SAINT LOUIS, MO 63145 Weather Forecast & Current Conditions

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ST. LOUIS, MO
Current Weather

7:51 PM CDT SEP 9, 2026
Broken Clouds
88°F
Feels Like: 92°F
Dewpoint: 68°F
Rel. Hum.: 52%
Visibility: 10 miles
Wind: Calm
Pressure: 29.98 inches
Last 72 hours

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SAINT LOUIS, MO 63145
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
A chance of thunderstorms. Showers. Lows in the lower 70s. Southeast winds around 5 mph, becoming northeast after midnight. Chance of rain 90 percent.
THURSDAY
Cloudy with a chance of thunderstorms. Showers, mainly in the morning. Cooler with highs in the lower 80s. North winds around 5 mph. Chance of rain 90 percent.
THURSDAY NIGHT
Mostly cloudy. Lows in the mid 60s. Northeast winds around 5 mph.
FRIDAY
Partly sunny. Highs in the lower 80s. East winds around 5 mph.
FRIDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 60s. Southeast winds around 5 mph.
SATURDAY
Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent.
SATURDAY NIGHT
Partly cloudy. A slight chance of showers after midnight. Lows in the upper 60s. Chance of rain 20 percent.
SUNDAY AND SUNDAY NIGHT
Partly cloudy. Highs around 90. Lows around 70.
MONDAY
Sunny. Highs in the mid 90s. Heat index values up to 100 in the afternoon.
MONDAY NIGHT
Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 20 percent.
TUESDAY THROUGH WEDNESDAY
Partly cloudy with a chance of showers with a slight chance of thunderstorms. Highs in the upper 80s. Lows in the upper 60s. Chance of rain 40 percent.

Visible Weather Satellite
SAINT LOUIS, MO 63145
Infrared Weather Satellite
SAINT LOUIS, MO 63145
NEXRAD Weather Radar
SAINT LOUIS, MO 63145

ST. LOUIS, MO 3 hourly weather forecast

weather forecast created  7:00 AM CDT  9/ 9/2026
Wednesday
9 SEP 2026
SAINT LOUIS, MO 63145 weather forecast Day 1, 12 hours 1 PM 95° 102° Partly Cloudy 35%
RAIN
.1–.25 in
0% Thunder
( 35% severe)
WNW   9 45% 70°
High 96° SAINT LOUIS, MO 63145 weather forecast Day 1, 15 hours 4 PM 95° 102° Partly Cloudy W   9 45% 70°
Partly Cloudy

Chance of Rain

SAINT LOUIS, MO 63145 weather forecast Day 1, 18 hours 7 PM 87° 93° Partly Cloudy 42%
RAIN
***
0% Thunder
( 43% severe)
NNE   8 59% 71°
SAINT LOUIS, MO 63145 weather forecast Day 1, 21 hours 10 PM 81° 86° Mostly Cloudy NNE   6 77% 73°
Thursday
10 SEP 2026
SAINT LOUIS, MO 63145 weather forecast Day 2, 0 hours 1 AM 78° 80° Mostly Cloudy 78%
RAIN
***
0% Thunder
( 36% severe)
NE   6 88% 74°
Low 73° SAINT LOUIS, MO 63145 weather forecast Day 2, 3 hours 4 AM 76° 76° Mostly Cloudy WSW   6 90% 73°
High 79° SAINT LOUIS, MO 63145 weather forecast Day 2, 6 hours 7 AM 74° 74° Mostly Cloudy 95%
RAIN
***
0% Thunder
( 21% severe)
N   6 93% 72°

Mostly Cloudy

Rain

SAINT LOUIS, MO 63145 weather forecast Day 2, 9 hours 10 AM 74° 74° Mostly Cloudy NW   8 93% 72°
SAINT LOUIS, MO 63145 weather forecast Day 2, 12 hours 1 PM 76° 76° Mostly Cloudy 31%
RAIN
.01–.1 in
0% Thunder
( 16% severe)
N   7 87% 72°
SAINT LOUIS, MO 63145 weather forecast Day 2, 15 hours 4 PM 79° 82° Mostly Cloudy N   7 74% 70°
SAINT LOUIS, MO 63145 weather forecast Day 2, 18 hours 7 PM 76° 77° Partly Cloudy 1%

0% Thunder
( 7% severe)
NNE   6 76% 68°
SAINT LOUIS, MO 63145 weather forecast Day 2, 21 hours 10 PM 72° 72° Mostly Cloudy NE   3 90% 69°
Friday
11 SEP 2026
SAINT LOUIS, MO 63145 weather forecast Day 3, 0 hours 1 AM 70° 70° Mostly Cloudy 3%

0% Thunder
( 1% severe)
ENE   2 93% 68°
Low 66° SAINT LOUIS, MO 63145 weather forecast Day 3, 3 hours 4 AM 69° 69° Mostly Cloudy ENE   5 93% 67°
High 83° SAINT LOUIS, MO 63145 weather forecast Day 3, 6 hours 7 AM 67° 67° Mostly Cloudy 7%

0% Thunder
( 3% severe)
ENE   5 97% 66°

Mostly Cloudy



SAINT LOUIS, MO 63145 weather forecast Day 3, 9 hours 10 AM 74° 74° Mostly Cloudy ESE   7 79% 67°
SAINT LOUIS, MO 63145 weather forecast Day 3, 15 hours 1 PM 80° 83° Mostly Cloudy 7%

0% Thunder
( 14% severe)
SE   7 67% 68°
SAINT LOUIS, MO 63145 weather forecast Day 3, 18 hours 4 PM 83° 86° Partly Cloudy SE   6 61% 68°
SAINT LOUIS, MO 63145 weather forecast Day 3, 21 hours 7 PM 78° 80° Partly Cloudy     ESE   7 69% 67°

ST. LOUIS, MO extended weather forecast

Saturday
12 SEP 2026
Sunday
13 SEP 2026
Monday
14 SEP 2026
Tuesday
15 SEP 2026
Wednesday
16 SEP 2026
Low 67° Low 70° Low 72° Low 72° Low 67°
High 92° High 92° High 93° High 88° High 85°
SAINT LOUIS, MO 63145 weather forecast Day 4 SAINT LOUIS, MO 63145 weather forecast Day 5 SAINT LOUIS, MO 63145 weather forecast Day 6 SAINT LOUIS, MO 63145 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Clear
4% Rain
Partly Cloudy
15% Rain
Partly Cloudy
22% Rain
Partly Cloudy
49% Rain
Overcast
40% Rain
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