Harman US

Modesto, IL Weather & Growing Conditions

This Afternoon
72°F
Light Rain
Rain and a slight chance of thunderstorms. Cloudy. High near 72, with temperatures falling to around 65 in the afternoon. South wind around 17 mph, with gusts as high as 29 mph. Chance of precipitation is 90%.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 72°F Light Rain 17 mph S 93%
Tonight 51°F Light Rain 10 to 20 mph S 90%
Wednesday 60°F Chance Rain Showers then Mostly Cloudy 9 to 15 mph SW 12%
Wednesday Night 41°F Partly Cloudy 8 mph SW 0%
Thursday 62°F Mostly Sunny 7 to 12 mph W 4%
Thursday Night 41°F Mostly Cloudy then Slight Chance T-storms 6 mph NW 21%
Friday 56°F Mostly Cloudy 6 to 9 mph N 9%
Friday Night 35°F Mostly Cloudy 2 to 7 mph N 2%
Saturday 55°F Mostly Sunny 3 mph NW 1%
Saturday Night 33°F Partly Cloudy 2 mph W 1%
Sunday 61°F Sunny 2 to 7 mph W 7%
Sunday Night 33°F Mostly Clear 5 mph W 4%
Monday 65°F Sunny 3 to 8 mph SW 2%
Monday Night 38°F Mostly Clear 6 mph SW 1%

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

Growing snapshot for Modesto, IL

Last spring frost
Apr 7
First fall frost
Oct 29
Growing season
205 days
Hardiness zone
6b

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

Climate data from the nearest NOAA station, Virden, Il (12 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.