Decatur, MI Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Decatur, MI in one place.
Rain showers before 7am, then rain showers and patchy fog between 7am and 11am, then showers and thunderstorms likely between 11am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. South southwest wind 8 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
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: Jun 8, 2026 6:22 PM EDT.
The active forecast window currently covers Jun 9 to Jun 14, 2026 for Decatur, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 6:22 PM EDT
- Forecast office
- GRR
- Source
- NOAA / NWS
Daily Outlook
This Week in Decatur
Wednesday looks like the warmest upcoming period in Decatur at 91 degrees F.
Sunday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Wednesday at about 2 to 15 mph SW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 6:22 PM EDT
- Coverage
- 6 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
A chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 64. West wind 1 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 2pm. Partly sunny, with a high near 91. Southwest wind 2 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms between 8pm and 2am, then showers and thunderstorms likely. Partly cloudy, with a low around 69. Chance of precipitation is 70%.
Showers and thunderstorms likely. Partly sunny, with a high near 88.
Showers and thunderstorms. Mostly cloudy, with a low around 60.
Showers and thunderstorms likely before 8am. Mostly sunny, with a high near 79.
Mostly clear, with a low around 59.
Sunny, with a high near 83.
A chance of showers and thunderstorms between 8pm and 2am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 58.
A chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 76.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Showers And Thunderstorms Likely
|
83°F |
8 to 12 mph
SSW
|
|
Tuesday Night
Jun 9
|
Partly Cloudy then Chance Showers And Thunderstorms
|
64°F |
1 to 10 mph
W
|
|
Wednesday
Jun 10
|
Chance Showers And Thunderstorms
|
91°F |
2 to 15 mph
SW
|
|
Wednesday Night
Jun 10
|
Chance Showers And Thunderstorms
|
69°F |
12 to 15 mph
SW
|
|
Thursday
Jun 11
|
Showers And Thunderstorms Likely
|
88°F |
10 to 15 mph
SW
|
|
Thursday Night
Jun 11
|
Showers And Thunderstorms
|
60°F |
10 to 15 mph
SW
|
|
Friday
Jun 12
|
Showers And Thunderstorms Likely then Mostly Sunny
|
79°F |
7 to 14 mph
W
|
|
Friday Night
Jun 12
|
Mostly Clear
|
59°F |
5 to 12 mph
WSW
|
|
Saturday
Jun 13
|
Sunny
|
83°F |
5 to 14 mph
WSW
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
58°F |
3 to 12 mph
WSW
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
76°F |
3 to 12 mph
WNW
|
|
Sunday Night
Jun 14
|
Slight Chance Showers And Thunderstorms
|
53°F |
3 to 10 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Decatur.