Oswego, IL Weather Forecast & Current Conditions

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Oswego Weather Map
UTC Time: 11/12/2026, 10:32
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Oswego, IL Regional Weather

Expires:202611121100;;688167
ASUS43 KLOT 121010
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 AM CST THU NOV 12 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>023-121100-
NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLOUDY    44  39  82 N14       29.82S TC   7           
CHICAGO-MIDWAY MOCLDY    45  41  86 N15       29.82R TC   7           
AURORA         CLOUDY    43  40  89 N9        29.84S TC   6           
JOLIET*        PTCLDY    44  43  97 N6        29.84S TC   6           
WAUKEGAN       CLOUDY    43  37  79 N15G21    29.84R TC   6           
DUPAGE AIRPORT CLOUDY    44  39  82 N13       29.84S TC   7           
KANKAKEE*      CLEAR     38  36  94 W5        29.83S WCI  34 TC   3   
WHEELING       CLOUDY    44  40  85 N9        29.85R TC   7           
ROMEOVILLE*    CLOUDY    45  45 100 NW8       29.84S TC   7           
LANSING*       MOCLDY    44  40  86 NW7       29.81S TC   7           
NORTHERLY ISL*   N/A     47  41  80 NW12        N/A  TC   8           
$$


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

Oswego, IL

Tonight
Rain Showers
30°-1°
20%
Thursday
Rain Showers
42°6°
20%
Friday
Snow Showers
42°/ 28° 6°/ -2°
30%
Saturday
Sunny
45°/ 25° 7°/ -4°
0%
Sunday
Sunny
48°/ 28° 9°/ -2°
0%
Monday
Sunny
48°/ 28° 9°/ -2°
0%
Tuesday
Sunny
52°/ 28° 11°/ -2°
0%
Wednesday
Sunny
55°13°
0%

Night: Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of rain showers in the evening. A slight chance of snow showers late. Lows around 30. North winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 20 percent.

Aurora, IL

Tonight
Rain Showers
38°3°
20%
Thursday
Rain Showers
42°/ 30° 6°/ -1°
20%
Friday
Snow Showers
42°/ 25° 6°/ -4°
20%
Saturday
Sunny
45°/ 25° 7°/ -4°
0%
Sunday
Sunny
48°/ 28° 9°/ -2°
0%
Monday
Sunny
48°/ 28° 9°/ -2°
0%
Tuesday
Sunny
52°/ 28° 11°/ -2°
0%
Wednesday
Sunny
55°13°
0%

Night: Mostly cloudy. A slight chance of showers. Lows in the upper 30s. North winds 10 to 15 mph. Chance of precipitation 20 percent.

Joliet, IL

Tonight
Rain Showers
32°0°
50%
Thursday
Rain Showers
42°6°
50%
Friday
Snow Showers
42°/ 28° 6°/ -2°
50%
Saturday
Sunny
45°/ 28° 7°/ -2°
0%
Sunday
Sunny
48°/ 28° 9°/ -2°
0%
Monday
Sunny
48°/ 28° 9°/ -2°
0%
Tuesday
Sunny
52°/ 28° 11°/ -2°
0%
Wednesday
Sunny
55°13°
0%

Night: Mostly cloudy. A chance of rain showers until early morning. A chance of snow showers after midnight. Little or no snow accumulation. Blustery with lows in the lower 30s. North winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 50 percent.

Naperville, IL

Tonight
Rain Showers
32°0°
50%
Thursday
Rain Showers
42°6°
50%
Friday
Snow Showers
42°/ 28° 6°/ -2°
50%
Saturday
Sunny
45°/ 28° 7°/ -2°
0%
Sunday
Sunny
48°/ 28° 9°/ -2°
0%
Monday
Sunny
48°/ 30° 9°/ -1°
0%
Tuesday
Sunny
52°/ 30° 11°/ -1°
0%
Wednesday
Sunny
55°13°
0%

Night: Mostly cloudy. A chance of rain showers until early morning. A slight chance of snow showers after midnight, then a chance of snow showers late. Little or no snow accumulation. Blustery with lows in the lower 30s. North winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 50 percent.

DeKalb, IL

Tonight
Rain Showers
28°-2°
N/A
Thursday
Rain Showers
42°6°
20%
Friday
Snow Showers
42°/ 25° 6°/ -4°
20%
Saturday
Sunny
45°/ 25° 7°/ -4°
0%
Sunday
Sunny
48°/ 28° 9°/ -2°
0%
Monday
Sunny
48°/ 28° 9°/ -2°
0%
Tuesday
Sunny
52°/ 28° 11°/ -2°
0%
Wednesday
Sunny
55°13°
0%

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 20s. North winds 10 to 15 mph with gusts up to 25 mph.

Ottawa, IL

Tonight
Rain Showers
30°-1°
N/A
Thursday
Rain Showers
42°6°
20%
Friday
Snow Showers
42°/ 25° 6°/ -4°
20%
Saturday
Sunny
45°/ 25° 7°/ -4°
0%
Sunday
Sunny
48°/ 25° 9°/ -4°
0%
Monday
Sunny
50°/ 28° 10°/ -2°
0%
Tuesday
Sunny
52°/ 28° 11°/ -2°
0%
Wednesday
Sunny
55°13°
0%

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows around 30. North winds 10 to 15 mph with gusts up to 25 mph.

