Florissant, Missouri Weather Forecast

St. Louis County 38.80°N, 90.33°W Pop. 50,952

Florissant is in St. Louis County, Missouri. This page has current conditions, radar, a 7-day forecast, observed rainfall and the NWS written forecast for the area.

Active Weather Alerts

7-Day Forecast for Florissant

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Hourly charts, 15-day outlook and more for Florissant in Local Wx →

Growing Conditions

Growing degree days

4,496

since Apr 1, base 50°F

Rain, last 30 days

1.06 in

model analysis

Rain, year to date

49.16 in

since Jan 1

2-inch soil temperature

62°F

yesterday, daily average

Reference ET, last 7 days

0.71 in

FAO-56 grass reference

Through Oct 23. Season totals use model analysis for this point and update every morning. Soil, ET and spray tools for Florissant →

Current Stats & Observations

NWS Forecast

About Florissant Weather

Florissant sits at about 528 feet above sea level in St. Louis County, Missouri. About 50,952 people live in the Florissant area. Official forecasts and warnings for the area come from the National Weather Service LSX office, and the nearest NEXRAD radar site is KLSX. The city is in USDA plant hardiness zone 7a, where the coldest winter night typically falls between 0 to 5°F. Over the past ten years the last spring freeze has come around Apr 15 and the first fall freeze around Nov 4.

Nearby Forecasts

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Largest Cities in Missouri

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All Missouri forecasts (15) → All states → Interactive forecast tools →