FLORISSANT, MO 63031 Weather Forecast & Current Conditions

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ST. LOUIS, MO
Current Weather

2:51 AM CDT JUN 9, 2026
Overcast
79°F
Feels Like: 82°F
Dewpoint: 72°F
Rel. Hum.: 79%
Visibility: 10 miles
Wind: SW at 12 mph
Pressure: 29.98 inches
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FLORISSANT, MO 63031
Weather Forecast

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REST OF TONIGHT
Mostly cloudy with a slight chance of showers and thunderstorms. Some thunderstorms may produce heavy rainfall. Near steady temperature in the lower 70s. Southwest winds around 5 mph. Chance of rain 20 percent.
TUESDAY
Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Humid with highs around 90. Southwest winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 107 in the afternoon.
TUESDAY NIGHT
Mostly clear. Humid with lows in the mid 70s. Southwest winds 5 to 10 mph. Heat index values up to 107 early in the evening.
WEDNESDAY
Sunny with highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 104.
WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. A slight chance of thunderstorms in the evening. A slight chance of showers. Lows in the mid 70s. South winds 10 to 15 mph. Chance of rain 20 percent. Heat index values up to 103 early in the evening.
THURSDAY
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 90s. Chance of rain 50 percent. Heat index values up to 105.
THURSDAY NIGHT
Showers with a chance of thunderstorms in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 80 percent. Heat index values up to 100 early in the evening.
FRIDAY
Mostly sunny. Highs in the mid 80s.
FRIDAY NIGHT
Mostly clear. A slight chance of showers after midnight. Lows in the mid 60s. Chance of rain 20 percent.
SATURDAY
Mostly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 20 percent.
SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 50 percent.
SUNDAY
Partly 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 50 percent.
SUNDAY NIGHT
A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 40 percent.

Visible Weather Satellite
FLORISSANT, MO 63031
Infrared Weather Satellite
FLORISSANT, MO 63031
NEXRAD Weather Radar
FLORISSANT, MO 63031

ST. LOUIS, MO 3 hourly weather forecast

weather forecast created  7:00 PM CDT  6/ 8/2026
Tuesday
9 JUN 2026
FLORISSANT, MO 63031 weather forecast Day 1, 0 hours 1 AM 75° 75° Mostly Cloudy 64%
RAIN
***
0% Thunder
( 23% severe)
SSW   6 90% 72°
Low 73° FLORISSANT, MO 63031 weather forecast Day 1, 3 hours 4 AM 74° 74° Mostly Cloudy SSW   6 90% 71°
High 91° FLORISSANT, MO 63031 weather forecast Day 1, 6 hours 7 AM 75° 75° Mostly Cloudy 25%
RAIN
.25–.5 in
0% Thunder
( 32% severe)
SSW   7 90% 72°

Mostly Cloudy

Chance of Rain

FLORISSANT, MO 63031 weather forecast Day 1, 9 hours 10 AM 81° 86° Mostly Cloudy WSW   10 79% 74°
FLORISSANT, MO 63031 weather forecast Day 1, 12 hours 1 PM 87° 98° Mostly Cloudy 21%
RAIN
<.01 in
0% Thunder
( 41% severe)
SW   10 70% 76°
FLORISSANT, MO 63031 weather forecast Day 1, 15 hours 4 PM 91° 103° Partly Cloudy SW   12 62% 76°
FLORISSANT, MO 63031 weather forecast Day 1, 18 hours 7 PM 90° 103° Partly Cloudy 3%

0% Thunder
( 17% severe)
SSW   8 66% 77°
FLORISSANT, MO 63031 weather forecast Day 1, 21 hours 10 PM 83° 90° Partly Cloudy S   8 77% 75°
Wednesday
10 JUN 2026
FLORISSANT, MO 63031 weather forecast Day 2, 0 hours 1 AM 81° 86° Clear 2%

0% Thunder
( 8% severe)
SSW   8 77% 73°
Low 75° FLORISSANT, MO 63031 weather forecast Day 2, 3 hours 4 AM 78° 80° Clear SSW   9 76% 70°
High 93° FLORISSANT, MO 63031 weather forecast Day 2, 6 hours 7 AM 77° 79° Partly Cloudy 0%

0% Thunder
( 9% severe)
SSW   9 79% 70°

Partly Cloudy



FLORISSANT, MO 63031 weather forecast Day 2, 9 hours 10 AM 84° 90° Partly Cloudy SSW   13 67% 72°
FLORISSANT, MO 63031 weather forecast Day 2, 12 hours 1 PM 91° 99° Clear 3%

0% Thunder
( 36% severe)
SSW   14 54% 72°
FLORISSANT, MO 63031 weather forecast Day 2, 15 hours 4 PM 93° 100° Partly Cloudy SSW   15 49% 71°
FLORISSANT, MO 63031 weather forecast Day 2, 18 hours 7 PM 91° 98° Clear 11%
RAIN
<.01 in
0% Thunder
( 26% severe)
SSW   14 52% 71°
FLORISSANT, MO 63031 weather forecast Day 2, 21 hours 10 PM 85° 90° Partly Cloudy SSW   12 61% 70°

ST. LOUIS, MO extended weather forecast

Thursday
11 JUN 2026
Friday
12 JUN 2026
Saturday
13 JUN 2026
Sunday
14 JUN 2026
Monday
15 JUN 2026
Low 78° Low 64° Low 66° Low 70° Low 66°
High 97° High 86° High 87° High 80° High 79°
FLORISSANT, MO 63031 weather forecast Day 3 FLORISSANT, MO 63031 weather forecast Day 4 FLORISSANT, MO 63031 weather forecast Day 5 FLORISSANT, MO 63031 weather forecast Day 6 FLORISSANT, MO 63031 weather forecast Day 7
Partly Cloudy
33% Rain
Partly Cloudy
63% Rain
Partly Cloudy
17% Rain
Overcast
61% Rain
Overcast
44% Rain
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