Morris, IL

Tonight
Mostly Cloudy
32°0°
20%
Thursday
Rain Showers
42°6°
20%
Friday
Snow Showers
42°/ 25° 6°/ -4°
40%
Saturday
Sunny
45°/ 25° 7°/ -4°
0%
Sunday
Sunny
48°/ 25° 9°/ -4°
0%
Monday
Sunny
52°/ 28° 11°/ -2°
0%
Tuesday
Sunny
55°/ 28° 13°/ -2°
0%
Wednesday
Sunny
58°14°
0%

Night: Mostly cloudy. A slight chance of rain showers until early morning. A slight chance of snow showers after midnight. Blustery with lows in the lower 30s. North winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 20 percent.

Calumet City, IL

Tonight
Rain Showers
32°0°
90%
Thursday
Rain Showers
90%
Friday
Snow Showers
42°/ 30° 6°/ -1°
90%
Saturday
Sunny
45°/ 30° 7°/ -1°
0%
Sunday
Sunny
48°/ 30° 9°/ -1°
0%
Monday
Sunny
48°/ 30° 9°/ -1°
0%
Tuesday
Sunny
52°/ 32° 11°/ 0°
0%
Wednesday
Sunny
55°13°
0%

Night: Rain showers. Snow showers in the late evening and overnight. Snow accumulation around an inch. Breezy with lows in the lower 30s. North winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 90 percent.

Channahon, IL

Tonight
Mostly Cloudy
32°0°
50%
Thursday
Rain Showers
42°6°
50%
Friday
Snow Showers
42°/ 28° 6°/ -2°
50%
Saturday
Sunny
45°/ 25° 7°/ -4°
0%
Sunday
Sunny
48°/ 28° 9°/ -2°
0%
Monday
Sunny
50°/ 28° 10°/ -2°
0%
Tuesday
Sunny
52°/ 28° 11°/ -2°
0%
Wednesday
Sunny
55°13°
0%

Night: Mostly cloudy. A chance of rain showers until early morning. A chance of snow showers after midnight. Little or no snow accumulation. Blustery with lows in the lower 30s. North winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 50 percent.

Evanston, IL

Tonight
Rain Showers
38°3°
20%
Thursday
Rain Showers
42°/ 32° 6°/ 0°
50%
Friday
Snow Showers
42°/ 28° 6°/ -2°
50%
Saturday
Cloudy
45°/ 30° 7°/ -1°
0%
Sunday
Sunny
48°/ 30° 9°/ -1°
0%
Monday
Sunny
48°/ 32° 9°/ 0°
0%
Tuesday
Sunny
52°/ 32° 11°/ 0°
0%
Wednesday
Sunny
55°13°
0%

Night: Mostly cloudy. A slight chance of showers. Lows in the upper 30s. North winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 20 percent.

Chicago, IL

Tonight
Rain Showers
38°3°
20%
Thursday
Rain Showers
45°/ 35° 7°/ 2°
90%
Friday
Snow Showers
42°/ 32° 6°/ 0°
90%
Saturday
Cloudy
45°/ 32° 7°/ 0°
0%
Sunday
Cloudy
48°/ 32° 9°/ 0°
0%
Monday
Sunny
48°/ 32° 9°/ 0°
0%
Tuesday
Sunny
52°/ 32° 11°/ 0°
0%
Wednesday
Sunny
55°13°
0%

Night: Mostly cloudy. A slight chance of showers. Lows in the upper 30s. Northwest winds 10 to 15 mph. Chance of precipitation 20 percent.

Dixon, IL

Tonight
Rain Showers
28°-2°
N/A
Thursday
Rain Showers
42°6°
20%
Friday
Cloudy
42°/ 25° 6°/ -4°
0%
Saturday
Sunny
45°/ 25° 7°/ -4°
0%
Sunday
Sunny
48°/ 25° 9°/ -4°
0%
Monday
Sunny
48°/ 28° 9°/ -2°
0%
Tuesday
Sunny
52°/ 30° 11°/ -1°
0%
Wednesday
Cloudy
55°13°
0%

Night: Partly cloudy. Lows in the upper 20s. North winds 10 to 15 mph. Gusts up to 25 mph after midnight.

Crystal Lake, IL

Tonight
Rain Showers
35°2°
20%
Thursday
Rain Showers
42°/ 28° 6°/ -2°
20%
Friday
Snow Showers
42°/ 25° 6°/ -4°
20%
Saturday
Cloudy
45°/ 25° 7°/ -4°
0%
Sunday
Sunny
48°/ 28° 9°/ -2°
0%
Monday
Sunny
48°/ 28° 9°/ -2°
0%
Tuesday
Sunny
52°/ 28° 11°/ -2°
0%
Wednesday
Sunny
55°13°
0%

Night: Mostly cloudy. A slight chance of rain showers after midnight. Lows in the mid 30s. North winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 20 percent.

