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  • Extreme Heat Warning for Saint Louis - Click for Details
    ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT SATURDAY...
    Expires: September 05, 2026 @ 9:00pm
    WHAT
    Dangerously hot conditions with heat index values up to 108.
    WHERE
    In Illinois, Madison IL, Monroe IL, and Saint Clair IL Counties. In Missouri, Jefferson MO, Saint Charles MO, Saint Louis City MO, and Saint Louis MO Counties.
    WHEN
    Until 8 PM CDT Saturday.
    IMPACTS
    Heat related illnesses increase significantly during extreme heat and high humidity events.
    PRECAUTIONARY/PREPAREDNESS ACTIONS
    People in the Saint Louis Metropolitan Area can get information about cooling centers or energy assistance related to the excessive heat by calling the United Way of Greater Saint Louis at 800-427-4626, or if calling from a land line phone dial 2-1-1. You can also call Cool Down Saint Louis at 314-241-7668.
Clear
89°
Clear
Humidity: 60% Dew Point: 74°
Wind: S 5 mph
Conditions as of 11:53pm
Tonight
78°
Lows dip down to about 78 under clear skies.
10%  
6:32am   7:28pm
Friday
101°
High of 101 under sunny skies.
14%  
6:32am   7:26pm
Friday Night
79°
Mainly clear with overnight lows approaching 79.
3%  
6:32am   7:26pm
7-Day Forecast:
Tonight
Clear
78°
Lows dip down to about 78 under clear skies. South winds 5 to 10 mph.
10% S 4 mph
10%
S 4 mph
Friday
9/4
Sunny
101°
High of 101 under sunny skies. Southwest winds 5 to 10 mph.
14% SW 4 mph
Sunrise: 6:32am  Sunset: 7:26pm Moon: Last Quarter
14%
SW 4 mph
Friday Night
Mostly Clear
79°
Mainly clear with overnight lows approaching 79. Winds out of the southwest around 5 mph.
3% SSW 3 mph
3%
SSW 3 mph
Saturday
9/5
Mostly Sunny
100°
High temperatures reach up to 100 under mainly clear skies. Winds becoming west around 5 mph.
7% W 3 mph
Sunrise: 6:33am  Sunset: 7:25pm Moon: Waning Crescent
7%
W 3 mph
Saturday Night
Mostly Clear
75°
Mainly clear skies with overnight lows approaching 75. Winds turning northeast around 5 mph.
2% NNE 3 mph
2%
NNE 3 mph
Sunday
9/6
Mostly Sunny
95°
Highs around 95 under mainly clear skies. Winds out of the northeast 5 to 10 mph.
3% NE 5 mph
Sunrise: 6:34am  Sunset: 7:23pm Moon: Waning Crescent
3%
NE 5 mph
Sunday Night
Mostly Clear
69°
Lows around 69 under mainly clear skies. Winds out of the northeast 8 to 15 mph.
1% ENE 7 mph
1%
ENE 7 mph
Monday
9/7
Mostly Sunny
94°
Mainly clear with daytime highs approaching 94. East winds 5 to 10 mph.
0% E 5 mph
Sunrise: 6:35am  Sunset: 7:21pm Moon: Waning Crescent
0%
E 5 mph
Monday Night
Mostly Clear
71°
Lows dip down to about 71 under mainly clear skies. Easterly winds 5 to 10 mph.
0% E 5 mph
0%
E 5 mph
Tuesday
9/8
Mostly Sunny
98°
High of 98 under mainly clear skies. Southeast winds 5 to 10 mph.
1% SSE 4 mph
Sunrise: 6:36am  Sunset: 7:20pm Moon: Waning Crescent
1%
SSE 4 mph
Tuesday Night
Mostly Clear
77°
Mainly clear skies with lows around 77. Southerly winds 8 to 15 mph.
1% S 7 mph
1%
S 7 mph
Wednesday
9/9
Mostly Sunny
100°
High temperatures reach up to 100 under mainly sunny skies. Southwesterly winds 8 to 15 mph.
7% SW 7 mph
Sunrise: 6:37am  Sunset: 7:18pm Moon: New Moon
7%
SW 7 mph
Wednesday Night
Isolated Thunderstorms
77°
Partly cloudy with a slight chance for scattered storms. Lows around 77. Winds out of the south 8 to 15 mph.
20% SSW 7 mph
20%
SSW 7 mph
Thursday
9/10
Isolated Thunderstorms
95°
Partly cloudy skies with a slight chance for scattered storms. High of 95. West winds 8 to 15 mph.
23% WSW 7 mph
Sunrise: 6:38am  Sunset: 7:17pm Moon: New Moon
23%
WSW 7 mph
Next 36 Hours
11:00pm
Clear
85°
Clear
S 5 mph
12:00am
Clear
85°
Clear
S 4 mph
1:00am
Clear
83°
Clear
S 4 mph
2:00am
Clear
81°
Clear
SSW 4 mph
3:00am
Clear
79°
Clear
SSW 3 mph
4:00am
Clear
79°
Clear
SSW 3 mph
5:00am
Clear
79°
Clear
SSW 3 mph
6:00am
Sunny
77°
Sunny
SSW 3 mph
7:00am
Sunny
77°
Sunny
SW 3 mph
8:00am
Sunny
81°
Sunny
WSW 3 mph
9:00am
Sunny
85°
Sunny
WSW 3 mph
10:00am
Sunny
88°
Sunny
W 4 mph
11:00am
Sunny
94°
Sunny
W 4 mph
12:00pm
Sunny
95°
Sunny
W 4 mph
1:00pm
Sunny
97°
Mostly Sunny
WSW 4 mph
2:00pm
Sunny
99°
Mostly Sunny
SW 4 mph
3:00pm
Sunny
99°
Mostly Sunny
SW 4 mph
4:00pm
Sunny
99°
Mostly Sunny
SSW 4 mph
5:00pm
Sunny
99°
Mostly Sunny
SSW 4 mph
6:00pm
Sunny
97°
Mostly Sunny
SSW 4 mph
7:00pm
Sunny
95°
Mostly Sunny
S 4 mph
8:00pm
Clear
92°
Mainly Clear
SSW 3 mph
9:00pm
Clear
88°
Clear
S 2 mph
10:00pm
Clear
86°
Mainly Clear
S 2 mph
11:00pm
Clear
85°
Mainly Clear
SSW 2 mph
12:00am
Clear
83°
Mainly Clear
SSW 2 mph
1:00am
Clear
83°
Mainly Clear
SSW 2 mph
2:00am
Mostly Clear
81°
Mainly Clear
SW 2 mph
3:00am
Mostly Clear
81°
Mainly Clear
SW 2 mph
4:00am
Mostly Clear
81°
Mainly Clear
WSW 2 mph
5:00am
Clear
79°
Mainly Clear
WSW 2 mph
6:00am
Sunny
79°
Mostly Sunny
WSW 2 mph
7:00am
Sunny
79°
Sunny
WSW 2 mph
8:00am
Sunny
81°
Sunny
W 2 mph
9:00am
Sunny
83°
Sunny
W 2 mph
10:00am
Sunny
88°
Mostly Sunny
W 3 mph

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