Downey, IL Weather Forecast & Current Conditions

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Downey, IL Weather Maps

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Downey Weather Map
UTC Time: 9/15/2026, 13:10
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Downey, IL Regional Weather

Expires:202609151400;;491575
ASUS43 KLOT 151306
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 AM CDT TUE SEP 15 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>023-151400-
NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLOUDY    69  58  67 S10       30.02F TC  21           
CHICAGO-MIDWAY CLOUDY    69  58  67 S8        30.05R TC  21           
AURORA         CLOUDY    65  60  84 S6        30.04S TC  18           
JOLIET*        PTSUNNY   69  63  81 CALM      30.07R TC  21           
WAUKEGAN       LGT RAIN  64  62  93 SW8       30.00S TC  18           
DUPAGE AIRPORT LGT RAIN  65  60  84 S6        30.04R TC  18           
KANKAKEE*      MOSUNNY   69  59  70 S8        30.06R TC  21           
WHEELING       LGT RAIN  69  59  70 S9        30.03S TC  21           
ROMEOVILLE*    PTSUNNY   68  63  83 S3        30.07R TC  20           
LANSING*       PTSUNNY   68  57  68 W7        30.08R TC  20           
NORTHERLY ISL*   N/A     69  55  60 S8          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

Downey, IL

Today
Thunderstorms
78°/ 58° 26°/ 14°
100%
Wednesday
Rain Showers
72°/ 62° 22°/ 17°
50%
Thursday
Thunderstorms
75°/ 60° 24°/ 16°
50%
Friday
Rain Showers
75°/ 62° 24°/ 17°
50%
Saturday
Thunderstorms
78°/ 60° 26°/ 16°
70%
Sunday
Rain Showers
72°/ 55° 22°/ 13°
40%

Day: Showers and a slight chance of thunderstorms in the morning, then a slight chance of showers in the afternoon. A slight chance of thunderstorms late. Highs in the upper 70s. Southwest winds 10 to 15 mph. Chance of precipitation near 100 percent.

Night: Mostly cloudy. A slight chance of showers in the late evening and overnight. Lows in the upper 50s. North winds 5 to 10 mph. Chance of precipitation 20 percent.

Evanston, IL

Today
Thunderstorms
80°/ 62° 27°/ 17°
100%
Wednesday
Rain Showers
72°/ 65° 22°/ 18°
50%
Thursday
Thunderstorms
75°/ 62° 24°/ 17°
50%
Friday
Rain Showers
75°/ 65° 24°/ 18°
40%
Saturday
Thunderstorms
80°/ 62° 27°/ 17°
70%
Sunday
Rain Showers
72°/ 55° 22°/ 13°
40%

Day: Showers and a chance of thunderstorms in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs around 80. Southwest winds 10 to 15 mph. Chance of precipitation near 100 percent.

Night: Mostly cloudy. A slight chance of showers in the evening. A slight chance of thunderstorms until early morning, then a chance of showers after midnight. Lows in the lower 60s. North winds around 5 mph. Chance of precipitation 40 percent.

Kenosha, WI

This Morning
Thunderstorms
58°14°
90%
Today
Thunderstorms
78°26°
90%
Wednesday
Rain Showers
72°/ 62° 22°/ 17°
60%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
40%
Friday
Rain Showers
72°/ 62° 22°/ 17°
60%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Sunday
Thunderstorms
72°/ 55° 22°/ 13°
30%

Day: Showers and chance of thunderstorms. Southwest winds 10 to 20 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy until early morning then becoming partly cloudy. Lows in the upper 50s. North winds up to 10 mph.

Crystal Lake, IL

Today
Thunderstorms
78°/ 58° 26°/ 14°
100%
Wednesday
Rain Showers
72°/ 62° 22°/ 17°
50%
Thursday
Thunderstorms
75°/ 60° 24°/ 16°
50%
Friday
Rain Showers
75°/ 62° 24°/ 17°
60%
Saturday
Thunderstorms
78°/ 60° 26°/ 16°
70%
Sunday
Rain Showers
72°/ 55° 22°/ 13°
30%

Day: A slight chance of thunderstorms early in the morning. Showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Southwest winds 10 to 15 mph, becoming west 5 to 10 mph in the afternoon. Chance of precipitation near 100 percent.

Night: Mostly cloudy. A slight chance of showers in the late evening and overnight. Lows in the upper 50s. North winds around 5 mph. Chance of precipitation 20 percent.

Chicago, IL

Today
Thunderstorms
82°/ 65° 28°/ 18°
70%
Wednesday
Rain Showers
72°/ 68° 22°/ 20°
60%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Rain Showers
75°/ 65° 24°/ 18°
40%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
40%

Day: Mostly cloudy in the morning, then becoming partly cloudy. Showers likely in the morning. A chance of thunderstorms. A chance of showers in the afternoon. Highs in the lower 80s. Southwest winds 10 to 15 mph. Chance of precipitation 70 percent.

Night: Mostly cloudy. A chance of thunderstorms early in the evening. A chance of showers. A slight chance of thunderstorms in the late evening and overnight. Lows in the mid 60s. North winds 5 to 10 mph. Chance of precipitation 50 percent.

