National Weather Service Forecast for: Portage MI
Issued by: National Weather Service Grand Rapids, MI
Updated: 1:03 pm EDT Jul 16, 2026
 
This
Afternoon
This Afternoon: Widespread smoke. Mostly sunny and hot, with a high near 91. North northeast wind 3 to 5 mph.
Smoke

 Tonight

Tonight: Widespread smoke. Partly cloudy, with a low around 68. Light and variable wind.
Smoke

 Friday

Friday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. South southeast wind 5 to 7 mph. Chance of precipitation is 30%.
Sunny then
Chance
T-storms
 Friday
Night
Friday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 71. South southwest wind 5 to 7 mph. Chance of precipitation is 30%.
Chance
T-storms then
Slight Chance
Showers
 Saturday

Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. West southwest wind 8 to 15 mph, with gusts as high as 29 mph.
Mostly Sunny
then Chance
T-storms
 Saturday
Night
Saturday Night: A 30 percent chance of showers before 8pm. Mostly clear, with a low around 61.
Chance
Showers then
Mostly Clear
 Sunday

Sunday: Sunny, with a high near 83.
Sunny

 Sunday
Night
Sunday Night: Mostly clear, with a low around 61.
Mostly Clear

 Monday

Monday: Mostly sunny, with a high near 84.
Mostly Sunny
Hi 91 °F Lo 68 °F Hi 89 °F Lo 71 °F Hi 88 °F Lo 61 °F Hi 83 °F Lo 61 °F Hi 84 °F

Air Quality Alert
 

This Afternoon
 
 Widespread smoke. Mostly sunny and hot, with a high near 91. North northeast wind 3 to 5 mph.
Tonight
 
 Widespread smoke. Partly cloudy, with a low around 68. Light and variable wind.
Friday
 
 A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. South southeast wind 5 to 7 mph. Chance of precipitation is 30%.
Friday Night
 
 A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 71. South southwest wind 5 to 7 mph. Chance of precipitation is 30%.
Saturday
 
 A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. West southwest wind 8 to 15 mph, with gusts as high as 29 mph.
Saturday Night
 
 A 30 percent chance of showers before 8pm. Mostly clear, with a low around 61.
Sunday
 
 Sunny, with a high near 83.
Sunday Night
 
 Mostly clear, with a low around 61.
Monday
 
 Mostly sunny, with a high near 84.
Monday Night
 
 A chance of thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 64.
Tuesday
 
 A chance of showers. Partly sunny, with a high near 81.
Tuesday Night
 
 Mostly clear, with a low around 58.
Wednesday
 
 Sunny, with a high near 79.

 

Forecast from NOAA-NWS for Portage MI.