Harman US

Batavia, IL Weather & Growing Conditions

Today
78°F
Showers And Thunderstorms then Showers And Thunderstorms Likely
Showers and thunderstorms before noon, then showers and thunderstorms likely. Cloudy. High near 78, with temperatures falling to around 76 in the afternoon. Southeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Today 78°F Showers And Thunderstorms then Showers And Thunderstorms Likely 5 to 10 mph SE 100%
Tonight 64°F Showers And Thunderstorms 5 to 10 mph E 96%
Sunday 70°F Showers And Thunderstorms Likely 10 to 15 mph NNE 61%
Sunday Night 56°F Chance Rain Showers 15 mph NE 32%
Monday 64°F Chance Rain Showers 15 mph ENE 35%
Monday Night 52°F Slight Chance Rain Showers then Mostly Cloudy 10 to 15 mph NE 24%
Tuesday 63°F Slight Chance Rain Showers 10 to 15 mph NE 18%
Tuesday Night 51°F Mostly Cloudy 10 to 15 mph NE 8%
Wednesday 65°F Partly Sunny 10 to 15 mph NE 7%
Wednesday Night 52°F Partly Cloudy 5 to 10 mph NNE 2%
Thursday 67°F Partly Sunny 5 to 10 mph NNE 3%
Thursday Night 52°F Partly Cloudy 5 to 10 mph NNE 3%
Friday 71°F Mostly Sunny 5 to 10 mph NE 4%
Friday Night 53°F Partly Cloudy 5 to 10 mph NE 4%

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

Growing snapshot for Batavia, IL

Last spring frost
Apr 19
First fall frost
Oct 23
Growing season
185 days
Hardiness zone
5b

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

Climate data from the nearest NOAA station, Aurora, Il (4.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.