Hourly Weather Forecast - Saint Peters, MO

12 AM
35°F
10%
4mph
ESE
Mostly Cloudy
Humidity
67%
Feels like
32°F
Dew Point
25°F
1 AM
35°F
10%
4mph
ESE
Mostly Cloudy
Humidity
67%
Feels like
31°F
Dew Point
25°F
2 AM
34°F
10%
3mph
ESE
Mostly Cloudy
Humidity
69%
Feels like
31°F
Dew Point
25°F
3 AM
34°F
10%
3mph
ESE
Mostly Cloudy
Humidity
70%
Feels like
31°F
Dew Point
25°F
4 AM
33°F
10%
3mph
ESE
Partly Cloudy
Humidity
70%
Feels like
30°F
Dew Point
24°F
5 AM
32°F
10%
3mph
ESE
Partly Cloudy
Humidity
71%
Feels like
29°F
Dew Point
24°F
6 AM
32°F
10%
3mph
ESE
Partly Cloudy
Humidity
71%
Feels like
29°F
Dew Point
24°F
7 AM
33°F
10%
4mph
ESE
Partly Cloudy
Humidity
69%
Feels like
30°F
Dew Point
24°F
7:17 AM
8 AM
36°F
10%
4mph
ESE
Mostly Cloudy
Humidity
65%
Feels like
33°F
Dew Point
25°F
9 AM
38°F
10%
4mph
SE
Cloudy
Humidity
61%
Feels like
36°F
Dew Point
26°F
10 AM
41°F
10%
4mph
SE
Cloudy
Humidity
57%
Feels like
38°F
Dew Point
27°F
11 AM
43°F
10%
4mph
SE
Cloudy
Humidity
55%
Feels like
41°F
Dew Point
28°F
12 PM
45°F
10%
4mph
SE
Cloudy
Humidity
54%
Feels like
43°F
Dew Point
29°F
1 PM
46°F
10%
4mph
SE
Mostly Cloudy
Humidity
54%
Feels like
45°F
Dew Point
30°F
2 PM
47°F
10%
4mph
SE
Mostly Cloudy
Humidity
55%
Feels like
45°F
Dew Point
32°F
3 PM
47°F
10%
4mph
SE
Mostly Cloudy
Humidity
58%
Feels like
45°F
Dew Point
33°F
4 PM
46°F
10%
4mph
SE
Mostly Cloudy
Humidity
61%
Feels like
44°F
Dew Point
33°F
4:44 PM
5 PM
44°F
10%
4mph
SE
Mostly Cloudy
Humidity
66%
Feels like
42°F
Dew Point
34°F
6 PM
43°F
10%
4mph
SE
Mostly Cloudy
Humidity
77%
Feels like
41°F
Dew Point
36°F
7 PM
42°F
10%
4mph
SE
Mostly Cloudy
Humidity
70%
Feels like
40°F
Dew Point
33°F
8 PM
42°F
10%
4mph
SE
Mostly Cloudy
Humidity
75%
Feels like
40°F
Dew Point
35°F
9 PM
43°F
10%
4mph
SSE
Partly Cloudy
Humidity
79%
Feels like
41°F
Dew Point
37°F
10 PM
43°F
10%
4mph
SSE
Partly Cloudy
Humidity
82%
Feels like
41°F
Dew Point
38°F
11 PM
43°F
10%
4mph
SSE
Partly Cloudy
Humidity
83%
Feels like
41°F
Dew Point
39°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday'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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