Oshkosh, WI Weather & Growing Conditions
Today
63°F
Chance Rain Showers then Patchy Fog
A chance of rain showers and patchy fog before 8am, then patchy fog and a slight chance of rain showers. Mostly cloudy. High near 63, with temperatures falling to around 55 in the afternoon. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 63°F | Chance Rain Showers then Patchy Fog | 10 to 15 mph SSW | 49% |
| Tonight | 45°F | Mostly Cloudy then Chance Rain Showers | 14 mph SW | 49% |
| Thursday | 54°F | Rain Showers Likely | 10 to 14 mph WNW | 55% |
| Thursday Night | 34°F | Mostly Cloudy | 14 mph N | 11% |
| Friday | 47°F | Partly Sunny | 7 to 15 mph N | 13% |
| Friday Night | 30°F | Partly Cloudy | 2 to 6 mph NNW | 0% |
| Saturday | 50°F | Sunny | 2 to 7 mph WNW | 0% |
| Saturday Night | 33°F | Mostly Clear | 5 to 8 mph W | 4% |
| Sunday | 55°F | Sunny | 8 to 13 mph W | 8% |
| Sunday Night | 34°F | Mostly Clear | 5 to 8 mph W | 1% |
| Monday | 58°F | Mostly Sunny | 5 to 12 mph WSW | 0% |
| Monday Night | 38°F | Mostly Clear | 9 mph W | 0% |
| Tuesday | 58°F | Mostly Sunny | 6 to 10 mph WNW | 4% |
| Tuesday Night | 36°F | Slight Chance Rain Showers then Partly Cloudy | 5 mph NW | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Oshkosh, WI
Last spring frost
Apr 24
First fall frost
Oct 20
Growing season
178 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, Wi (3.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.