Harman US

Tolono, IL Weather & Growing Conditions

Overnight
69°F
Mostly Cloudy
Mostly cloudy, with a low around 69. Southeast wind around 7 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 69°F Mostly Cloudy 7 mph SE 13%
Saturday 89°F Chance Showers And Thunderstorms 8 mph SSE 35%
Saturday Night 69°F Mostly Cloudy then Slight Chance Showers And Thunderstorms 6 mph S 18%
Sunday 82°F Chance Showers And Thunderstorms 5 to 12 mph N 58%
Sunday Night 58°F Showers And Thunderstorms Likely then Chance Showers And Thunderstorms 14 mph NE 60%
Monday 68°F Showers And Thunderstorms Likely 15 mph NE 71%
Monday Night 53°F Chance Rain Showers 12 to 16 mph NE 48%
Tuesday 67°F Chance Rain Showers 15 mph NE 30%
Tuesday Night 52°F Chance Showers And Thunderstorms then Mostly Cloudy 8 to 14 mph NNE 30%
Wednesday 69°F Mostly Sunny 12 mph NNE 5%
Wednesday Night 52°F Partly Cloudy 6 to 10 mph NNE 5%
Thursday 71°F Mostly Sunny 9 mph NNE 2%
Thursday Night 54°F Partly Cloudy 8 mph NNE 2%
Friday 74°F Mostly Sunny 6 to 9 mph NE 2%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Tolono, IL

Last spring frost
Apr 19
First fall frost
Oct 17
Growing season
180 days
Hardiness zone
6a

Explore more for Tolono, IL: full frost dates · planting calendar · Illinois frost dates

Climate data from the nearest NOAA station, Champaign Willard Ap, Il (4.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.