Harman US

Biggsville, IL Weather & Growing Conditions

Overnight
69°F
Patchy Fog
Patchy fog between 4am and 5am, then patchy fog and a slight chance of showers and thunderstorms. Partly cloudy. Low around 69, with temperatures rising to around 71 overnight. South wind 5 to 10 mph. Chance of precipitation is 20%.

7-day forecast

WhenTempForecastWindPrecip
Overnight 69°F Patchy Fog 5 to 10 mph S 16%
Saturday 85°F Patchy Fog 5 to 10 mph S 23%
Saturday Night 66°F Chance Showers And Thunderstorms 5 mph W 80%
Sunday 74°F Showers And Thunderstorms 5 to 15 mph N 83%
Sunday Night 59°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 10 to 15 mph NE 62%
Monday 65°F Showers And Thunderstorms Likely 15 mph NE 62%
Monday Night 53°F Chance Rain Showers 10 to 15 mph NE 51%
Tuesday 63°F Chance Rain Showers 10 to 15 mph NE 40%
Tuesday Night 49°F Partly Cloudy 5 to 10 mph NE 5%
Wednesday 67°F Mostly Sunny 5 to 10 mph NE 0%
Wednesday Night 52°F Partly Cloudy 0 to 5 mph NE 1%
Thursday 70°F Mostly Sunny 5 mph NE 5%
Thursday Night 54°F Partly Cloudy 0 to 5 mph NE 5%
Friday 72°F Mostly Sunny 5 mph NE 5%

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

Growing snapshot for Biggsville, IL

Last spring frost
Apr 8
First fall frost
Oct 29
Growing season
202 days
Hardiness zone
5b

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

Climate data from the nearest NOAA station, Gladstone Dam 18, Il (8.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.