SAINT LOUIS, MO 63145 Weather Forecast & Current Conditions

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ST. LOUIS, MO
Current Weather

10:51 PM CDT AUG 8, 2026
Clear
81°F
Feels Like: 85°F
Dewpoint: 72°F
Rel. Hum.: 74%
Visibility: 10 miles
Wind: S at 9 mph
Pressure: 30.04 inches
Last 72 hours

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SAINT LOUIS, MO 63145
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear. Lows in the lower 70s. South winds around 5 mph.
SUNDAY
Sunny with highs in the mid 90s. South winds 10 to 15 mph. Heat index values up to 104.
SUNDAY NIGHT
Mostly clear. Humid with lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 103 early in the evening.
MONDAY
Mostly sunny. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 111 in the afternoon.
MONDAY NIGHT
Mostly clear. Humid with lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 109 early in the evening.
TUESDAY
Mostly sunny. Hot with highs in the mid 90s. Heat index values up to 110.
TUESDAY NIGHT
Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening.
WEDNESDAY
Partly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105.
WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 50 percent. Heat index values up to 105 early in the evening.
THURSDAY AND THURSDAY NIGHT
Showers and thunderstorms likely. Highs in the mid 80s. Lows around 70. Chance of rain 60 percent.
FRIDAY THROUGH SATURDAY
Mostly cloudy with a chance of showers and thunderstorms. Highs in the mid 80s. Lows in the upper 60s. Chance of rain 50 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  8/ 8/2026
Saturday
8 AUG 2026
SAINT LOUIS, MO 63145 weather forecast Day 1, 12 hours 1 PM 88° 95° Clear 1%

0% Thunder
( 13% severe)
W   3 59% 72°
High 91° SAINT LOUIS, MO 63145 weather forecast Day 1, 15 hours 4 PM 90° 96° Clear WSW   3 54% 71°
Clear



SAINT LOUIS, MO 63145 weather forecast Day 1, 18 hours 7 PM 88° 94° Clear 2%

0% Thunder
( 8% severe)
SSE   6 57% 71°
SAINT LOUIS, MO 63145 weather forecast Day 1, 21 hours 10 PM 81° 85° Clear SSE   7 74% 72°
Sunday
9 AUG 2026
SAINT LOUIS, MO 63145 weather forecast Day 2, 0 hours 1 AM 78° 80° Clear 1%

0% Thunder
( 8% severe)
S   7 79% 71°
Low 74° SAINT LOUIS, MO 63145 weather forecast Day 2, 3 hours 4 AM 76° 77° Clear S   6 85% 71°
High 93° SAINT LOUIS, MO 63145 weather forecast Day 2, 6 hours 7 AM 75° 75° Clear 2%

0% Thunder
( 7% severe)
S   7 87% 71°

Partly Cloudy



SAINT LOUIS, MO 63145 weather forecast Day 2, 9 hours 10 AM 84° 90° Partly Cloudy S   9 70% 73°
SAINT LOUIS, MO 63145 weather forecast Day 2, 12 hours 1 PM 91° 100° Partly Cloudy 2%

0% Thunder
( 16% severe)
S   12 56% 73°
SAINT LOUIS, MO 63145 weather forecast Day 2, 15 hours 4 PM 93° 101° Clear S   13 51% 72°
SAINT LOUIS, MO 63145 weather forecast Day 2, 18 hours 7 PM 91° 99° Clear 0%

0% Thunder
( 13% severe)
S   13 54% 72°
SAINT LOUIS, MO 63145 weather forecast Day 2, 21 hours 10 PM 85° 91° Clear S   13 65% 72°
Monday
10 AUG 2026
SAINT LOUIS, MO 63145 weather forecast Day 3, 0 hours 1 AM 82° 86° Clear 5%

0% Thunder
( 16% severe)
S   12 69% 71°
Low 78° SAINT LOUIS, MO 63145 weather forecast Day 3, 3 hours 4 AM 79° 82° Partly Cloudy S   9 77% 71°
High 95° SAINT LOUIS, MO 63145 weather forecast Day 3, 6 hours 7 AM 78° 80° Partly Cloudy 1%

0% Thunder
( 11% severe)
SSW   9 79% 71°

Partly Cloudy



SAINT LOUIS, MO 63145 weather forecast Day 3, 9 hours 10 AM 86° 92° Partly Cloudy SSW   10 63% 72°
SAINT LOUIS, MO 63145 weather forecast Day 3, 15 hours 1 PM 92° 101° Partly Cloudy 0%

0% Thunder
( 11% severe)
SSW   10 54% 73°
SAINT LOUIS, MO 63145 weather forecast Day 3, 18 hours 4 PM 95° 104° Clear SSW   12 48% 72°
SAINT LOUIS, MO 63145 weather forecast Day 3, 21 hours 7 PM 93° 101° Partly Cloudy     SSW   10 51% 72°

ST. LOUIS, MO extended weather forecast

Tuesday
11 AUG 2026
Wednesday
12 AUG 2026
Thursday
13 AUG 2026
Friday
14 AUG 2026
Saturday
15 AUG 2026
Low 79° Low 75° Low 75° Low 71° Low 68°
High 100° High 93° High 91° High 86° High 83°
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
Partly Cloudy
18% Rain
Partly Cloudy
45% Rain
Overcast
57% Rain
Partly Cloudy
38% Rain
Overcast
48% Rain
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