Saint Clair, MI Weather Forecast

Local 7-day forecast

81°
F

Slight Chance T-storms

Track current conditions, temperature changes, wind, and the full daily outlook for Saint Clair, MI in one place.

Tuesday, October 13, 2026
Wind: 8 to 15 mph SW
Tuesday

A slight chance of thunderstorms and a slight chance of rain before 1pm. Sunny, with a high near 81. Southwest wind 8 to 15 mph, with gusts as high as 26 mph. New rainfall amounts less than a tenth of an inch possible.

Local 7-day forecast

Local Weather Overview

This forecast page for Saint Clair, MI 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 12, 2026 4:47 AM EDT.

The active forecast window currently covers Oct 13 to Oct 18, 2026 for Saint Clair, MI.

Page Snapshot

Page focus
city weather
Forecast window
Oct 13 to Oct 18, 2026
Latest sync
Oct 12, 2026 4:47 AM EDT
Forecast office
DTX
Source
NOAA / NWS
Next High
81°F
Tuesday
Next Low
57°F
Tuesday Night
Rain Outlook
7
Periods mentioning precipitation
Windiest
8 to 20 mph
Friday

Daily Outlook

Today
Oct 13
Slight Chance T-storms
81 °F
/ 57°F
Wind 8 to 15 mph
Wed
Oct 14
Chance Light Rain
67 °F
/ 49°F
Wind 1 to 8 mph
Thu
Oct 15
Chance Light Rain
65 °F
/ 49°F
Wind 3 to 7 mph
Fri
Oct 16
Chance Light Rain
60 °F
/ 35°F
Wind 8 to 20 mph
Sat
Oct 17
Mostly Sunny
51 °F
/ 35°F
Wind 8 to 14 mph
Sun
Oct 18
Sunny
58 °F
Wind 5 to 15 mph

This Week in Saint Clair

Tuesday looks like the warmest upcoming period in Saint Clair at 81 degrees F.

Friday Night is the coolest period ahead with temperatures near 35 degrees F.

The strongest winds are forecast for Friday at about 8 to 20 mph WNW.

Precipitation is mentioned in 7 upcoming forecast periods.

Forecast Details

Last updated
Oct 12, 2026 4:47 AM 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 source

Extended Forecast

Tuesday Night
Oct 13
57°F
Partly Cloudy then Chance Light Rain
1 to 12 mph NW

A chance of rain after 2am. Partly cloudy, with a low around 57. Northwest wind 1 to 12 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Wednesday
Oct 14
67°F
Chance Light Rain
1 to 8 mph N

A chance of rain before 2pm. Mostly cloudy, with a high near 67. Chance of precipitation is 30%.

Wednesday Night
Oct 14
49°F
Mostly Cloudy
3 to 8 mph NNE

Mostly cloudy, with a low around 49.

Thursday
Oct 15
65°F
Chance Light Rain
3 to 7 mph ENE

A chance of rain after 8am. Mostly cloudy, with a high near 65.

Thursday Night
Oct 15
49°F
Light Rain Likely
1 to 6 mph S

Rain likely. Mostly cloudy, with a low around 49.

Friday
Oct 16
60°F
Chance Light Rain
8 to 20 mph WNW

A chance of rain. Mostly cloudy, with a high near 60.

Friday Night
Oct 16
35°F
Slight Chance Light Rain
13 to 18 mph NW

A slight chance of rain before 2am. Mostly cloudy, with a low around 35.

Saturday
Oct 17
51°F
Mostly Sunny
8 to 14 mph NW

Mostly sunny, with a high near 51.

Saturday Night
Oct 17
35°F
Mostly Clear
2 to 7 mph WSW

Mostly clear, with a low around 35.

Sunday
Oct 18
58°F
Sunny
5 to 15 mph SW

Sunny, with a high near 58.

Detailed Forecast

Period Conditions Temp Wind
Tuesday
Oct 13
Slight Chance T-storms
81°F
8 to 15 mph
SW
Tuesday Night
Oct 13
Partly Cloudy then Chance Light Rain
57°F
1 to 12 mph
NW
Wednesday
Oct 14
Chance Light Rain
67°F
1 to 8 mph
N
Wednesday Night
Oct 14
Mostly Cloudy
49°F
3 to 8 mph
NNE
Thursday
Oct 15
Chance Light Rain
65°F
3 to 7 mph
ENE
Thursday Night
Oct 15
Light Rain Likely
49°F
1 to 6 mph
S
Friday
Oct 16
Chance Light Rain
60°F
8 to 20 mph
WNW
Friday Night
Oct 16
Slight Chance Light Rain
35°F
13 to 18 mph
NW
Saturday
Oct 17
Mostly Sunny
51°F
8 to 14 mph
NW
Saturday Night
Oct 17
Mostly Clear
35°F
2 to 7 mph
WSW
Sunday
Oct 18
Sunny
58°F
5 to 15 mph
SW
Fort Gratiot Lighthouse 4
Fort Gratiot Lighthouse 4 image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.