Harman US

Fillmore, IL Weather & Growing Conditions

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

7-day forecast

WhenTempForecastWindPrecip
Overnight 69°F Partly Cloudy 7 mph SE 11%
Saturday 95°F Mostly Sunny 6 mph SW 7%
Saturday Night 70°F Mostly Cloudy 3 mph S 7%
Sunday 91°F Chance Rain Showers 2 to 6 mph NW 26%
Sunday Night 63°F Chance Showers And Thunderstorms 5 to 8 mph NE 54%
Monday 77°F Rain Showers Likely 6 to 10 mph NE 60%
Monday Night 56°F Showers And Thunderstorms Likely 6 to 12 mph NE 58%
Tuesday 71°F Chance Rain Showers then Partly Sunny 10 mph NE 28%
Tuesday Night 52°F Mostly Cloudy 5 to 10 mph N 4%
Wednesday 73°F Mostly Sunny 6 to 9 mph N 3%
Wednesday Night 53°F Partly Cloudy 2 to 8 mph N 3%
Thursday 75°F Mostly Sunny 2 to 8 mph N 3%
Thursday Night 55°F Partly Cloudy 2 to 7 mph N 4%
Friday 76°F Mostly Sunny 2 to 7 mph NE 4%

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

Growing snapshot for Fillmore, IL

Last spring frost
Apr 15
First fall frost
Oct 19
Growing season
185 days
Hardiness zone
6b

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

Climate data from the nearest NOAA station, Ramsey, Il (10.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.