SAINT LOUIS, MO 63145 Weather Forecast & Current Conditions

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ST. LOUIS, MO
Current Weather

2:51 AM CDT APR 20, 2026
Broken Clouds
48°F
Feels Like: 45°F
Dewpoint: 32°F
Rel. Hum.: 54%
Visibility: 10 miles
Wind: ENE at 7 mph
Pressure: 30.28 inches
Last 72 hours

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SAINT LOUIS, MO 63145
Weather Forecast

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REST OF TONIGHT
Partly cloudy. Lows in the lower 40s. Northeast winds around 5 mph.
MONDAY
Sunny. Highs in the upper 60s. Southeast winds 5 to 10 mph.
MONDAY NIGHT
Mostly clear. Not as cool with lows in the lower 50s. South winds 5 to 10 mph.
TUESDAY
Sunny. Not as cool with highs around 80. Southwest winds 10 to 15 mph with gusts up to 25 mph.
TUESDAY NIGHT
Mostly clear. Lows in the mid 50s. Southwest winds 10 to 15 mph.
WEDNESDAY AND WEDNESDAY NIGHT
Mostly clear. Highs in the upper 70s. Lows in the upper 50s.
THURSDAY
Mostly sunny. Highs in the lower 80s.
THURSDAY NIGHT
Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 70 percent.
FRIDAY
Showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 80 percent.
FRIDAY NIGHT
Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Cooler with lows in the lower 50s. Chance of rain 50 percent.
SATURDAY
Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent.
SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A 40 percent chance of showers. Lows in the lower 50s.
SUNDAY
Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. 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 PM CDT  4/19/2026
Monday
20 APR 2026
SAINT LOUIS, MO 63145 weather forecast Day 1, 0 hours 1 AM 50° 47° Mostly Cloudy 3%

0% Thunder
( 3% severe)
NE   7 50% 32°
Low 44° SAINT LOUIS, MO 63145 weather forecast Day 1, 3 hours 4 AM 47° 45° Partly Cloudy ENE   5 53% 31°
High 69° SAINT LOUIS, MO 63145 weather forecast Day 1, 6 hours 7 AM 45° 43° Clear 1%

0% Thunder
( 1% severe)
E   5 58% 31°

Clear



SAINT LOUIS, MO 63145 weather forecast Day 1, 9 hours 10 AM 54° 52° Clear ESE   8 40% 30°
SAINT LOUIS, MO 63145 weather forecast Day 1, 12 hours 1 PM 62° 61° Clear 1%

0% Thunder
( 1% severe)
SE   8 34% 33°
SAINT LOUIS, MO 63145 weather forecast Day 1, 15 hours 4 PM 67° 67° Clear S   8 33% 37°
SAINT LOUIS, MO 63145 weather forecast Day 1, 18 hours 7 PM 66° 66° Clear 0%

0% Thunder
( 2% severe)
SSE   9 38% 40°
SAINT LOUIS, MO 63145 weather forecast Day 1, 21 hours 10 PM 60° 59° Clear SSE   9 53% 43°
Tuesday
21 APR 2026
SAINT LOUIS, MO 63145 weather forecast Day 2, 0 hours 1 AM 57° 55° Partly Cloudy 0%

0% Thunder
( 1% severe)
S   9 59% 43°
Low 53° SAINT LOUIS, MO 63145 weather forecast Day 2, 3 hours 4 AM 55° 52° Partly Cloudy SSW   9 61% 42°
High 79° SAINT LOUIS, MO 63145 weather forecast Day 2, 6 hours 7 AM 55° 52° Partly Cloudy 2%

0% Thunder
( 1% severe)
SW   9 61% 42°

Partly Cloudy



SAINT LOUIS, MO 63145 weather forecast Day 2, 9 hours 10 AM 67° 67° Partly Cloudy SW   14 43% 44°
SAINT LOUIS, MO 63145 weather forecast Day 2, 12 hours 1 PM 75° 75° Partly Cloudy 2%

0% Thunder
( 5% severe)
SW   16 36% 46°
SAINT LOUIS, MO 63145 weather forecast Day 2, 15 hours 4 PM 78° 78° Clear SW   15 35% 48°
SAINT LOUIS, MO 63145 weather forecast Day 2, 18 hours 7 PM 75° 75° Clear 3%

0% Thunder
( 6% severe)
SW   13 38% 48°
SAINT LOUIS, MO 63145 weather forecast Day 2, 21 hours 10 PM 68° 68° Clear SW   12 51% 49°

ST. LOUIS, MO extended weather forecast

Wednesday
22 APR 2026
Thursday
23 APR 2026
Friday
24 APR 2026
Saturday
25 APR 2026
Sunday
26 APR 2026
Low 56° Low 57° Low 63° Low 53° Low 51°
High 75° High 79° High 76° High 72° High 71°
SAINT LOUIS, MO 63145 weather forecast Day 3 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
Partly Cloudy
16% Rain
Mostly Cloudy
18% Rain
Overcast
76% Rain
Partly Cloudy
36% Rain
Overcast
40% Rain
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