Harman US

Mahomet, IL Weather & Growing Conditions

This Afternoon
72°F
Chance Light Rain
A chance of rain. Mostly cloudy, with a high near 72. South southeast wind 20 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 72°F Chance Light Rain 20 to 23 mph SSE 36%
Tonight 55°F Light Rain 16 to 20 mph S 96%
Wednesday 62°F Chance Light Rain then Mostly Cloudy 14 to 17 mph SW 30%
Wednesday Night 45°F Mostly Cloudy 13 mph SW 3%
Thursday 61°F Mostly Sunny 12 to 16 mph WSW 5%
Thursday Night 43°F Mostly Cloudy 6 to 9 mph WNW 12%
Friday 55°F Slight Chance Light Rain then Partly Sunny 7 to 12 mph NNW 19%
Friday Night 35°F Mostly Cloudy 5 to 10 mph NNW 5%
Saturday 53°F Mostly Sunny 6 mph NW 2%
Saturday Night 33°F Partly Cloudy 5 mph W 2%
Sunday 59°F Sunny 5 to 10 mph W 12%
Sunday Night 34°F Mostly Clear 5 to 8 mph WNW 7%
Monday 63°F Sunny 5 to 13 mph WSW 3%
Monday Night 39°F Mostly Clear 9 mph WSW 2%

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

Growing snapshot for Mahomet, IL

Last spring frost
Apr 23
First fall frost
Oct 13
Growing season
170 days
Hardiness zone
6a

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

Climate data from the nearest NOAA station, Champaign 9 Sw, Il (12.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.