Florissant, MO Weather Forecast
Local 7-day forecast
Mostly Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Florissant, MO in one place.
Mostly clear, with a low around 73. Southeast wind around 2 mph.
Local Weather Overview
This forecast page for Florissant, MO is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 9, 2026 5:53 AM CDT.
The active forecast window currently covers Jul 9 to Jul 15, 2026 for Florissant, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 9 to Jul 15, 2026
- Latest sync
- Jul 9, 2026 5:53 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Florissant
Thursday looks like the warmest upcoming period in Florissant at 93 degrees F.
Saturday Night is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Thursday at about 3 to 8 mph SW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 9, 2026 5:53 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of rain showers between noon and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 93. Heat index values as high as 102. Southwest wind 3 to 8 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Southwest wind around 7 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Partly sunny, with a high near 89. West wind around 7 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 72. East wind 2 to 7 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly sunny, with a high near 87. Chance of precipitation is 60%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 40%.
A slight chance of rain showers. Sunny, with a high near 88. Chance of precipitation is 20%.
A slight chance of rain showers before 7pm. Mostly clear, with a low around 70. Chance of precipitation is 20%.
Sunny, with a high near 90.
Mostly clear, with a low around 72.
Sunny, with a high near 92.
Mostly clear, with a low around 74.
Sunny, with a high near 93.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 9
|
Mostly Clear
|
73°F |
2 mph
SE
|
|
Thursday
Jul 9
|
Partly Sunny then Chance Showers And Thunderstorms
|
93°F |
3 to 8 mph
SW
|
|
Thursday Night
Jul 9
|
Chance Showers And Thunderstorms
|
74°F |
7 mph
SW
|
|
Friday
Jul 10
|
Chance Showers And Thunderstorms
|
89°F |
7 mph
W
|
|
Friday Night
Jul 10
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
72°F |
2 to 7 mph
E
|
|
Saturday
Jul 11
|
Showers And Thunderstorms Likely
|
87°F |
3 to 8 mph
NW
|
|
Saturday Night
Jul 11
|
Chance Showers And Thunderstorms
|
70°F |
3 to 8 mph
NE
|
|
Sunday
Jul 12
|
Slight Chance Rain Showers
|
88°F |
3 to 8 mph
NE
|
|
Sunday Night
Jul 12
|
Slight Chance Rain Showers then Mostly Clear
|
70°F |
2 to 8 mph
NE
|
|
Monday
Jul 13
|
Sunny
|
90°F |
3 to 8 mph
NE
|
|
Monday Night
Jul 13
|
Mostly Clear
|
72°F |
1 to 8 mph
E
|
|
Tuesday
Jul 14
|
Sunny
|
92°F |
2 to 6 mph
NE
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
74°F |
2 to 6 mph
SE
|
|
Wednesday
Jul 15
|
Sunny
|
93°F |
2 to 6 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Florissant.
