Beloit, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Beloit, a city in Winnebago County, Wisconsin.
This Afternoon
69°F
Light Rain
Rain and a slight chance of thunderstorms. Cloudy, with a high near 69. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Beloit
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Light Rain | 15 mph S | 86% |
| Tonight | 55°F | Light Rain | 15 mph S | 92% |
| Wednesday | 60°F | Light Rain Likely | 10 to 15 mph SW | 68% |
| Wednesday Night | 46°F | Chance Light Rain | 10 to 15 mph SW | 33% |
| Thursday | 55°F | Light Rain Likely | 10 to 15 mph W | 65% |
| Thursday Night | 39°F | Chance Light Rain | 5 to 10 mph NW | 35% |
| Friday | 49°F | Slight Chance Light Rain then Mostly Cloudy | 10 to 15 mph N | 17% |
| Friday Night | 32°F | Partly Cloudy | 0 to 10 mph N | 2% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph W | 3% |
| Saturday Night | 32°F | Partly Cloudy | 0 to 5 mph W | 4% |
| Sunday | 58°F | Mostly Sunny then Slight Chance Light Rain | 5 to 10 mph W | 16% |
| Sunday Night | 34°F | Mostly Clear | 0 to 5 mph W | 5% |
| Monday | 60°F | Sunny | 5 to 15 mph SW | 1% |
| Monday Night | 38°F | Mostly Clear | 5 to 10 mph W | 1% |
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 Nov 4, 2026.