Decatur, MI Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Decatur, MI in one place.
Sunny, with a high near 73. North northeast wind around 6 mph.
Local Weather Overview
This forecast page for Decatur, 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 20, 2026 12:11 PM EDT.
The active forecast window currently covers Apr 22 to Apr 26, 2026 for Decatur, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 26, 2026
- Latest sync
- Apr 20, 2026 12:11 PM EDT
- Forecast office
- GRR
- Source
- NOAA / NWS
Daily Outlook
This Week in Decatur
Thursday looks like the warmest upcoming period in Decatur at 78 degrees F.
Saturday Night is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Thursday at about 7 to 14 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 20, 2026 12:11 PM EDT
- Coverage
- 5 days
- Time zone
- America/Detroit
- Forecast office
- GRR
- Radar station
- KIWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 53.
Mostly sunny, with a high near 78.
A chance of rain showers after 2am. Partly cloudy, with a low around 60.
Rain showers likely. Mostly cloudy, with a high near 74.
Rain showers likely before 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 47.
A chance of showers and thunderstorms. Partly sunny, with a high near 63.
A slight chance of rain showers. Mostly cloudy, with a low around 45.
A slight chance of rain showers. Partly sunny, with a high near 65.
A chance of rain showers. Partly cloudy, with a low around 47.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Sunny
|
73°F |
6 mph
NNE
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
53°F |
2 to 7 mph
E
|
|
Thursday
Apr 23
|
Mostly Sunny
|
78°F |
7 to 14 mph
S
|
|
Thursday Night
Apr 23
|
Partly Cloudy then Chance Rain Showers
|
60°F |
13 mph
S
|
|
Friday
Apr 24
|
Rain Showers Likely
|
74°F |
14 mph
SSW
|
|
Friday Night
Apr 24
|
Rain Showers Likely
|
47°F |
7 to 12 mph
W
|
|
Saturday
Apr 25
|
Chance Showers And Thunderstorms
|
63°F |
7 to 12 mph
NW
|
|
Saturday Night
Apr 25
|
Slight Chance Rain Showers
|
45°F |
6 to 10 mph
N
|
|
Sunday
Apr 26
|
Slight Chance Rain Showers
|
65°F |
6 to 10 mph
NNE
|
|
Sunday Night
Apr 26
|
Chance Rain Showers
|
47°F |
6 to 9 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Decatur.