Saint Clair County, MO Weather Forecast
County weather hub
Sunny
Compare major city weather across Saint Clair County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 90.
County Weather Overview
This county weather page brings together forecast coverage for Saint Clair County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Saint Clair County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 14 to Jul 15, 2026
- Latest sync
- Jul 9, 2026 7:44 AM CDT
- Forecast office
- SGF
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Clair County
Wednesday looks like the warmest upcoming period in Saint Clair County at 91 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Tuesday at about 3 mph E.
The forecast from Jul 14 through Jul 15 stays mostly dry.
Forecast Details
- Last updated
- Jul 9, 2026 7:44 AM CDT
- Coverage
- 2 days
- Time zone
- America/Chicago
- Forecast office
- SGF
- Radar station
- KSGF
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 70.
Sunny, with a high near 91.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
90°F |
3 mph
E
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
70°F |
2 mph
SE
|
|
Wednesday
Jul 15
|
Sunny
|
91°F |
2 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Saint Clair County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Saint Clair County.
Largest mapped city population in this region: 1,080.
