National Weather Service Forecast for: Oshkosh WI
Issued by: National Weather Service Green Bay, WI
Updated: 1:56 pm CDT Jul 16, 2026
 
Tonight

Tonight: A 20 percent chance of showers and thunderstorms after 2am. Areas of smoke. Mostly cloudy, with a low around 67. South southeast wind 5 to 8 mph.
Areas Smoke
then Slight
Chance
T-storms
 Friday

Friday: A chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 2pm. Areas of smoke before 2pm. Mostly sunny, with a high near 86. Heat index values as high as 91. Southwest wind 5 to 9 mph. Chance of precipitation is 30%.
Chance
Showers then
Slight Chance
T-storms
 Friday
Night
Friday Night: A 30 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 71. West southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Chance
T-storms then
Mostly Clear
 Saturday

Saturday: Sunny, with a high near 82. North northwest wind around 11 mph, with gusts as high as 20 mph.
Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 63. North wind 5 to 10 mph becoming light east northeast after midnight.
Mostly Clear

 Sunday

Sunday: Sunny, with a high near 80.
Sunny

 Sunday
Night
Sunday Night: Partly cloudy, with a low around 66.
Partly Cloudy

 Monday

Monday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Chance
Showers then
Chance
T-storms
 Monday
Night
Monday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 66. Chance of precipitation is 40%.
Chance
T-storms
Lo 67 °F Hi 86 °F Lo 71 °F Hi 82 °F Lo 63 °F Hi 80 °F Lo 66 °F Hi 83 °F Lo 66 °F

Hazardous Weather Outlook
Air Quality Alert
 

Tonight
 
 A 20 percent chance of showers and thunderstorms after 2am. Areas of smoke. Mostly cloudy, with a low around 67. South southeast wind 5 to 8 mph.
Friday
 
 A chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 2pm. Areas of smoke before 2pm. Mostly sunny, with a high near 86. Heat index values as high as 91. Southwest wind 5 to 9 mph. Chance of precipitation is 30%.
Friday Night
 
 A 30 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 71. West southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Saturday
 
 Sunny, with a high near 82. North northwest wind around 11 mph, with gusts as high as 20 mph.
Saturday Night
 
 Mostly clear, with a low around 63. North wind 5 to 10 mph becoming light east northeast after midnight.
Sunday
 
 Sunny, with a high near 80.
Sunday Night
 
 Partly cloudy, with a low around 66.
Monday
 
 A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Monday Night
 
 A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 66. Chance of precipitation is 40%.
Tuesday
 
 A 20 percent chance of showers after 1pm. Sunny, with a high near 77.
Tuesday Night
 
 Mostly clear, with a low around 59.
Wednesday
 
 Sunny, with a high near 75.
Wednesday Night
 
 Mostly clear, with a low around 60.
Thursday
 
 Sunny, with a high near 77.

 

Forecast from NOAA-NWS for Oshkosh WI.