Grattan, MI Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grattan, MI in one place.
Sunny, with a high near 82. North northeast wind around 6 mph.
Local Weather Overview
This forecast page for Grattan, 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: Aug 3, 2026 12:24 AM EDT.
The active forecast window currently covers Aug 3 to Aug 9, 2026 for Grattan, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 3 to Aug 9, 2026
- Latest sync
- Aug 3, 2026 12:24 AM EDT
- Forecast office
- GRR
- Source
- NOAA / NWS
Daily Outlook
This Week in Grattan
Saturday looks like the warmest upcoming period in Grattan at 85 degrees F.
Monday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Sunday at about 7 to 16 mph SW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 3, 2026 12:24 AM EDT
- Coverage
- 7 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
Clear. Low around 53, with temperatures rising to around 55 overnight. West wind around 5 mph.
Sunny, with a high near 84. South southwest wind 3 to 12 mph, with gusts as high as 22 mph.
Mostly clear, with a low around 60. Southwest wind 3 to 10 mph, with gusts as high as 21 mph.
A slight chance of rain showers between 8am and 2pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 81.
A slight chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 59.
Showers and thunderstorms likely. Partly sunny, with a high near 79.
A chance of rain showers before 8pm. Partly cloudy, with a low around 58.
Mostly sunny, with a high near 83.
Partly cloudy, with a low around 61.
A slight chance of rain showers between 8am and 2pm. Mostly sunny, with a high near 85.
A slight chance of rain showers between 8pm and 2am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 63.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 3
|
Sunny
|
82°F |
6 mph
NNE
|
|
Monday Night
Aug 3
|
Clear
|
53°F |
5 mph
W
|
|
Tuesday
Aug 4
|
Sunny
|
84°F |
3 to 12 mph
SSW
|
|
Tuesday Night
Aug 4
|
Mostly Clear
|
60°F |
3 to 10 mph
SW
|
|
Wednesday
Aug 5
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
81°F |
6 to 13 mph
SW
|
|
Wednesday Night
Aug 5
|
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
59°F |
2 to 12 mph
W
|
|
Thursday
Aug 6
|
Showers And Thunderstorms Likely
|
79°F |
2 to 6 mph
WSW
|
|
Thursday Night
Aug 6
|
Chance Rain Showers then Partly Cloudy
|
58°F |
2 to 6 mph
NE
|
|
Friday
Aug 7
|
Mostly Sunny
|
83°F |
2 to 10 mph
SSW
|
|
Friday Night
Aug 7
|
Partly Cloudy
|
61°F |
3 to 10 mph
WSW
|
|
Saturday
Aug 8
|
Slight Chance Rain Showers
|
85°F |
5 to 13 mph
SW
|
|
Saturday Night
Aug 8
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
63°F |
6 to 12 mph
WSW
|
|
Sunday
Aug 9
|
Slight Chance Showers And Thunderstorms
|
85°F |
7 to 16 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grattan.