Hourly Weather Forecast - Saint Peters, MO

12 AM
33°F
0%
7mph
S
Clear
Humidity
58%
Feels like
27°F
Dew Point
20°F
1 AM
34°F
0%
7mph
S
Clear
Humidity
59%
Feels like
28°F
Dew Point
21°F
2 AM
35°F
0%
7mph
S
Clear
Humidity
59%
Feels like
29°F
Dew Point
22°F
3 AM
35°F
0%
7mph
S
Clear
Humidity
60%
Feels like
29°F
Dew Point
22°F
4 AM
35°F
0%
7mph
S
Clear
Humidity
61%
Feels like
30°F
Dew Point
23°F
5 AM
35°F
0%
6mph
S
Clear
Humidity
62%
Feels like
30°F
Dew Point
24°F
6 AM
36°F
0%
6mph
S
Clear
Humidity
63%
Feels like
30°F
Dew Point
24°F
7 AM
37°F
0%
6mph
S
Mostly Clear
Humidity
63%
Feels like
32°F
Dew Point
26°F
7:16 AM
8 AM
39°F
0%
6mph
S
Mostly Sunny
Humidity
62%
Feels like
34°F
Dew Point
27°F
9 AM
42°F
0%
6mph
S
Partly Cloudy
Humidity
60%
Feels like
38°F
Dew Point
29°F
10 AM
45°F
0%
7mph
SSW
Mostly Sunny
Humidity
57%
Feels like
41°F
Dew Point
31°F
11 AM
48°F
0%
7mph
SSW
Mostly Sunny
Humidity
55%
Feels like
45°F
Dew Point
33°F
12 PM
51°F
10%
7mph
SSW
Mostly Sunny
Humidity
54%
Feels like
51°F
Dew Point
35°F
1 PM
53°F
10%
6mph
SW
Mostly Sunny
Humidity
54%
Feels like
53°F
Dew Point
37°F
2 PM
54°F
10%
6mph
SW
Partly Cloudy
Humidity
55%
Feels like
54°F
Dew Point
38°F
3 PM
54°F
10%
5mph
SW
Partly Cloudy
Humidity
58%
Feels like
54°F
Dew Point
39°F
4 PM
52°F
10%
4mph
WSW
Partly Cloudy
Humidity
62%
Feels like
52°F
Dew Point
40°F
4:43 PM
5 PM
50°F
10%
3mph
W
Partly Cloudy
Humidity
68%
Feels like
50°F
Dew Point
40°F
6 PM
48°F
10%
3mph
WNW
Mostly Cloudy
Humidity
71%
Feels like
48°F
Dew Point
40°F
7 PM
47°F
10%
4mph
WNW
Cloudy
Humidity
74%
Feels like
46°F
Dew Point
39°F
8 PM
46°F
10%
4mph
NW
Cloudy
Humidity
76%
Feels like
44°F
Dew Point
39°F
9 PM
45°F
10%
4mph
NW
Cloudy
Humidity
77%
Feels like
42°F
Dew Point
38°F
10 PM
44°F
10%
4mph
NNW
Cloudy
Humidity
77%
Feels like
41°F
Dew Point
37°F
11 PM
42°F
10%
4mph
NNW
Mostly Cloudy
Humidity
77%
Feels like
40°F
Dew Point
35°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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