Aurora, IL

Today
Thunderstorms
80°/ 62° 27°/ 17°
100%
Wednesday
Rain Showers
72°/ 62° 22°/ 17°
60%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
50%
Friday
Thunderstorms
78°/ 62° 26°/ 17°
50%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
72°/ 55° 22°/ 13°
40%

Day: Showers and a chance of thunderstorms in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs around 80. Southwest winds 10 to 15 mph, becoming west in the afternoon. Chance of precipitation near 100 percent.

Night: Mostly cloudy. A slight chance of showers in the evening. A slight chance of thunderstorms. A chance of showers after midnight. Lows in the lower 60s. North winds 5 to 10 mph, becoming northeast after midnight. Chance of precipitation 50 percent.

Naperville, IL

Today
Thunderstorms
82°/ 62° 28°/ 17°
90%
Wednesday
Rain Showers
72°/ 65° 22°/ 18°
60%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
50%
Friday
Rain Showers
78°/ 65° 26°/ 18°
40%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
40%

Day: Mostly cloudy. Showers in the morning. A chance of thunderstorms. A chance of showers in the afternoon. Highs in the lower 80s. Southwest winds 10 to 15 mph, becoming west in the afternoon. Chance of precipitation 90 percent.

Night: Mostly cloudy. A chance of thunderstorms early in the evening. A chance of showers. A slight chance of thunderstorms in the late evening and overnight. Lows in the lower 60s. North winds 5 to 10 mph. Chance of precipitation 50 percent.

Racine, WI

This Morning
Thunderstorms
58°14°
90%
Today
Thunderstorms
75°24°
90%
Wednesday
Mostly Cloudy
70°/ 60° 21°/ 16°
50%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
30%
Friday
Rain Showers
72°/ 62° 22°/ 17°
70%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Sunday
Thunderstorms
70°/ 55° 21°/ 13°
30%

Day: Showers and chance of thunderstorms. Southwest winds 10 to 20 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 50s. North winds up to 10 mph.

Whitewater, WI

This Morning
Thunderstorms
55°13°
90%
Today
Thunderstorms
75°24°
90%
Wednesday
Thunderstorms
72°/ 60° 22°/ 16°
60%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
40%
Friday
Rain Showers
72°/ 62° 22°/ 17°
70%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Sunday
Thunderstorms
70°/ 52° 21°/ 11°
30%

Day: Showers and chance of thunderstorms. South winds 15 to 20 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy through around midnight then becoming partly cloudy. Lows in the mid 50s. North winds up to 5 mph.

Milwaukee, WI

This Morning
Thunderstorms
58°14°
90%
Today
Thunderstorms
75°24°
80%
Wednesday
Partly Cloudy
68°/ 60° 20°/ 16°
50%
Thursday
Rain Showers
75°/ 58° 24°/ 14°
20%
Friday
Rain Showers
72°/ 62° 22°/ 17°
70%
Saturday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Sunday
Thunderstorms
70°/ 55° 21°/ 13°
30%

Day: Showers and chance of thunderstorms. Southwest winds 15 to 20 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 50s. North winds 5 to 10 mph.

Waukesha, WI

This Morning
Thunderstorms
55°13°
90%
Today
Thunderstorms
75°24°
80%
Wednesday
Partly Cloudy
70°/ 60° 21°/ 16°
50%
Thursday
Rain Showers
75°/ 58° 24°/ 14°
20%
Friday
Rain Showers
72°/ 60° 22°/ 16°
80%
Saturday
Thunderstorms
75°/ 58° 24°/ 14°
80%
Sunday
Thunderstorms
68°/ 52° 20°/ 11°
30%

Day: Showers and chance of thunderstorms. Southwest winds 10 to 20 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy through around midnight then becoming partly cloudy. Lows in the mid 50s. North winds up to 5 mph.

Belvidere, IL

Today
Thunderstorms
78°/ 58° 26°/ 14°
100%
Wednesday
Rain Showers
72°/ 62° 22°/ 17°
50%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
50%
Friday
Thunderstorms
75°/ 62° 24°/ 17°
60%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Sunday
Rain Showers
72°/ 52° 22°/ 11°
30%

Day: Showers in the morning. A slight chance of thunderstorms. A slight chance of showers in the afternoon. Highs in the upper 70s. Southwest winds 10 to 15 mph, becoming west 5 to 10 mph in the afternoon. Chance of precipitation near 100 percent.

Night: Mostly cloudy. A slight chance of showers in the late evening and overnight. Less humid with lows in the upper 50s. North winds around 5 mph. Chance of precipitation 20 percent.

Joliet, IL

Today
Thunderstorms
82°/ 65° 28°/ 18°
70%
Wednesday
Thunderstorms
75°/ 65° 24°/ 18°
60%
Thursday
Thunderstorms
80°/ 65° 27°/ 18°
50%
Friday
Thunderstorms
78°/ 65° 26°/ 18°
40%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Rain Showers
75°/ 58° 24°/ 14°
40%

Day: Mostly cloudy in the morning, then becoming partly cloudy. Showers likely in the morning. A chance of thunderstorms. A chance of showers in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph, becoming west in the afternoon. Chance of precipitation 70 percent.

