Napoleon, MI Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Napoleon, MI in one place.
Mostly sunny, with a high near 82. South southwest wind 2 to 7 mph.
Local Weather Overview
This forecast page for Napoleon, 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 27, 2026 7:55 PM EDT.
The active forecast window currently covers Aug 29 to Sep 2, 2026 for Napoleon, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 2, 2026
- Latest sync
- Aug 27, 2026 7:55 PM EDT
- Forecast office
- GRR
- Source
- NOAA / NWS
Daily Outlook
This Week in Napoleon
Tuesday looks like the warmest upcoming period in Napoleon at 90 degrees F.
Saturday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Sunday at about 3 to 12 mph SSW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 7:55 PM EDT
- Coverage
- 5 days
- Time zone
- America/Detroit
- Forecast office
- GRR
- Radar station
- KDTX
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.
Partly sunny, with a high near 86.
A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 69.
A chance of showers and thunderstorms before 8am. Partly sunny, with a high near 88.
A slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72.
A slight chance of showers and thunderstorms. Partly sunny, with a high near 90.
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
A chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 88.
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Mostly Sunny
|
82°F |
2 to 7 mph
SSW
|
|
Saturday Night
Aug 29
|
Mostly Cloudy
|
63°F |
2 to 6 mph
SSW
|
|
Sunday
Aug 30
|
Partly Sunny
|
86°F |
3 to 12 mph
SSW
|
|
Sunday Night
Aug 30
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
69°F |
5 to 10 mph
SSW
|
|
Monday
Aug 31
|
Chance Showers And Thunderstorms then Partly Sunny
|
88°F |
8 to 12 mph
SW
|
|
Monday Night
Aug 31
|
Mostly Cloudy then Slight Chance Showers And Thunderstorms
|
72°F |
6 to 9 mph
SW
|
|
Tuesday
Sep 1
|
Slight Chance Showers And Thunderstorms
|
90°F |
6 to 10 mph
WSW
|
|
Tuesday Night
Sep 1
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
69°F |
3 to 9 mph
WSW
|
|
Wednesday
Sep 2
|
Chance Showers And Thunderstorms
|
88°F |
5 to 8 mph
WSW
|
|
Wednesday Night
Sep 2
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
66°F |
2 to 8 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Napoleon.