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Fairmount, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Fairmount, a village in Vermilion County, Illinois.

This Afternoon
75°F
Slight Chance Light Rain
A slight chance of rain after 5pm. Partly sunny, with a high near 75. South wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Fairmount

WhenTempForecastWindPrecip
This Afternoon 75°F Slight Chance Light Rain 17 mph S 15%
Tonight 58°F Light Rain 14 to 17 mph S 82%
Wednesday 65°F Chance Light Rain then Mostly Cloudy 10 to 15 mph SSW 29%
Wednesday Night 45°F Mostly Cloudy 8 mph SW 1%
Thursday 63°F Mostly Sunny 7 to 13 mph WSW 3%
Thursday Night 43°F Mostly Cloudy 5 mph WNW 6%
Friday 57°F Partly Sunny 3 to 9 mph NNW 13%
Friday Night 36°F Mostly Cloudy 2 to 7 mph NNW 7%
Saturday 55°F Mostly Sunny 3 mph NW 2%
Saturday Night 33°F Partly Cloudy 1 mph W 2%
Sunday 60°F Mostly Sunny 1 to 7 mph W 10%
Sunday Night 33°F Mostly Clear 5 mph WNW 9%
Monday 64°F Sunny 2 to 9 mph WSW 5%
Monday Night 38°F Mostly Clear 5 mph WSW 2%

Forecast source: National Weather Service (api.weather.gov) for Fairmount (40.046, -87.829). Updated through the day.

Growing snapshot for Fairmount

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

More local growing data for Fairmount: nearby ZIP 61841 weather · frost dates · planting calendar · Illinois frost dates

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Climate data from the nearest NOAA station, Sidell 4N, Il (4.6 mi from Fairmount). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.