Saint Louis County, MO Weather Forecast
County weather hub
Rain Showers Likely
Compare major city weather across Saint Louis County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Rain showers likely before 1pm, then showers and thunderstorms likely. Cloudy. High near 71, with temperatures falling to around 67 in the afternoon. West wind around 8 mph. Chance of precipitation is 70%.
County Weather Overview
This county weather page brings together forecast coverage for Saint Louis County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 60 of 62 mapped cities in Saint Louis County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 12:38 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Louis County
Monday looks like the warmest upcoming period in Saint Louis County at 85 degrees F.
Friday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Sunday at about 8 to 15 mph S.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 12:38 PM CDT
- Coverage
- 6 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 chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Northeast wind 3 to 7 mph. Chance of precipitation is 40%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 76. Southeast wind around 7 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
A chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 50%.
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Rain Showers Likely
|
71°F |
8 mph
W
|
|
Friday Night
Apr 10
|
Chance Showers And Thunderstorms
|
52°F |
3 to 7 mph
NE
|
|
Saturday
Apr 11
|
Chance Rain Showers
|
76°F |
7 mph
SE
|
|
Saturday Night
Apr 11
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
62°F |
8 mph
S
|
|
Sunday
Apr 12
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
81°F |
8 to 15 mph
S
|
|
Sunday Night
Apr 12
|
Chance Showers And Thunderstorms
|
66°F |
14 mph
S
|
|
Monday
Apr 13
|
Chance Showers And Thunderstorms
|
85°F |
12 to 15 mph
SW
|
|
Monday Night
Apr 13
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
68°F |
13 mph
S
|
|
Tuesday
Apr 14
|
Chance Showers And Thunderstorms
|
84°F |
10 to 14 mph
S
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
62°F |
13 mph
S
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
76°F |
12 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
55°F |
6 to 10 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Saint Louis County.
Coverage
Forecast coverage currently spans 60 of 62 mapped cities in Saint Louis County.
Largest mapped city population in this region: 90,070.
