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Franklinville, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Franklinville, a community in Mchenry County, Illinois.

Overnight
62°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. Low around 62, with temperatures rising to around 64 overnight. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

7-day forecast for Franklinville

WhenTempForecastWindPrecip
Overnight 62°F Showers And Thunderstorms 10 mph ESE 100%
Saturday 76°F Showers And Thunderstorms then Showers And Thunderstorms Likely 5 to 10 mph SE 100%
Saturday Night 61°F Showers And Thunderstorms 5 to 10 mph E 94%
Sunday 68°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 10 to 15 mph NE 55%
Sunday Night 54°F Slight Chance Rain Showers 15 mph NE 17%
Monday 63°F Chance Rain Showers 15 mph ENE 28%
Monday Night 50°F Slight Chance Rain Showers then Mostly Cloudy 10 to 15 mph NE 16%
Tuesday 62°F Mostly Cloudy 10 to 15 mph NE 14%
Tuesday Night 49°F Mostly Cloudy 5 to 10 mph NE 7%
Wednesday 64°F Partly Sunny 5 to 10 mph NE 6%
Wednesday Night 50°F Mostly Cloudy 0 to 5 mph NE 2%
Thursday 67°F Partly Sunny 0 to 5 mph NE 5%
Thursday Night 50°F Partly Cloudy 0 to 5 mph NE 5%
Friday 70°F Mostly Sunny 0 to 5 mph NE 4%

Forecast source: National Weather Service (api.weather.gov) for Franklinville (42.275, -88.516). Updated through the day.

Growing snapshot for Franklinville

Last spring frost
Apr 28
First fall frost
Oct 12
Growing season
166 days
Hardiness zone
5b

More local growing data for Franklinville: nearby ZIP 60180 weather · frost dates · planting calendar · Illinois frost dates

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Climate data from the nearest NOAA station, Marengo, Il (5.3 mi from Franklinville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.