Current Conditions

Florissant, Missouri

65°F19°C
Partly Cloudy

Wind

NE 7 mph12 km/h

Humidity

68%

Cloud Cover

74%

As of Tuesday, September 22, 2026 at 9:02 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 61°F16°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Partly CloudyHigh 69°F20°CLow 59°F15°CPrecip 0.01 in0.2 mm3%Cloud 79%Wind NNE 7 mph11 km/hWednesday: Overcast and warm, with a high of 69°F20°C and morning low of 59°F15°C. Breezy from the NNE at 7 to 8 mph12 to 13 km/h. Wednesday Night: Mostly cloudy, with a low around 61°F16°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h.
CloudyHigh 71°F21°CLow 60°F15°CPrecip 0 in0 mmCloud 84%Wind NE 5 mph8 km/hThursday: Overcast and warm, with a high of 71°F21°C and morning low of 60°F15°C. Light wind from the NE around 5 mph8 km/h. Thursday Night: Mostly cloudy, with a low around 61°F16°C. Light wind from the NE around 4 mph7 km/h.
CloudyHigh 75°F24°CLow 62°F17°CPrecip 0.01 in0.3 mm4%Cloud 88%Wind ENE 4 mph7 km/hFriday: Overcast and warm, with a high of 75°F24°C and morning low of 62°F17°C. Light wind from the E around 4 mph7 km/h. Friday Night: Overcast, with a low around 62°F17°C. Light wind from the ENE around 4 mph7 km/h.
Light RainHigh 71°F22°CLow 62°F17°CPrecip 0.12 in3 mm45%Cloud 89%Wind ESE 5 mph8 km/hSaturday: Overcast and warm, with a high of 71°F22°C and morning low of 62°F17°C. Light wind from the ESE around 5 mph7 km/h. 45% chance of light rain throughout the day. Saturday Night: Overcast, with a low around 64°F18°C. Light wind from the E around 5 mph8 km/h. 37% chance of drizzle in the evening.
ShowersHigh 74°F23°CLow 61°F16°CPrecip 0.11 in2.8 mm39%Cloud 68%Wind E 4 mph7 km/hSunday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 61°F16°C. Light wind from the ESE around 4 mph7 km/h. 38% chance of light rain throughout the day. Sunday Night: Mostly cloudy, with a low around 62°F17°C. Light wind from the ENE around 5 mph8 km/h. 39% chance of showers throughout the night.
ClearHigh 79°F26°CLow 59°F15°CPrecip 0 in0.1 mm2%Cloud 37%Wind ENE 4 mph7 km/hMonday: Partly cloudy and warm, with a high of 79°F26°C and morning low of 59°F15°C. Light wind from the ENE around 4 mph6 km/h. Monday Night: Partly cloudy, with a low around 61°F16°C. Light wind from the ENE around 4 mph7 km/h.
Light RainHigh 80°F26°CLow 60°F15°CPrecip 0.15 in3.9 mm37%Cloud 73%Wind SSE 7 mph11 km/hTuesday: Mostly cloudy and warm, with a high of 80°F26°C and morning low of 60°F15°C. Breezy from the SSE at 7 to 8 mph11 to 13 km/h. 23% chance of light rain throughout the day. Tuesday Night: Mostly cloudy, with a low around 61°F16°C. Breezy from the SE at 6 to 8 mph10 to 13 km/h. 37% chance of light rain in the evening.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2369°F20°C59°F15°C0.01 in0.2 mm· 3%79%Partly CloudyNNE 7 mph11 km/h
ThursdaySep 2471°F21°C60°F15°C0 in0 mm· —84%CloudyNE 5 mph8 km/h
FridaySep 2575°F24°C62°F17°C0.01 in0.3 mm· 4%88%CloudyENE 4 mph7 km/h
SaturdaySep 2671°F22°C62°F17°C0.12 in3 mm· 45%89%Light RainESE 5 mph8 km/h
SundaySep 2774°F23°C61°F16°C0.11 in2.8 mm· 39%68%ShowersE 4 mph7 km/h
MondaySep 2879°F26°C59°F15°C0 in0.1 mm· 2%37%ClearENE 4 mph7 km/h
TuesdaySep 2980°F26°C60°F15°C0.15 in3.9 mm· 37%73%Light RainSSE 7 mph11 km/h
WednesdaySep 3074°F23°C64°F18°C0.41 in10.3 mm· 43%79%Light RainSW 8 mph13 km/h
ThursdayOct 173°F23°C60°F16°C0.26 in6.6 mm· 30%60%ShowersW 7 mph12 km/h
FridayOct 275°F24°C58°F14°C0.11 in2.9 mm· 18%54%ShowersW 7 mph11 km/h
SaturdayOct 374°F23°C59°F15°C0.15 in3.8 mm· 21%56%ShowersSW 7 mph11 km/h
SundayOct 473°F23°C58°F14°C0.11 in2.7 mm· 14%46%DrizzleW 7 mph12 km/h
MondayOct 572°F22°C55°F13°C0.08 in2 mm· 10%40%DrizzleW 7 mph11 km/h
TuesdayOct 673°F23°C54°F12°C0.08 in2.1 mm· 9%36%ClearW 7 mph11 km/h
WednesdayOct 773°F23°C53°F12°C0.08 in2 mm· 9%33%ClearWNW 6 mph10 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 38.7892°N, 90.3226°W·Elevation: 175m·Timezone: America/Chicago·Population: 52,268