Oshkosh, WI Weather & Growing Conditions
This Afternoon
64°F
Showers And Thunderstorms
Rain showers likely before 1pm, then showers and thunderstorms. Cloudy. High near 64, with temperatures falling to around 62 in the afternoon. East wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Showers And Thunderstorms | 13 mph E | 80% |
| Tonight | 56°F | Showers And Thunderstorms Likely | 13 mph NE | 56% |
| Sunday | 66°F | Partly Sunny | 13 to 16 mph NE | 11% |
| Sunday Night | 50°F | Mostly Cloudy | 12 to 16 mph NE | 1% |
| Monday | 61°F | Mostly Cloudy | 12 to 15 mph NE | 2% |
| Monday Night | 47°F | Mostly Cloudy | 9 to 13 mph NE | 1% |
| Tuesday | 61°F | Mostly Sunny | 9 to 14 mph ENE | 1% |
| Tuesday Night | 47°F | Mostly Clear | 7 to 10 mph NE | 1% |
| Wednesday | 64°F | Sunny | 7 to 12 mph ENE | 1% |
| Wednesday Night | 49°F | Partly Cloudy | 3 to 8 mph NE | 1% |
| Thursday | 67°F | Mostly Sunny | 5 to 8 mph NE | 2% |
| Thursday Night | 50°F | Partly Cloudy | 2 to 7 mph NE | 1% |
| Friday | 70°F | Mostly Sunny | 3 to 7 mph NE | 3% |
| Friday Night | 51°F | Partly Cloudy | 2 to 6 mph E | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Oshkosh, WI
Last spring frost
Apr 30
First fall frost
Oct 13
Growing season
165 days
Hardiness zone
5b
Explore more for Oshkosh, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Oshkosh Wittman Ap, Wi (2.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.