Hourly Weather Forecast - Union, IL

12 AM
34°F
10%
13mph
WSW
Mostly Cloudy
Humidity
90%
Feels like
25°F
Dew Point
32°F
1 AM
34°F
0%
13mph
W
Partly Cloudy
Humidity
90%
Feels like
26°F
Dew Point
32°F
2 AM
34°F
0%
12mph
W
Partly Cloudy
Humidity
90%
Feels like
26°F
Dew Point
32°F
3 AM
34°F
0%
11mph
W
Cloudy
Humidity
90%
Feels like
26°F
Dew Point
31°F
4 AM
33°F
0%
10mph
WNW
Mostly Cloudy
Humidity
90%
Feels like
25°F
Dew Point
30°F
5 AM
32°F
0%
9mph
WNW
Partly Cloudy
Humidity
92%
Feels like
24°F
Dew Point
30°F
6 AM
30°F
0%
8mph
WNW
Mostly Cloudy
Humidity
93%
Feels like
23°F
Dew Point
29°F
7 AM
30°F
0%
7mph
WNW
Partly Cloudy
Humidity
91%
Feels like
22°F
Dew Point
27°F
7:17 AM
8 AM
29°F
0%
6mph
WNW
Partly Cloudy
Humidity
89%
Feels like
23°F
Dew Point
27°F
9 AM
30°F
0%
6mph
WNW
Mostly Sunny
Humidity
88%
Feels like
24°F
Dew Point
26°F
10 AM
31°F
0%
5mph
WNW
Mostly Sunny
Humidity
86%
Feels like
25°F
Dew Point
27°F
11 AM
32°F
0%
4mph
W
Sunny
Humidity
83%
Feels like
27°F
Dew Point
27°F
12 PM
33°F
0%
4mph
W
Sunny
Humidity
81%
Feels like
29°F
Dew Point
28°F
1 PM
33°F
0%
3mph
SW
Sunny
Humidity
83%
Feels like
30°F
Dew Point
28°F
2 PM
33°F
0%
4mph
SSW
Sunny
Humidity
83%
Feels like
29°F
Dew Point
28°F
3 PM
32°F
0%
6mph
S
Mostly Sunny
Humidity
86%
Feels like
27°F
Dew Point
29°F
4 PM
31°F
0%
7mph
S
Sunny
Humidity
86%
Feels like
25°F
Dew Point
28°F
4:23 PM
5 PM
30°F
0%
8mph
S
Clear
Humidity
89%
Feels like
22°F
Dew Point
27°F
6 PM
29°F
0%
9mph
SSE
Clear
Humidity
88%
Feels like
21°F
Dew Point
26°F
7 PM
30°F
0%
11mph
S
Hazy
Humidity
92%
Feels like
20°F
Dew Point
28°F
8 PM
31°F
10%
13mph
SSE
Partly Cloudy
Humidity
93%
Feels like
21°F
Dew Point
29°F
9 PM
31°F
0%
15mph
S
Partly Cloudy
Humidity
92%
Feels like
21°F
Dew Point
29°F
10 PM
32°F
0%
16mph
S
Partly Cloudy
Humidity
92%
Feels like
22°F
Dew Point
30°F
11 PM
33°F
10%
17mph
S
Mostly Cloudy
Humidity
93%
Feels like
22°F
Dew Point
31°F

Rainfall and Snowfall Totals Through Wednesday

Heavy Rain, Snow, and Winds Wallop Northwest

The atmospheric river this week continues to hit the Pacific Northwest with heavy rain, snow, and high winds.

Tuesday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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