Hourly Weather Forecast - Posen, IL

12 AM
19°F
0%
2mph
SW
Clear
Humidity
84%
Feels like
19°F
Dew Point
14°F
1 AM
18°F
0%
2mph
SSW
Clear
Humidity
84%
Feels like
18°F
Dew Point
14°F
2 AM
18°F
0%
2mph
SSW
Clear
Humidity
84%
Feels like
18°F
Dew Point
14°F
3 AM
18°F
0%
2mph
SSW
Clear
Humidity
86%
Feels like
18°F
Dew Point
14°F
4 AM
18°F
0%
2mph
S
Clear
Humidity
86%
Feels like
18°F
Dew Point
14°F
5 AM
18°F
0%
3mph
S
Clear
Humidity
86%
Feels like
13°F
Dew Point
14°F
6 AM
18°F
0%
4mph
S
Mostly Clear
Humidity
85%
Feels like
13°F
Dew Point
15°F
7 AM
20°F
0%
4mph
S
Mostly Clear
Humidity
84%
Feels like
14°F
Dew Point
16°F
7:11 AM
8 AM
22°F
0%
5mph
SSW
Mostly Sunny
Humidity
82%
Feels like
15°F
Dew Point
18°F
9 AM
26°F
0%
6mph
SSW
Mostly Sunny
Humidity
77%
Feels like
19°F
Dew Point
20°F
10 AM
29°F
0%
7mph
SSW
Sunny
Humidity
75%
Feels like
22°F
Dew Point
22°F
11 AM
32°F
0%
8mph
SSW
Sunny
Humidity
72%
Feels like
25°F
Dew Point
24°F
12 PM
34°F
0%
9mph
SSW
Sunny
Humidity
71%
Feels like
27°F
Dew Point
26°F
1 PM
35°F
0%
9mph
SSW
Sunny
Humidity
71%
Feels like
28°F
Dew Point
27°F
2 PM
36°F
0%
10mph
SSW
Mostly Sunny
Humidity
74%
Feels like
28°F
Dew Point
28°F
3 PM
35°F
0%
10mph
SSW
Mostly Sunny
Humidity
78%
Feels like
27°F
Dew Point
29°F
4 PM
34°F
0%
10mph
SSW
Partly Cloudy
Humidity
82%
Feels like
26°F
Dew Point
29°F
4:21 PM
5 PM
34°F
0%
10mph
SSW
Partly Cloudy
Humidity
83%
Feels like
26°F
Dew Point
29°F
6 PM
34°F
0%
10mph
SSW
Partly Cloudy
Humidity
83%
Feels like
26°F
Dew Point
30°F
7 PM
35°F
0%
10mph
SSW
Partly Cloudy
Humidity
86%
Feels like
27°F
Dew Point
31°F
8 PM
35°F
0%
11mph
SW
Partly Cloudy
Humidity
86%
Feels like
27°F
Dew Point
31°F
9 PM
35°F
0%
11mph
SW
Partly Cloudy
Humidity
86%
Feels like
28°F
Dew Point
32°F
10 PM
36°F
0%
10mph
SW
Partly Cloudy
Humidity
87%
Feels like
28°F
Dew Point
32°F
11 PM
36°F
0%
10mph
SW
Partly Cloudy
Humidity
87%
Feels like
29°F
Dew Point
33°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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