Mason County, MI Weather Forecast
County weather hub
Sunny
Compare major city weather across Mason County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 49. South wind 3 to 8 mph.
County Weather Overview
This county weather page brings together forecast coverage for Mason County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 2 mapped cities in Mason County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 11 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 3:47 PM EDT
- Forecast office
- GRR
- Source
- NOAA / NWS
Daily Outlook
This Week in Mason County
Monday looks like the warmest upcoming period in Mason County at 59 degrees F.
Saturday Night is the coolest period ahead with temperatures near 42 degrees F.
The strongest winds are forecast for Sunday Night at about 18 to 22 mph SSW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 3:47 PM EDT
- Coverage
- 5 days
- Time zone
- America/Detroit
- Forecast office
- GRR
- Radar station
- KGRR
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers between 8pm and 2am, then showers and thunderstorms likely. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.
Showers and thunderstorms likely before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 56.
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 49.
Rain showers likely before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 59.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers and thunderstorms. Mostly cloudy, with a low around 47.
Showers and thunderstorms. Mostly cloudy, with a high near 58.
Showers and thunderstorms. Mostly cloudy, with a low around 46.
Rain showers likely. Mostly cloudy, with a high near 54.
A chance of rain showers. Mostly cloudy, with a low around 42.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Sunny
|
49°F |
3 to 8 mph
S
|
|
Saturday Night
Apr 11
|
Showers And Thunderstorms Likely
|
42°F |
3 to 15 mph
SSE
|
|
Sunday
Apr 12
|
Showers And Thunderstorms Likely
|
56°F |
16 to 21 mph
S
|
|
Sunday Night
Apr 12
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
49°F |
18 to 22 mph
SSW
|
|
Monday
Apr 13
|
Rain Showers Likely
|
59°F |
13 to 17 mph
SSW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms
|
47°F |
14 mph
S
|
|
Tuesday
Apr 14
|
Showers And Thunderstorms
|
58°F |
14 mph
SSW
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms
|
46°F |
14 mph
SSE
|
|
Wednesday
Apr 15
|
Rain Showers Likely
|
54°F |
16 mph
SSW
|
|
Wednesday Night
Apr 15
|
Chance Rain Showers
|
42°F |
10 to 15 mph
SSW
|
Major City Forecasts
Live forecast snapshots for major cities across Mason County.
Coverage
Forecast coverage currently spans 1 of 2 mapped cities in Mason County.
Largest mapped city population in this region: 8,096.
