Oostburg, WI Weather & Growing Conditions
Today
82°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 82. South wind 10 to 15 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 16% |
| Tonight | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph SW | 80% |
| Wednesday | 75°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 5 mph N | 56% |
| Wednesday Night | 60°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 23% |
| Thursday | 79°F | Mostly Sunny | 0 to 5 mph E | 9% |
| Thursday Night | 60°F | Mostly Clear | 0 to 5 mph SW | 5% |
| Friday | 82°F | Sunny | 5 to 10 mph SW | 1% |
| Friday Night | 64°F | Mostly Clear | 5 to 10 mph SW | 6% |
| Saturday | 84°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 15 mph SW | 15% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 32% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 10 mph SW | 32% |
| Sunday Night | 65°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 52% |
| Monday | 80°F | Chance Rain Showers | 5 to 10 mph S | 37% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 5 mph N | 44% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Oostburg, WI
Last spring frost
May 3
First fall frost
Oct 16
Growing season
165 days
Hardiness zone
5b
Explore more for Oostburg, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Hingham Wwtp, Wi (5.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.