Hazardous Weather Conditions
Current conditions at
St Clair County International Airport (KPHN)
Lat: 42.91°NLon: 82.53°WElev: 636ft.
Overcast
37°F
3°C
| Humidity | 81% |
| Wind Speed | N 7 mph |
| Barometer | 29.90 in |
| Dewpoint | 32°F (0°C) |
| Visibility | 10.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 10 Mar 9:55 pm EDT |
Extended Forecast for
Casco MI
Severe T-storm Watch until March 11, 03:00am
NOW until 3:00am Wed
Severe T-storm Watch
Tonight
Low: 42 °F⇑
Chance
T-storms then
RainWednesday

High: 53 °F
Rain
Wednesday Night

Low: 28 °F
Mostly Cloudy
and BlusteryThursday

High: 41 °F
Mostly Sunny
Thursday Night
Low: 31 °F
Partly Cloudy
then Chance
Rain/SnowFriday
High: 43 °F
Breezy. Rain
Likely then
Rain/Snow
LikelyFriday Night
Low: 26 °F
Chance
Rain/Snow and
Breezy then
Partly CloudySaturday

High: 38 °F
Partly Sunny
Detailed Forecast
Tonight
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 2am. Temperature rising to around 48 by 5am. Northeast wind 5 to 8 mph becoming southeast after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Rain and possibly a thunderstorm before 4pm, then a chance of rain. High near 53. Southeast wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 28. Blustery, with a west northwest wind around 18 mph, with gusts as high as 31 mph.
Thursday
Mostly sunny, with a high near 41. West northwest wind around 14 mph, with gusts as high as 22 mph.
Thursday Night
A chance of rain and snow after 2am. Mostly cloudy, with a low around 31. West wind 5 to 9 mph becoming south southeast after midnight. Chance of precipitation is 50%.
Friday
Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 43. Breezy. Chance of precipitation is 70%.
Friday Night
A chance of rain and snow before 8pm. Partly cloudy, with a low around 26. Breezy. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 38.
Saturday Night
A chance of snow between 8pm and 2am, then rain and snow likely. Mostly cloudy, with a low around 31.
Sunday
Rain and snow likely before 2pm, then rain. Cloudy, with a high near 46.
Sunday Night
Rain and snow. Mostly cloudy, with a low around 22.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 28. Blustery.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Mostly sunny, with a high near 27.
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ABOUT THIS FORECAST
Point Forecast:
Casco MI
42.74°N 82.67°W (Elev. 630 ft)
42.74°N 82.67°W (Elev. 630 ft)
8:24 pm EDT Mar 10, 2026
10pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026