Night: Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the mid 60s. North winds 5 to 10 mph. Chance of precipitation 70 percent.

Calumet City, IL

Today
Thunderstorms
85°/ 65° 29°/ 18°
70%
Wednesday
Thunderstorms
75°/ 68° 24°/ 20°
60%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Rain Showers
78°/ 65° 26°/ 18°
40%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Rain Showers
75°/ 58° 24°/ 14°
40%

Day: Mostly cloudy in the morning, then becoming partly cloudy. A chance of showers and thunderstorms. Highs in the mid 80s. Southwest winds around 10 mph. Chance of precipitation 50 percent.

Night: A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the mid 60s. North winds around 5 mph. Chance of precipitation 70 percent.

DeKalb, IL

Today
Thunderstorms
80°/ 60° 27°/ 16°
100%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
60%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
50%
Friday
Thunderstorms
78°/ 62° 26°/ 17°
50%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
75°/ 55° 24°/ 13°
40%

Day: Showers and a chance of thunderstorms in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs around 80. Southwest winds 10 to 15 mph, becoming west in the afternoon. Chance of precipitation near 100 percent.

Night: Mostly cloudy. A slight chance of showers in the evening. A slight chance of thunderstorms. A chance of showers after midnight. Lows around 60. North winds 5 to 10 mph, becoming northeast after midnight. Chance of precipitation 50 percent.

Gary, IN

Today
Thunderstorms
85°/ 65° 29°/ 18°
70%
Wednesday
Thunderstorms
75°/ 65° 24°/ 18°
60%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
60%
Friday
Rain Showers
78°/ 62° 26°/ 17°
30%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
75°/ 55° 24°/ 13°
40%

Day: Mostly cloudy in the morning, then becoming partly cloudy. A chance of showers and thunderstorms in the morning, then a slight chance of showers and thunderstorms early in the afternoon. A chance of showers and thunderstorms late. Highs in the mid 80s. Southwest winds 5 to 10 mph. Chance of precipitation 50 percent.

Night: A chance of thunderstorms early in the evening. Showers likely. A slight chance of thunderstorms in the late evening and overnight. Humid with lows in the mid 60s. North winds around 5 mph. Chance of precipitation 70 percent.

Oswego, IL

Today
Thunderstorms
82°/ 62° 28°/ 17°
70%
Wednesday
Thunderstorms
75°/ 65° 24°/ 18°
60%
Thursday
Thunderstorms
82°/ 65° 28°/ 18°
50%
Friday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Rain Showers
75°/ 58° 24°/ 14°
40%

Day: Mostly cloudy in the morning, then becoming partly cloudy. Showers likely in the morning. A chance of thunderstorms. A chance of showers in the afternoon. Highs in the lower 80s. South winds 5 to 10 mph, becoming west in the afternoon. Chance of precipitation 70 percent.

Night: Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the lower 60s. North winds 5 to 10 mph. Chance of precipitation 70 percent.

Watertown, WI

This Morning
Thunderstorms
55°13°
90%
Today
Thunderstorms
75°24°
80%
Wednesday
Partly Cloudy
72°/ 58° 22°/ 14°
50%
Thursday
Rain Showers
75°/ 58° 24°/ 14°
20%
Friday
Rain Showers
72°/ 60° 22°/ 16°
80%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
80%
Sunday
Thunderstorms
70°/ 52° 21°/ 11°
30%

Day: Rain showers and chance of thunderstorms. South winds around 15 mph with gusts to around 30 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy through around midnight then becoming partly cloudy. Lows in the mid 50s. North winds up to 5 mph.

Janesville, WI

This Morning
Thunderstorms
55°13°
100%
Today
Thunderstorms
75°24°
90%
Wednesday
Thunderstorms
72°/ 60° 22°/ 16°
70%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
40%
Friday
Rain Showers
75°/ 62° 24°/ 17°
70%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Sunday
Thunderstorms
70°/ 52° 21°/ 11°
30%

Day: Showers and chance of thunderstorms. South winds 15 to 20 mph. Chance of precipitation near 100 percent.

Night: Mostly cloudy through around midnight then becoming partly cloudy. Lows in the mid 50s. North winds up to 5 mph.

Rockford, IL

Today
Thunderstorms
78°/ 58° 26°/ 14°
100%
Wednesday
Rain Showers
72°/ 62° 22°/ 17°
50%
Thursday
Thunderstorms
78°/ 58° 26°/ 14°
50%
Friday
Thunderstorms
75°/ 62° 24°/ 17°
70%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Sunday
Rain Showers
72°/ 52° 22°/ 11°
30%

Day: Showers and a slight chance of thunderstorms in the morning, then a slight chance of showers in the afternoon. A slight chance of thunderstorms late. Highs in the upper 70s. Southwest winds 10 to 15 mph, becoming west 5 to 10 mph in the afternoon. Chance of precipitation near 100 percent.

Night: Mostly cloudy. A slight chance of showers after midnight. Less humid with lows in the upper 50s. North winds around 5 mph. Chance of precipitation 20 percent.

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