SAINT CLAIR, MO 63077 Weather Forecast & Current Conditions

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SPIRIT OF ST. LOUIS, MO
Current Weather

8:54 AM CDT JUL 22, 2025
Clear
82°F
Feels Like: 89°F
Dewpoint: 75°F
Rel. Hum.: 79%
Visibility: 10 miles
Wind: Calm
Pressure: 29.99 inches
Last 72 hours

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SAINT CLAIR, MO 63077
Weather Forecast

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REST OF TODAY
Sunny late this morning, then becoming partly sunny. Isolated showers and thunderstorms this afternoon. Highs in the lower 90s. South winds around 5 mph. Chance of rain 20 percent. Heat index values up to 108.
TONIGHT
Partly cloudy with isolated showers and thunderstorms in the evening, then mostly clear after midnight. Humid with lows in the mid 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 106 early in the evening.
WEDNESDAY
Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 106.
WEDNESDAY NIGHT
Clear with lows in the mid 70s. South winds around 5 mph. Heat index values up to 107 early in the evening.
THURSDAY
Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 110.
THURSDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening.
FRIDAY AND FRIDAY NIGHT
Partly cloudy. A slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105.
SATURDAY
Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 110.
SATURDAY NIGHT THROUGH MONDAY
Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110.

Visible Weather Satellite
SAINT CLAIR, MO 63077
Infrared Weather Satellite
SAINT CLAIR, MO 63077
NEXRAD Weather Radar
SAINT CLAIR, MO 63077

SPIRIT OF ST. LOUIS, MO 3 hourly weather forecast

weather forecast created  6:00 PM MDT  7/21/2025
Tuesday
22 JUL 2025
SAINT CLAIR, MO 63077 weather forecast Day 1, 0 hours 1 AM 76° 76° Partly Cloudy 7%

0% Thunder
( 14% severe)
ESE   2 94% 74°
Low 74° SAINT CLAIR, MO 63077 weather forecast Day 1, 3 hours 4 AM 75° 75° Partly Cloudy ESE   1 97% 74°
High 93° SAINT CLAIR, MO 63077 weather forecast Day 1, 6 hours 7 AM 76° 76° Partly Cloudy 7%

0% Thunder
( 24% severe)
SE   2 94% 74°

Partly Cloudy



SAINT CLAIR, MO 63077 weather forecast Day 1, 9 hours 10 AM 84° 93° Partly Cloudy SE   3 77% 76°
SAINT CLAIR, MO 63077 weather forecast Day 1, 12 hours 1 PM 90° 103° Partly Cloudy 17%
RAIN
1–2 in
0% Thunder
( 45% severe)
SE   6 66% 77°
SAINT CLAIR, MO 63077 weather forecast Day 1, 15 hours 4 PM 90° 102° Partly Cloudy ESE   6 64% 76°
SAINT CLAIR, MO 63077 weather forecast Day 1, 18 hours 7 PM 87° 98° Partly Cloudy 5%

0% Thunder
( 24% severe)
SE   6 70% 76°
SAINT CLAIR, MO 63077 weather forecast Day 1, 21 hours 10 PM 81° 87° Mostly Cloudy SE   3 85% 76°
Wednesday
23 JUL 2025
SAINT CLAIR, MO 63077 weather forecast Day 2, 0 hours 1 AM 78° 81° Partly Cloudy 8%

0% Thunder
( 20% severe)
SSE   3 91% 75°
Low 75° SAINT CLAIR, MO 63077 weather forecast Day 2, 3 hours 4 AM 77° 78° Partly Cloudy S   2 90% 74°
High 97° SAINT CLAIR, MO 63077 weather forecast Day 2, 6 hours 7 AM 78° 80° Partly Cloudy 2%

0% Thunder
( 13% severe)
S   2 88% 74°

Partly Cloudy



SAINT CLAIR, MO 63077 weather forecast Day 2, 9 hours 10 AM 87° 98° Partly Cloudy SSW   5 70% 76°
SAINT CLAIR, MO 63077 weather forecast Day 2, 12 hours 1 PM 94° 105° Partly Cloudy 3%

0% Thunder
( 13% severe)
SSW   6 53% 74°
SAINT CLAIR, MO 63077 weather forecast Day 2, 15 hours 4 PM 94° 102° Partly Cloudy S   6 49% 72°
SAINT CLAIR, MO 63077 weather forecast Day 2, 18 hours 7 PM 91° 102° Clear 1%

0% Thunder
( 13% severe)
SSE   5 60% 75°
SAINT CLAIR, MO 63077 weather forecast Day 2, 21 hours 10 PM 83° 90° Clear SSE   3 77% 75°

SPIRIT OF ST. LOUIS, MO extended weather forecast

BAD DAY
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Low 75° Low 74° Low 71° Low 73° Low 75°
High 98° High 96° High 94° High 94° High 96°
SAINT CLAIR, MO 63077 weather forecast Day 3 SAINT CLAIR, MO 63077 weather forecast Day 4 SAINT CLAIR, MO 63077 weather forecast Day 5 SAINT CLAIR, MO 63077 weather forecast Day 6 SAINT CLAIR, MO 63077 weather forecast Day 7
Partly Cloudy
34% Rain
Partly Cloudy
57% Rain
Partly Cloudy
43% Rain
Partly Cloudy
48% Rain
Partly Cloudy
27% Rain
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