Hourly Weather Forecast - Union, IL

12 AM
22°F
10%
2mph
ESE
Mostly Cloudy
Humidity
78%
Feels like
22°F
Dew Point
17°F
1 AM
22°F
10%
2mph
SE
Mostly Cloudy
Humidity
79%
Feels like
22°F
Dew Point
17°F
2 AM
22°F
10%
3mph
ESE
Mostly Cloudy
Humidity
80%
Feels like
22°F
Dew Point
17°F
3 AM
23°F
10%
3mph
ESE
Mostly Cloudy
Humidity
81%
Feels like
23°F
Dew Point
18°F
4 AM
23°F
10%
3mph
SE
Partly Cloudy
Humidity
81%
Feels like
23°F
Dew Point
18°F
5 AM
23°F
10%
3mph
SE
Mostly Clear
Humidity
81%
Feels like
23°F
Dew Point
18°F
6 AM
22°F
10%
3mph
SE
Mostly Clear
Humidity
84%
Feels like
22°F
Dew Point
18°F
7 AM
21°F
10%
3mph
SE
Mostly Clear
Humidity
84%
Feels like
17°F
Dew Point
17°F
7:19 AM
8 AM
22°F
10%
4mph
SE
Sunny
Humidity
82%
Feels like
17°F
Dew Point
17°F
9 AM
23°F
10%
4mph
SSE
Sunny
Humidity
79%
Feels like
18°F
Dew Point
18°F
10 AM
25°F
10%
4mph
SSE
Sunny
Humidity
76%
Feels like
19°F
Dew Point
19°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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