Napoleon, MI Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Napoleon, MI in one place.
A chance of rain showers after 2pm. Cloudy. High near 63, with temperatures falling to around 61 in the afternoon. East southeast wind around 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
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: Oct 15, 2026 3:05 PM EDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Napoleon, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 3:05 PM EDT
- Forecast office
- GRR
- Source
- NOAA / NWS
Daily Outlook
This Week in Napoleon
Tuesday looks like the warmest upcoming period in Napoleon at 69 degrees F.
Friday Night is the coolest period ahead with temperatures near 31 degrees F.
The strongest winds are forecast for Tonight at about 9 to 17 mph S.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 3:05 PM EDT
- Coverage
- 7 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
A chance of rain showers before 8pm, then showers and thunderstorms. Cloudy. Low around 50, with temperatures rising to around 60 overnight. South wind 9 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain showers. Mostly cloudy. High near 58, with temperatures falling to around 53 in the afternoon. West northwest wind 14 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 8pm. Mostly cloudy, with a low around 31. North northwest wind 9 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 54. Northwest wind 5 to 8 mph.
Clear, with a low around 34.
Sunny, with a high near 62.
Mostly clear, with a low around 37.
Sunny, with a high near 67.
Partly cloudy, with a low around 39.
Mostly sunny, with a high near 69.
Mostly clear, with a low around 41.
Sunny, with a high near 68.
Mostly clear, with a low around 42.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 15
|
Chance Rain Showers
|
63°F |
9 mph
ESE
|
|
Tonight
Oct 15
|
Showers And Thunderstorms
|
50°F |
9 to 17 mph
S
|
|
Friday
Oct 16
|
Rain Showers
|
58°F |
14 to 17 mph
WNW
|
|
Friday Night
Oct 16
|
Chance Rain Showers then Mostly Cloudy
|
31°F |
9 to 17 mph
NNW
|
|
Saturday
Oct 17
|
Sunny
|
54°F |
5 to 8 mph
NW
|
|
Saturday Night
Oct 17
|
Clear
|
34°F |
6 mph
WSW
|
|
Sunday
Oct 18
|
Sunny
|
62°F |
6 to 12 mph
SW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
37°F |
3 to 9 mph
SSW
|
|
Monday
Oct 19
|
Sunny
|
67°F |
6 mph
SW
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
39°F |
0 to 5 mph
WSW
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
69°F |
2 mph
NW
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
41°F |
2 mph
NNW
|
|
Wednesday
Oct 21
|
Sunny
|
68°F |
0 to 5 mph
ENE
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
42°F |
5 mph
ESE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Napoleon.