Rochelle, IL

Tonight
Rain Showers
28°-2°
N/A
Thursday
Rain Showers
42°6°
20%
Friday
Cloudy
42°/ 25° 6°/ -4°
0%
Saturday
Sunny
45°/ 25° 7°/ -4°
0%
Sunday
Sunny
48°/ 25° 9°/ -4°
0%
Monday
Sunny
48°/ 28° 9°/ -2°
0%
Tuesday
Sunny
52°/ 28° 11°/ -2°
0%
Wednesday
Cloudy
55°13°
0%

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 20s. North winds around 10 mph. Gusts up to 25 mph after midnight.

Kankakee, IL

Tonight
Mostly Cloudy
32°0°
90%
Thursday
Rain Showers
50%
Friday
Snow Showers
40°/ 25° 4°/ -4°
70%
Saturday
Sunny
45°/ 25° 7°/ -4°
0%
Sunday
Sunny
48°/ 25° 9°/ -4°
0%
Monday
Sunny
48°/ 25° 9°/ -4°
0%
Tuesday
Sunny
52°/ 25° 11°/ -4°
0%
Wednesday
Sunny
55°13°
0%

Night: A chance of rain showers early in the evening, then rain showers likely in the late evening and early morning. Snow showers in the late evening and overnight. Snow accumulation around an inch. Blustery with lows in the lower 30s. North winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 90 percent.

Waukegan, IL

Tonight
Rain Showers
38°3°
20%
Thursday
Rain Showers
42°/ 32° 6°/ 0°
50%
Friday
Snow Showers
42°/ 28° 6°/ -2°
50%
Saturday
Cloudy
45°/ 28° 7°/ -2°
0%
Sunday
Sunny
48°/ 28° 9°/ -2°
0%
Monday
Sunny
50°/ 30° 10°/ -1°
0%
Tuesday
Sunny
52°/ 32° 11°/ 0°
0%
Wednesday
Sunny
55°13°
0%

Night: Mostly cloudy. A slight chance of showers late. Lows in the upper 30s. North winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 20 percent.

Crete, IL

Tonight
Rain Showers
32°0°
90%
Thursday
Rain Showers
90%
Friday
Snow Showers
40°/ 28° 4°/ -2°
90%
Saturday
Sunny
45°/ 28° 7°/ -2°
0%
Sunday
Sunny
48°/ 28° 9°/ -2°
0%
Monday
Sunny
48°/ 28° 9°/ -2°
0%
Tuesday
Sunny
52°/ 28° 11°/ -2°
0%
Wednesday
Sunny
55°13°
0%

Night: Rain showers until early morning. Snow showers in the late evening and overnight. Snow accumulation of 1 to 3 inches. Breezy with lows in the lower 30s. North winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 90 percent.

Belvidere, IL

Tonight
Rain Showers
28°-2°
N/A
Thursday
Rain Showers
42°6°
20%
Friday
Cloudy
42°/ 25° 6°/ -4°
0%
Saturday
Sunny
45°/ 25° 7°/ -4°
0%
Sunday
Sunny
48°/ 25° 9°/ -4°
0%
Monday
Sunny
48°/ 28° 9°/ -2°
0%
Tuesday
Sunny
52°/ 28° 11°/ -2°
0%
Wednesday
Sunny
55°13°
0%

Night: Mostly cloudy. Lows in the upper 20s. North winds 10 to 15 mph with gusts up to 25 mph.

Pontiac, IL

Tonight
Mostly Cloudy
30°-1°
40%
Thursday
Rain Showers
20%
Friday
Snow Showers
42°/ 25° 6°/ -4°
50%
Saturday
Sunny
45°/ 25° 7°/ -4°
0%
Sunday
Sunny
48°/ 25° 9°/ -4°
0%
Monday
Sunny
52°/ 25° 11°/ -4°
0%
Tuesday
Sunny
52°/ 28° 11°/ -2°
0%
Wednesday
Sunny
58°14°
0%

Night: Mostly cloudy. A slight chance of rain showers until early morning. A slight chance of snow showers in the late evening and early morning, then a chance of snow showers late. Little or no snow accumulation. Blustery with lows around 30. North winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 40 percent.

Gary, IN

Tonight
Rain Showers
32°0°
100%
Thursday
Rain Showers
90%
Friday
Snow Showers
40°/ 30° 4°/ -1°
100%
Saturday
Snow Showers
45°/ 28° 7°/ -2°
20%
Sunday
Cloudy
48°/ 28° 9°/ -2°
0%
Monday
Sunny
48°/ 28° 9°/ -2°
0%
Tuesday
Sunny
52°/ 28° 11°/ -2°
0%
Wednesday
Sunny
55°13°
0%

Night: Rain showers. Snow showers after midnight. Snow accumulation of 1 to 3 inches. Breezy with lows in the lower 30s. North winds 15 to 20 mph with gusts up to 30 mph, becoming northwest 5 to 10 mph after midnight. Chance of precipitation near 100 percent.

Names listed above may include county names.

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