Portage, MI Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Portage, MI in one place.
A chance of rain showers between 10am and 11am, then a chance of showers and thunderstorms between 11am and 1pm, then a slight chance of showers and thunderstorms between 2pm and 3pm. Mostly sunny. High near 86, with temperatures falling to around 84 in the afternoon. West wind 7 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Portage, 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: Jul 17, 2026 12:28 PM EDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Portage, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 12:28 PM EDT
- Forecast office
- GRR
- Source
- NOAA / NWS
Daily Outlook
This Week in Portage
Saturday looks like the warmest upcoming period in Portage at 86 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Tuesday at about 12 to 17 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 12:28 PM EDT
- Coverage
- 6 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
Clear, with a low around 60. North wind 3 to 14 mph, with gusts as high as 28 mph.
Sunny, with a high near 82. Northeast wind around 5 mph.
Mostly clear, with a low around 60.
Mostly sunny, with a high near 84.
Showers and thunderstorms likely after 8pm. Partly cloudy, with a low around 67.
Showers and thunderstorms likely before 2pm. Mostly sunny, with a high near 82.
Mostly clear, with a low around 58.
Sunny, with a high near 77.
Mostly clear, with a low around 54.
Sunny, with a high near 78.
Mostly clear, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Chance Showers And Thunderstorms
|
86°F |
7 to 15 mph
W
|
|
Saturday Night
Jul 18
|
Clear
|
60°F |
3 to 14 mph
N
|
|
Sunday
Jul 19
|
Sunny
|
82°F |
5 mph
NE
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
60°F |
1 to 5 mph
WNW
|
|
Monday
Jul 20
|
Mostly Sunny
|
84°F |
3 to 12 mph
S
|
|
Monday Night
Jul 20
|
Showers And Thunderstorms Likely
|
67°F |
12 mph
SW
|
|
Tuesday
Jul 21
|
Showers And Thunderstorms Likely
|
82°F |
12 to 17 mph
W
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
58°F |
6 to 17 mph
NW
|
|
Wednesday
Jul 22
|
Sunny
|
77°F |
6 to 13 mph
NNW
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
54°F |
2 to 12 mph
NW
|
|
Thursday
Jul 23
|
Sunny
|
78°F |
2 to 6 mph
WNW
|
|
Thursday Night
Jul 23
|
Mostly Clear
|
56°F |
1 to 6 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portage.
