Grattan, MI Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Grattan, MI in one place.
Showers and thunderstorms. Mostly cloudy, with a high near 60. Chance of precipitation is 90%.
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: Apr 15, 2026 9:50 PM EDT.
The active forecast window currently covers Apr 18 to Apr 22, 2026 for Grattan, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 18 to Apr 22, 2026
- Latest sync
- Apr 15, 2026 9:50 PM EDT
- Forecast office
- GRR
- Source
- NOAA / NWS
Daily Outlook
This Week in Grattan
Tuesday looks like the warmest upcoming period in Grattan at 64 degrees F.
Sunday Night is the coolest period ahead with temperatures near 26 degrees F.
The strongest winds are forecast for Sunday at about 13 to 20 mph WNW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 9:50 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 before 8pm. Partly cloudy, with a low around 32.
Mostly sunny, with a high near 44.
Partly cloudy, with a low around 26.
Sunny, with a high near 52.
Partly cloudy, with a low around 38.
Mostly sunny, with a high near 64.
A slight chance of rain showers after 2am. Partly cloudy, with a low around 43.
A slight chance of rain showers before 8am. Mostly sunny, with a high near 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 18
|
Showers And Thunderstorms
|
60°F |
14 to 18 mph
SW
|
|
Saturday Night
Apr 18
|
Chance Rain Showers then Partly Cloudy
|
32°F |
13 to 17 mph
W
|
|
Sunday
Apr 19
|
Mostly Sunny
|
44°F |
13 to 20 mph
WNW
|
|
Sunday Night
Apr 19
|
Partly Cloudy
|
26°F |
6 to 16 mph
NW
|
|
Monday
Apr 20
|
Sunny
|
52°F |
6 to 12 mph
WNW
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
38°F |
8 to 12 mph
SSW
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
64°F |
12 to 18 mph
SW
|
|
Tuesday Night
Apr 21
|
Partly Cloudy then Slight Chance Rain Showers
|
43°F |
9 to 15 mph
W
|
|
Wednesday
Apr 22
|
Slight Chance Rain Showers then Mostly Sunny
|
63°F |
8 to 12 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grattan.