Saturday
Thunderstorms
80°/ 65° 27°/ 18°
80%
Sunday
Thunderstorms
70°/ 58° 21°/ 14°
70%
Monday
Rain Showers
65°/ 52° 18°/ 11°
60%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
30%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Cloudy
72°22°
0%

Day: Showers likely. Temperatures in the lower 70s. East winds 10 to 15 mph. Chance of precipitation 60 percent.

Night: Mostly cloudy. A slight chance of showers early in the evening. A slight chance of showers and thunderstorms after midnight, then a chance of showers and thunderstorms late. Lows in the mid 60s. East winds around 10 mph. Chance of precipitation 40 percent.

Calumet City, IL

Late Afternoon
Rain Showers
62°17°
50%
Saturday
Thunderstorms
78°/ 65° 26°/ 18°
80%
Sunday
Thunderstorms
68°/ 55° 20°/ 13°
70%
Monday
Rain Showers
65°/ 52° 18°/ 11°
60%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Wednesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Mostly Cloudy
70°21°
0%

Day: Mostly cloudy. A chance of showers. Temperatures in the lower 70s. East winds 10 to 15 mph. Chance of precipitation 50 percent.

Night: Mostly cloudy. A slight chance of showers early in the evening. A slight chance of showers and thunderstorms after midnight, then a chance of showers and thunderstorms late. Lows in the lower 60s. East winds around 10 mph. Chance of precipitation 40 percent.

Rochelle, IL

Late Afternoon
Thunderstorms
62°17°
50%
Saturday
Thunderstorms
78°/ 62° 26°/ 17°
90%
Sunday
Thunderstorms
68°/ 52° 20°/ 11°
70%
Monday
Rain Showers
65°/ 48° 18°/
50%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Mostly Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Friday
Cloudy
70°21°
0%

Day: Mostly cloudy. A chance of showers and a slight chance of thunderstorms. Temperatures in the lower 70s. East winds 10 to 15 mph. Chance of precipitation 50 percent.

Night: Mostly cloudy. A slight chance of showers in the evening, then a chance of showers and thunderstorms after midnight. Lows in the lower 60s. East winds 10 to 15 mph. Chance of precipitation 50 percent.

Names listed above may include county names.

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