Beloit, WI Weather & Growing Conditions
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 5 to 10 mph SW | 12% |
| Tonight | 65°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 87% |
| Wednesday | 75°F | Patchy Fog | 0 to 5 mph W | 81% |
| Wednesday Night | 58°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 50% |
| Thursday | 78°F | Chance Rain Showers then Mostly Sunny | 0 to 5 mph NE | 28% |
| Thursday Night | 57°F | Mostly Clear | 0 mph | 9% |
| Friday | 80°F | Mostly Sunny | 0 to 5 mph S | 3% |
| Friday Night | 61°F | Mostly Clear | 0 to 5 mph S | 5% |
| Saturday | 83°F | Mostly Sunny | 5 to 10 mph SW | 11% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 25% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 5 to 15 mph SW | 25% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 45% |
| Monday | 83°F | Chance Rain Showers | 5 to 10 mph S | 44% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 5 to 10 mph NW | 43% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Beloit, WI
Last spring frost
May 1
First fall frost
Oct 12
Growing season
162 days
Hardiness zone
5b
Explore more for Beloit, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Beloit, Wi (4.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.