National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Rain

59°F

15°C

Humidity 88%
Wind Speed SE 5 mph
Barometer 29.93 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 22 Jun 3:15 am EDT
Extended Forecast for

3 Miles SE Fort Gratiot MI

  • Overnight

    Overnight: Showers. Steady temperature around 60. South wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 60 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before noon. Cloudy through mid morning, then gradual clearing, with a high near 68. East wind 7 to 13 mph becoming north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 68 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. North wind 7 to 10 mph.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. North wind 7 to 9 mph.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53. North northeast wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 58. Chance of precipitation is 80%.

    Low: 58 °F

    Chance
    Showers then
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. Partly sunny, with a high near 75.

    High: 75 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 57.

    Low: 57 °F

    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Showers. Steady temperature around 60. South wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers likely, mainly before noon. Cloudy through mid morning, then gradual clearing, with a high near 68. East wind 7 to 13 mph becoming north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Mostly clear, with a low around 53. North wind 7 to 10 mph.
Tuesday
Sunny, with a high near 69. North wind 7 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 53. North northeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 75.
Wednesday Night
A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 58. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. Partly sunny, with a high near 75.
Thursday Night
Showers and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Fort Gratiot MI
 43.03°N 82.45°W (Elev. 597 ft)
Last Update:
2:24 am EDT Jun 22, 2026
Forecast Valid:
3am EDT Jun 22, 2026-6pm EDT Jun 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation