SAINT LOUIS, MO 63121 Weather Forecast & Current Conditions

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ST. LOUIS, MO
Current Weather

2:51 AM CDT AUG 27, 2025
Clear
57°F
Feels Like: 57°F
Dewpoint: 52°F
Rel. Hum.: 83%
Visibility: 10 miles
Wind: Calm
Pressure: 30.27 inches
Last 72 hours

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SAINT LOUIS, MO 63121
Weather Forecast

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REST OF TONIGHT
Clear. Near steady temperature in the mid 50s. Light and variable winds.
WEDNESDAY
Sunny in the morning, then becoming partly sunny. Highs around 80. South winds around 5 mph.
WEDNESDAY NIGHT
Partly cloudy. Lows in the upper 50s. Southeast winds around 5 mph.
THURSDAY
Mostly sunny. Highs in the lower 80s. South winds around 5 mph.
THURSDAY NIGHT
Mostly clear. Lows in the upper 50s. South winds around 5 mph, becoming west after midnight.
FRIDAY THROUGH SATURDAY
Mostly clear. Highs in the lower 80s. Lows in the mid 50s.
SATURDAY NIGHT
Partly cloudy. Lows in the mid 50s.
SUNDAY THROUGH MONDAY NIGHT
Mostly clear. Highs in the lower 80s. Lows in the upper 50s.
TUESDAY
Sunny. Highs in the mid 80s.

Visible Weather Satellite
SAINT LOUIS, MO 63121
Infrared Weather Satellite
SAINT LOUIS, MO 63121
NEXRAD Weather Radar
SAINT LOUIS, MO 63121

ST. LOUIS, MO 3 hourly weather forecast

weather forecast created  7:00 PM CDT  8/26/2025
Wednesday
27 AUG 2025
SAINT LOUIS, MO 63121 weather forecast Day 1, 0 hours 1 AM 63° 64° Clear 0%

0% Thunder
( 1% severe)
E   1 62% 50°
Low 57° SAINT LOUIS, MO 63121 weather forecast Day 1, 3 hours 4 AM 60° 61° Clear ESE   1 69% 50°
High 80° SAINT LOUIS, MO 63121 weather forecast Day 1, 6 hours 7 AM 58° 59° Clear 0%

0% Thunder
( 0% severe)
S   1 75% 50°

Increasing Clouds



SAINT LOUIS, MO 63121 weather forecast Day 1, 9 hours 10 AM 71° 71° Partly Cloudy S   5 47% 50°
SAINT LOUIS, MO 63121 weather forecast Day 1, 12 hours 1 PM 77° 78° Mostly Cloudy 0%

0% Thunder
( 2% severe)
SSW   5 37% 49°
SAINT LOUIS, MO 63121 weather forecast Day 1, 15 hours 4 PM 79° 79° Mostly Cloudy WSW   5 35% 49°
SAINT LOUIS, MO 63121 weather forecast Day 1, 18 hours 7 PM 76° 78° Partly Cloudy 0%

0% Thunder
( 2% severe)
SSE   6 40% 50°
SAINT LOUIS, MO 63121 weather forecast Day 1, 21 hours 10 PM 70° 70° Partly Cloudy SE   6 53% 52°
Thursday
28 AUG 2025
SAINT LOUIS, MO 63121 weather forecast Day 2, 0 hours 1 AM 67° 67° Partly Cloudy 1%

0% Thunder
( 1% severe)
SSE   6 59% 52°
Low 60° SAINT LOUIS, MO 63121 weather forecast Day 2, 3 hours 4 AM 64° 65° Partly Cloudy S   5 65% 52°
High 82° SAINT LOUIS, MO 63121 weather forecast Day 2, 6 hours 7 AM 62° 63° Partly Cloudy 3%

0% Thunder
( 1% severe)
S   3 72% 53°

Partly Cloudy



SAINT LOUIS, MO 63121 weather forecast Day 2, 9 hours 10 AM 73° 73° Partly Cloudy SSW   6 51% 54°
SAINT LOUIS, MO 63121 weather forecast Day 2, 12 hours 1 PM 79° 79° Mostly Cloudy 1%

0% Thunder
( 2% severe)
S   7 42% 54°
SAINT LOUIS, MO 63121 weather forecast Day 2, 15 hours 4 PM 81° 80° Partly Cloudy S   7 38% 53°
SAINT LOUIS, MO 63121 weather forecast Day 2, 18 hours 7 PM 77° 78° Partly Cloudy 1%

0% Thunder
( 2% severe)
S   6 45% 54°
SAINT LOUIS, MO 63121 weather forecast Day 2, 21 hours 10 PM 71° 71° Partly Cloudy SSW   3 59% 56°

ST. LOUIS, MO extended weather forecast

Friday
29 AUG 2025
Saturday
30 AUG 2025
Sunday
31 AUG 2025
Monday
1 SEP 2025
Tuesday
2 SEP 2025
Low 61° Low 62° Low 64° Low 63° Low 63°
High 86° High 86° High 84° High 81° High 80°
SAINT LOUIS, MO 63121 weather forecast Day 3 SAINT LOUIS, MO 63121 weather forecast Day 4 SAINT LOUIS, MO 63121 weather forecast Day 5 SAINT LOUIS, MO 63121 weather forecast Day 6 SAINT LOUIS, MO 63121 weather forecast Day 7
Partly Cloudy
6% Rain
Partly Cloudy
13% Rain
Partly Cloudy
20% Rain
Mostly Cloudy
28% Rain
Partly Cloudy
39% Rain
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