Beloit, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Beloit, a city in Winnebago County, Wisconsin.
This Afternoon
70°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a high near 70. East wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Beloit
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Chance Rain Showers | 10 mph E | 35% |
| Tonight | 61°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 mph E | 86% |
| Saturday | 75°F | Showers And Thunderstorms | 5 to 10 mph SE | 94% |
| Saturday Night | 61°F | Showers And Thunderstorms | 5 to 10 mph NE | 77% |
| Sunday | 67°F | Rain Showers Likely | 10 to 15 mph NE | 57% |
| Sunday Night | 54°F | Chance Rain Showers | 10 to 15 mph NE | 38% |
| Monday | 63°F | Chance Rain Showers | 15 mph NE | 36% |
| Monday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 36% |
| Tuesday | 62°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 24% |
| Tuesday Night | 47°F | Mostly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 64°F | Partly Sunny | 5 to 10 mph NE | 5% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 10 mph NE | 2% |
| Thursday | 66°F | Partly Sunny | 0 to 5 mph NE | 6% |
| Thursday Night | 50°F | Mostly Cloudy | 0 to 5 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Beloit (42.524, -89.018). Updated through the day.
Growing snapshot for Beloit
Last spring frost
May 1
First fall frost
Oct 12
Growing season
162 days
Hardiness zone
5b
More local growing data for Beloit: nearby ZIP 61080 weather · frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Beloit, Wi (2.9 mi from Beloit). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.