Hourly Weather Forecast - Saint Peters, MO

12 AM
41°F
0%
4mph
SW
Cloudy
Humidity
80%
Feels like
38°F
Dew Point
35°F
1 AM
41°F
0%
4mph
SW
Cloudy
Humidity
81%
Feels like
38°F
Dew Point
36°F
2 AM
41°F
0%
4mph
WSW
Cloudy
Humidity
82%
Feels like
38°F
Dew Point
36°F
3 AM
40°F
0%
3mph
WSW
Cloudy
Humidity
84%
Feels like
39°F
Dew Point
36°F
4 AM
40°F
0%
3mph
WSW
Cloudy
Humidity
85%
Feels like
40°F
Dew Point
35°F
5 AM
39°F
0%
2mph
WSW
Cloudy
Humidity
87%
Feels like
39°F
Dew Point
35°F
6 AM
38°F
0%
2mph
WSW
Mostly Cloudy
Humidity
88%
Feels like
38°F
Dew Point
35°F
7 AM
38°F
0%
2mph
WSW
Partly Cloudy
Humidity
89%
Feels like
38°F
Dew Point
35°F
7:14 AM
8 AM
39°F
10%
1mph
W
Partly Cloudy
Humidity
87%
Feels like
39°F
Dew Point
36°F
9 AM
41°F
10%
1mph
WSW
Mostly Sunny
Humidity
83%
Feels like
41°F
Dew Point
37°F
10 AM
44°F
10%
0mph
SW
Mostly Sunny
Humidity
78%
Feels like
44°F
Dew Point
37°F
11 AM
46°F
10%
0mph
SW
Sunny
Humidity
73%
Feels like
46°F
Dew Point
38°F
12 PM
48°F
10%
0mph
S
Sunny
Humidity
69%
Feels like
48°F
Dew Point
38°F
1 PM
50°F
10%
1mph
SSE
Sunny
Humidity
67%
Feels like
50°F
Dew Point
39°F
2 PM
50°F
10%
2mph
SSE
Sunny
Humidity
66%
Feels like
50°F
Dew Point
39°F
3 PM
50°F
10%
3mph
SSE
Mostly Sunny
Humidity
67%
Feels like
49°F
Dew Point
40°F
4 PM
49°F
10%
4mph
SE
Mostly Sunny
Humidity
71%
Feels like
47°F
Dew Point
40°F
4:42 PM
5 PM
47°F
10%
4mph
SE
Mostly Clear
Humidity
76%
Feels like
45°F
Dew Point
40°F
6 PM
46°F
10%
5mph
SSE
Partly Cloudy
Humidity
79%
Feels like
43°F
Dew Point
39°F
7 PM
45°F
10%
5mph
SSE
Partly Cloudy
Humidity
81%
Feels like
42°F
Dew Point
39°F
8 PM
44°F
0%
6mph
SSE
Partly Cloudy
Humidity
83%
Feels like
41°F
Dew Point
39°F
9 PM
44°F
0%
6mph
S
Mostly Cloudy
Humidity
85%
Feels like
41°F
Dew Point
40°F
10 PM
45°F
0%
7mph
S
Mostly Cloudy
Humidity
87%
Feels like
41°F
Dew Point
41°F
11 PM
46°F
10%
7mph
S
Mostly Cloudy
Humidity
88%
Feels like
42°F
Dew Point
43°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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