| National Weather Service Forecast for:
Oshkosh WI Issued by: National Weather Service Green Bay, WI |
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| Updated: 10:51 pm CDT Jun 29, 2026 | ||||||||||||||||||
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Hazardous Weather Outlook
Extreme Heat Warning
| Tonight |
Partly cloudy, with a low around 74. South wind around 11 mph, with gusts as high as 21 mph. |
| Tuesday |
A 10 percent chance of showers before 7am. Mostly sunny and hot, with a high near 91. Heat index values as high as 100. Southwest wind 11 to 15 mph, with gusts as high as 26 mph. |
| Tuesday Night |
A 40 percent chance of showers and thunderstorms, mainly between 1am and 5am. Partly cloudy, with a low around 74. Southwest wind 9 to 14 mph, with gusts as high as 23 mph. |
| Wednesday |
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 87. Heat index values as high as 91. South southwest wind 8 to 14 mph, with gusts as high as 24 mph. |
| Wednesday Night |
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 73. South southwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. |
| Thursday |
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 60%. |
| Thursday Night |
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 70%. |
| Friday |
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 82. Chance of precipitation is 60%. |
| Friday Night |
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Chance of precipitation is 60%. |
| Independence Day |
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 82. Chance of precipitation is 50%. |
| Saturday Night |
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%. |
| Sunday |
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. |
| Sunday Night |
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. |
| Monday |
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78. |
Forecast from NOAA-NWS for Oshkosh WI.