Saint Clair County, MI Weather Forecast
County weather hub
Light Rain Likely
Compare major city weather across Saint Clair County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Rain likely. Mostly cloudy. High near 59, with temperatures falling to around 52 in the afternoon. West northwest wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
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 7 of 7 mapped cities in Saint Clair County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 16 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 7:31 PM EDT
- Forecast office
- DTX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Clair County
Tuesday looks like the warmest upcoming period in Saint Clair County at 68 degrees F.
Friday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Friday Night at about 13 to 20 mph NNW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 7:31 PM EDT
- Coverage
- 6 days
- Time zone
- America/Detroit
- Forecast office
- DTX
- Radar station
- KDTX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain before midnight. Partly cloudy, with a low around 33. North northwest wind 13 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 53. Northwest wind 7 to 13 mph, with gusts as high as 22 mph.
Clear, with a low around 35.
Sunny, with a high near 62.
Mostly clear, with a low around 39.
Sunny, with a high near 66.
Partly cloudy, with a low around 40.
Mostly sunny, with a high near 68.
Mostly clear, with a low around 41.
Sunny, with a high near 67.
Mostly clear, with a low around 42.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Oct 16
|
Light Rain Likely
|
59°F |
14 to 18 mph
WNW
|
|
Friday Night
Oct 16
|
Chance Light Rain then Partly Cloudy
|
33°F |
13 to 20 mph
NNW
|
|
Saturday
Oct 17
|
Sunny
|
53°F |
7 to 13 mph
NW
|
|
Saturday Night
Oct 17
|
Clear
|
35°F |
7 mph
WSW
|
|
Sunday
Oct 18
|
Sunny
|
62°F |
7 to 13 mph
SW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
39°F |
5 to 12 mph
SSW
|
|
Monday
Oct 19
|
Sunny
|
66°F |
5 to 8 mph
SW
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
40°F |
1 to 6 mph
WSW
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
68°F |
3 mph
NW
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
41°F |
3 mph
NNE
|
|
Wednesday
Oct 21
|
Sunny
|
67°F |
1 to 5 mph
NE
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
42°F |
5 mph
E
|
Major City Forecasts
Live forecast snapshots for major cities across Saint Clair County.
Coverage
Forecast coverage currently spans 7 of 7 mapped cities in Saint Clair County.
Largest mapped city population in this region: 28,631.
