National Weather Service Forecast for: Portage MI
Issued by: National Weather Service Grand Rapids, MI
Updated: 7:03 am EDT May 26, 2026
 
Today

Today: Mostly sunny, with a high near 83. Calm wind becoming south southwest around 5 mph in the afternoon.
Mostly Sunny
 Tonight

Tonight: Mostly cloudy, with a low around 58. Calm wind.
Mostly Cloudy
 Wednesday

Wednesday: Mostly sunny, with a high near 84. Calm wind becoming west northwest around 6 mph in the afternoon.
Mostly Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 55. Northwest wind 5 to 7 mph becoming north northeast after midnight.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 75. Northeast wind around 9 mph, with gusts as high as 18 mph.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 49.
Mostly Clear
 Friday

Friday: Sunny, with a high near 77.
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 51.
Mostly Clear
 Saturday

Saturday: Sunny, with a high near 75.
Sunny
Hi 83 °F Lo 58 °F Hi 84 °F Lo 55 °F Hi 75 °F Lo 49 °F Hi 77 °F Lo 51 °F Hi 75 °F

 

Today
 
 Mostly sunny, with a high near 83. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
 
 Mostly cloudy, with a low around 58. Calm wind.
Wednesday
 
 Mostly sunny, with a high near 84. Calm wind becoming west northwest around 6 mph in the afternoon.
Wednesday Night
 
 Mostly clear, with a low around 55. Northwest wind 5 to 7 mph becoming north northeast after midnight.
Thursday
 
 Sunny, with a high near 75. Northeast wind around 9 mph, with gusts as high as 18 mph.
Thursday Night
 
 Mostly clear, with a low around 49.
Friday
 
 Sunny, with a high near 77.
Friday Night
 
 Mostly clear, with a low around 51.
Saturday
 
 Sunny, with a high near 75.
Saturday Night
 
 Mostly clear, with a low around 49.
Sunday
 
 Sunny, with a high near 75.
Sunday Night
 
 Mostly clear, with a low around 51.
Monday
 
 Sunny, with a high near 77.

 

Forecast from NOAA-NWS for Portage MI.