Saint Louis County, MO Weather Forecast
County weather hub
Sunny
Compare major city weather across Saint Louis County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 88. South wind around 7 mph.
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 62 of 62 mapped cities in Saint Louis County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 9 to Oct 15, 2026
- Latest sync
- Oct 8, 2026 9:41 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Louis County
Columbus Day looks like the warmest upcoming period in Saint Louis County at 91 degrees F.
Saturday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Thursday at about 8 to 12 mph S.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 8, 2026 9:41 PM 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
Mostly clear, with a low around 62. Southeast wind around 7 mph.
Partly sunny. High near 83, with temperatures falling to around 79 in the afternoon. Southeast wind 5 to 8 mph.
A slight chance of rain after 7pm. Mostly cloudy, with a low around 60. East wind 5 to 8 mph. Chance of precipitation is 20%.
A slight chance of rain before 7am. Mostly sunny, with a high near 80. Chance of precipitation is 20%.
Mostly clear, with a low around 61.
Sunny, with a high near 91.
Mostly clear, with a low around 68.
Sunny, with a high near 85.
A slight chance of rain showers after 7pm. Partly cloudy, with a low around 62. Chance of precipitation is 20%.
A slight chance of rain showers. Mostly sunny, with a high near 81. Chance of precipitation is 20%.
A chance of rain showers. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Oct 9
|
Sunny
|
88°F |
7 mph
S
|
|
Friday Night
Oct 9
|
Mostly Clear
|
62°F |
7 mph
SE
|
|
Saturday
Oct 10
|
Partly Sunny
|
83°F |
5 to 8 mph
SE
|
|
Saturday Night
Oct 10
|
Slight Chance Light Rain
|
60°F |
5 to 8 mph
E
|
|
Sunday
Oct 11
|
Slight Chance Light Rain then Mostly Sunny
|
80°F |
5 mph
N
|
|
Sunday Night
Oct 11
|
Mostly Clear
|
61°F |
3 mph
S
|
|
Columbus Day
Oct 12
|
Sunny
|
91°F |
3 to 8 mph
SW
|
|
Monday Night
Oct 12
|
Mostly Clear
|
68°F |
6 to 9 mph
SW
|
|
Tuesday
Oct 13
|
Sunny
|
85°F |
9 mph
NW
|
|
Tuesday Night
Oct 13
|
Slight Chance Rain Showers
|
62°F |
6 mph
NE
|
|
Wednesday
Oct 14
|
Slight Chance Rain Showers
|
81°F |
7 mph
SE
|
|
Wednesday Night
Oct 14
|
Chance Rain Showers
|
64°F |
8 mph
S
|
|
Thursday
Oct 15
|
Chance Rain Showers
|
82°F |
8 to 12 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Saint Louis County.
Coverage
Forecast coverage currently spans 62 of 62 mapped cities in Saint Louis County.
Largest mapped city population in this region: 90,070.
