Hourly Weather Forecast - Union, IL

3 AM
11°F
0%
3mph
S
Foggy
Humidity
99%
Feels like
5°F
Dew Point
11°F
4 AM
11°F
0%
4mph
S
Foggy
Humidity
100%
Feels like
5°F
Dew Point
11°F
5 AM
12°F
0%
5mph
S
Foggy
Humidity
99%
Feels like
4°F
Dew Point
12°F
6 AM
14°F
0%
5mph
S
Partly Cloudy
Humidity
96%
Feels like
5°F
Dew Point
13°F
7 AM
15°F
0%
7mph
S
Partly Cloudy
Humidity
93%
Feels like
6°F
Dew Point
14°F
7:16 AM
8 AM
18°F
0%
8mph
S
Partly Cloudy
Humidity
91%
Feels like
8°F
Dew Point
16°F
9 AM
21°F
0%
9mph
S
Mostly Sunny
Humidity
88%
Feels like
11°F
Dew Point
18°F
10 AM
24°F
0%
10mph
SSW
Mostly Sunny
Humidity
88%
Feels like
14°F
Dew Point
21°F
11 AM
27°F
0%
12mph
SSW
Mostly Sunny
Humidity
86%
Feels like
17°F
Dew Point
24°F
12 PM
29°F
0%
13mph
SSW
Sunny
Humidity
85%
Feels like
19°F
Dew Point
26°F
1 PM
31°F
0%
14mph
SSW
Sunny
Humidity
87%
Feels like
21°F
Dew Point
28°F
2 PM
32°F
0%
14mph
SW
Sunny
Humidity
87%
Feels like
22°F
Dew Point
29°F
3 PM
33°F
0%
15mph
SW
Mostly Sunny
Humidity
89%
Feels like
23°F
Dew Point
30°F
4 PM
33°F
0%
15mph
SW
Mostly Sunny
Humidity
88%
Feels like
23°F
Dew Point
30°F
4:22 PM
5 PM
33°F
0%
15mph
SW
Mostly Clear
Humidity
89%
Feels like
22°F
Dew Point
30°F
6 PM
33°F
10%
16mph
SW
Partly Cloudy
Humidity
89%
Feels like
22°F
Dew Point
30°F
7 PM
33°F
10%
15mph
SW
Partly Cloudy
Humidity
90%
Feels like
23°F
Dew Point
31°F
8 PM
34°F
10%
15mph
SW
Mostly Cloudy
Humidity
89%
Feels like
24°F
Dew Point
31°F
9 PM
35°F
10%
15mph
WSW
Cloudy
Humidity
89%
Feels like
25°F
Dew Point
32°F
10 PM
35°F
0%
14mph
WSW
Cloudy
Humidity
89%
Feels like
26°F
Dew Point
32°F
11 PM
35°F
0%
13mph
WSW
Cloudy
Humidity
89%
Feels like
26°F
Dew Point
32°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday'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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