Florissant, MO Weather Forecast
St. Louis County, Missouri
Live radar, warnings and storm tracking for Florissant, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Florissant
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Florissant, MO at a glance
Florissant is home to about 51,128 people in St. Louis County, across 13 square miles. It ranks 13th by population of 211 places in Missouri with a forecast here. The nearest neighbour with its own forecast is Black Jack, 3 miles away.
- County
- St. Louis County
- Population
- 51,128 2023 est.
- Land area
- 13 sq mi
- People per sq mi
- 4,073
- Forecast point
- 38.7997°N, 90.3271°W
How well can the network see Florissant?
The nearest Doppler radar is KLSX (St. Louis, MO), to the WSW. Its lowest scan passes about 1,100 ft above Florissant. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Florissant show up clearly. Florissant is closer to its radar than 84% of US cities.
The closest weather station is KSTL (St Louis/Lambert Intl). Close enough that its readings are the conditions in town.
Forecasts near Florissant
- Black Jack, MO3 mi
- Berkeley, MO4 mi
- Hazelwood, MO4 mi
- Ferguson, MO4 mi
- Dellwood, MO4 mi
- Bridgeton, MO5 mi
- Woodson Terrace, MO5 mi
- St. John, MO6 mi
Elsewhere in Missouri
Kansas CitySt. LouisSpringfieldColumbiaIndependenceLee's SummitAll Missouri forecasts →

