Grattan, MI Weather Forecast
Local 7-day forecast
Patchy Fog
Track current conditions, temperature changes, wind, and the full daily outlook for Grattan, MI in one place.
A chance of rain showers before 7am, then rain showers likely and patchy fog between 7am and 8am, then patchy fog and showers and thunderstorms between 8am and 3pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
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: Jun 8, 2026 7:27 PM EDT.
The active forecast window currently covers Jun 9 to Jun 14, 2026 for Grattan, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 7:27 PM EDT
- Forecast office
- GRR
- Source
- NOAA / NWS
Daily Outlook
This Week in Grattan
Wednesday looks like the warmest upcoming period in Grattan at 88 degrees F.
Sunday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Friday at about 10 to 18 mph W.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 7:27 PM EDT
- Coverage
- 6 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
Mostly cloudy, with a low around 63. West wind 5 to 13 mph, with gusts as high as 24 mph. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers between 7am and 2pm. Partly sunny, with a high near 88. West southwest wind 3 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Showers and thunderstorms after 8pm. Partly cloudy, with a low around 69. Chance of precipitation is 80%.
Showers and thunderstorms before 8am, then a chance of showers and thunderstorms. Partly sunny, with a high near 87.
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms. Mostly cloudy, with a low around 60.
A chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 77.
Mostly clear, with a low around 59.
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 79.
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 57.
A chance of showers and thunderstorms. Mostly sunny, with a high near 74.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 52.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Patchy Fog
|
81°F |
7 to 14 mph
S
|
|
Tuesday Night
Jun 9
|
Mostly Cloudy
|
63°F |
5 to 13 mph
W
|
|
Wednesday
Jun 10
|
Slight Chance Rain Showers
|
88°F |
3 to 16 mph
WSW
|
|
Wednesday Night
Jun 10
|
Showers And Thunderstorms
|
69°F |
15 mph
SW
|
|
Thursday
Jun 11
|
Showers And Thunderstorms then Chance Showers And Thunderstorms
|
87°F |
14 mph
SW
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
60°F |
13 to 16 mph
SW
|
|
Friday
Jun 12
|
Chance Showers And Thunderstorms then Mostly Sunny
|
77°F |
10 to 18 mph
W
|
|
Friday Night
Jun 12
|
Mostly Clear
|
59°F |
8 to 16 mph
WSW
|
|
Saturday
Jun 13
|
Sunny then Slight Chance Showers And Thunderstorms
|
79°F |
8 to 18 mph
WSW
|
|
Saturday Night
Jun 13
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
57°F |
6 to 16 mph
WSW
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
74°F |
7 to 14 mph
WNW
|
|
Sunday Night
Jun 14
|
Slight Chance Showers And Thunderstorms
|
52°F |
6 to 14 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grattan.