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Fulton, IL Weather & Growing Conditions

Tonight
65°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between midnight and 4am, then showers and thunderstorms likely. Mostly cloudy. Low around 65, with temperatures rising to around 67 overnight. Southeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Tonight 65°F Mostly Cloudy then Chance Showers And Thunderstorms 5 to 10 mph SE 71%
Saturday 81°F Showers And Thunderstorms 5 to 10 mph S 75%
Saturday Night 63°F Showers And Thunderstorms Likely 5 to 10 mph N 74%
Sunday 70°F Showers And Thunderstorms Likely 10 to 15 mph NE 74%
Sunday Night 55°F Rain Showers Likely 10 to 15 mph NE 65%
Monday 65°F Chance Rain Showers 15 mph NE 53%
Monday Night 51°F Chance Rain Showers 10 to 15 mph NE 49%
Tuesday 63°F Chance Rain Showers 10 to 15 mph NE 33%
Tuesday Night 48°F Mostly Cloudy 5 to 10 mph NE 6%
Wednesday 68°F Mostly Sunny 5 to 10 mph NE 2%
Wednesday Night 51°F Mostly Cloudy 5 mph NE 2%
Thursday 70°F Partly Sunny 5 mph NE 5%
Thursday Night 52°F Partly Cloudy 0 to 5 mph NE 5%
Friday 71°F Mostly Sunny 0 to 5 mph NE 5%

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

Growing snapshot for Fulton, IL

Last spring frost
Apr 13
First fall frost
Oct 26
Growing season
195 days
Hardiness zone
5b

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

Climate data from the nearest NOAA station, Fulton L&D #13, Il (4.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.