BALLWIN, MO 63021 Weather Forecast & Current Conditions
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  63021 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

SPIRIT OF ST. LOUIS, MO
Current Weather
7:54 AM CDT APR 11, 2026
Overcast
Haze
54°F
Feels Like: 52°F
Dewpoint: 46°F
Rel. Hum.: 74%
Visibility: 6 miles
Wind: E at 8 mph
Pressure: 30.34 inches
Last 72 hours

Local Area Snow Depth

Missouri Current Weather

Missouri MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  63021 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

BALLWIN, MO 63021
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TODAY
Partly sunny. A slight chance of showers this afternoon. Highs in the lower 70s. East winds 5 to 10 mph. Chance of rain 20 percent.
TONIGHT
Partly cloudy. A slight chance of showers in the evening. Not as cool with lows around 60. Southeast winds 5 to 10 mph. Chance of rain 20 percent.
SUNDAY
Mostly sunny in the morning, then mostly cloudy with a chance of showers in the afternoon. Highs in the lower 80s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent.
SUNDAY NIGHT
Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 60s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.
MONDAY
Mostly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent.
MONDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 60s.
TUESDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.
TUESDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 50 percent.
WEDNESDAY
A chance of thunderstorms. Showers likely, mainly in the morning. Highs in the mid 80s. Chance of rain 60 percent.
WEDNESDAY NIGHT
Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely after midnight. Lows in the mid 60s. Chance of rain 70 percent.
THURSDAY
Showers likely with a slight chance of thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 70 percent.
THURSDAY NIGHT
Partly cloudy in the evening, then clearing. A slight chance of thunderstorms in the evening. A chance of showers. Lows in the lower 60s. Chance of rain 50 percent.
FRIDAY
Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.

  63021 WEATHER SATELLITE LOOPS
Visible Weather Satellite
BALLWIN, MO 63021
Infrared Weather Satellite
BALLWIN, MO 63021
  63021 WEATHER RADAR LOOP
NEXRAD Weather Radar
BALLWIN, MO 63021
 MOS COMPUTER WEATHER FORECAST

SPIRIT OF ST. LOUIS, MO 3 hourly weather forecast
weather forecast created  6:00 PM MDT  4/10/2026
Saturday
11 APR 2026		 BALLWIN, MO 63021 weather forecast Day 1, 0 hours 1 AM 54° 54° Partly Cloudy 14%
RAIN
<.01 in		 0% Thunder
( 4% severe)		 NE   2 74% 46°
Low 51° BALLWIN, MO 63021 weather forecast Day 1, 3 hours 4 AM 52° 52° Partly Cloudy E   2 77% 45°
High 73° BALLWIN, MO 63021 weather forecast Day 1, 6 hours 7 AM 52° 51° Mostly Cloudy 27%
RAIN
<.01 in		 0% Thunder
( 5% severe)		 E   5 80% 46°

Mostly Cloudy

Chance of Rain

 BALLWIN, MO 63021 weather forecast Day 1, 9 hours 10 AM 57° 56° Mostly Cloudy E   7 69% 47°
BALLWIN, MO 63021 weather forecast Day 1, 12 hours 1 PM 65° 65° Mostly Cloudy 31%
RAIN
.01–.1 in		 0% Thunder
( 10% severe)		 ESE   8 60% 51°
BALLWIN, MO 63021 weather forecast Day 1, 15 hours 4 PM 71° 71° Partly Cloudy SE   9 55% 54°
BALLWIN, MO 63021 weather forecast Day 1, 18 hours 7 PM 70° 70° Mostly Cloudy 4%

 0% Thunder
( 7% severe)		 SE   7 57% 54°
BALLWIN, MO 63021 weather forecast Day 1, 21 hours 10 PM 65° 65° Partly Cloudy SSE   7 68% 54°
Sunday
12 APR 2026		 BALLWIN, MO 63021 weather forecast Day 2, 0 hours 1 AM 64° 64° Partly Cloudy 4%

 0% Thunder
( 3% severe)		 S   8 70% 54°
Low 59° BALLWIN, MO 63021 weather forecast Day 2, 3 hours 4 AM 62° 61° Partly Cloudy S   8 70% 52°
High 81° BALLWIN, MO 63021 weather forecast Day 2, 6 hours 7 AM 63° 63° Partly Cloudy 9%

 0% Thunder
( 6% severe)		 S   8 67% 52°

Mostly Cloudy

Chance of Rain

 BALLWIN, MO 63021 weather forecast Day 2, 9 hours 10 AM 72° 72° Mostly Cloudy S   13 53% 54°
BALLWIN, MO 63021 weather forecast Day 2, 12 hours 1 PM 78° 79° Mostly Cloudy 38%
RAIN
.1–.25 in		 0% Thunder
( 14% severe)		 SSW   16 45% 55°
BALLWIN, MO 63021 weather forecast Day 2, 15 hours 4 PM 78° 79° Mostly Cloudy S   16 42% 53°
BALLWIN, MO 63021 weather forecast Day 2, 18 hours 7 PM 75° 75° Mostly Cloudy 27%
RAIN
.25–.5 in		 0% Thunder
( 23% severe)		 S   13 45% 52°
BALLWIN, MO 63021 weather forecast Day 2, 21 hours 10 PM 71° 71° Mostly Cloudy SSW   13 51% 52°

SPIRIT OF ST. LOUIS, MO extended weather forecast
Monday
13 APR 2026		 Tuesday
14 APR 2026		 Wednesday
15 APR 2026		 Thursday
16 APR 2026		 Friday
17 APR 2026
Low 63° Low 65° Low 66° Low 56° Low 55°
High 84° High 82° High 81° High 80° High 77°
BALLWIN, MO 63021 weather forecast Day 3 BALLWIN, MO 63021 weather forecast Day 4 BALLWIN, MO 63021 weather forecast Day 5 BALLWIN, MO 63021 weather forecast Day 6 BALLWIN, MO 63021 weather forecast Day 7
Mostly Cloudy
53% Rain		 Mostly Cloudy
31% Rain		 Overcast
70% Rain		 Partly Cloudy
36% Rain		 Mostly Cloudy
41% Rain
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