Florissant, MO Weather Forecast
Local 7-day forecast
Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Florissant, MO in one place.
Clear, with a low around 56. Southeast wind around 5 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: Oct 9, 2026 4:31 AM CDT.
The active forecast window currently covers Oct 9 to Oct 15, 2026 for Florissant, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 9 to Oct 15, 2026
- Latest sync
- Oct 9, 2026 4:31 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Florissant
Columbus Day looks like the warmest upcoming period in Florissant at 94 degrees F.
Overnight is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Thursday at about 13 mph SW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 9, 2026 4:31 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
Sunny, with a high near 90. South wind 5 to 10 mph.
Mostly clear, with a low around 62. Southeast wind 5 to 8 mph.
Mostly cloudy, with a high near 82. Southeast wind 5 to 8 mph.
Mostly cloudy, with a low around 59. East wind 3 to 8 mph.
Sunny, with a high near 83.
Mostly clear, with a low around 63.
Sunny, with a high near 94.
Mostly clear, with a low around 70.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 90. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Mostly clear, with a low around 65. Chance of precipitation is 20%.
A chance of rain showers. Mostly sunny, with a high near 84. Chance of precipitation is 50%.
A chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 9
|
Clear
|
56°F |
5 mph
SE
|
|
Friday
Oct 9
|
Sunny
|
90°F |
5 to 10 mph
S
|
|
Friday Night
Oct 9
|
Mostly Clear
|
62°F |
5 to 8 mph
SE
|
|
Saturday
Oct 10
|
Mostly Cloudy
|
82°F |
5 to 8 mph
SE
|
|
Saturday Night
Oct 10
|
Mostly Cloudy
|
59°F |
3 to 8 mph
E
|
|
Sunday
Oct 11
|
Sunny
|
83°F |
5 mph
NW
|
|
Sunday Night
Oct 11
|
Mostly Clear
|
63°F |
0 to 5 mph
S
|
|
Columbus Day
Oct 12
|
Sunny
|
94°F |
5 to 10 mph
SW
|
|
Monday Night
Oct 12
|
Mostly Clear
|
70°F |
8 mph
SW
|
|
Tuesday
Oct 13
|
Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
7 to 10 mph
W
|
|
Tuesday Night
Oct 13
|
Slight Chance Showers And Thunderstorms
|
65°F |
7 mph
NE
|
|
Wednesday
Oct 14
|
Chance Rain Showers
|
84°F |
10 mph
SE
|
|
Wednesday Night
Oct 14
|
Chance Showers And Thunderstorms
|
67°F |
10 mph
S
|
|
Thursday
Oct 15
|
Chance Rain Showers
|
83°F |
13 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Florissant.
