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Jerseyville, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Jerseyville, a city in Jersey County, Illinois.

This Afternoon
95°F
Mostly Cloudy
Mostly cloudy, with a high near 95. Southwest wind around 5 mph.

7-day forecast for Jerseyville

WhenTempForecastWindPrecip
This Afternoon 95°F Mostly Cloudy 5 mph SW 1%
Tonight 70°F Partly Cloudy 6 mph S 2%
Sunday 89°F Partly Sunny then Chance Showers And Thunderstorms 3 to 8 mph W 30%
Sunday Night 63°F Chance Showers And Thunderstorms 7 to 12 mph NE 70%
Monday 76°F Showers And Thunderstorms Likely 9 mph NE 70%
Monday Night 57°F Chance Showers And Thunderstorms 7 to 10 mph NE 43%
Tuesday 70°F Chance Rain Showers then Mostly Cloudy 9 to 13 mph N 27%
Tuesday Night 52°F Mostly Cloudy 6 to 13 mph N 3%
Wednesday 72°F Mostly Sunny 7 to 10 mph N 0%
Wednesday Night 52°F Partly Cloudy 3 to 8 mph N 0%
Thursday 75°F Mostly Sunny 3 to 7 mph N 0%
Thursday Night 56°F Mostly Cloudy then Slight Chance Rain Showers 2 to 6 mph NE 15%
Friday 77°F Slight Chance Rain Showers 3 to 7 mph NE 18%
Friday Night 56°F Slight Chance Rain Showers then Partly Cloudy 6 mph NE 18%

Forecast source: National Weather Service (api.weather.gov) for Jerseyville (39.117, -90.327). Updated through the day.

Growing snapshot for Jerseyville

Last spring frost
Apr 14
First fall frost
Oct 19
Growing season
187 days
Hardiness zone
6b

More local growing data for Jerseyville: nearby ZIP 62052 weather · frost dates · planting calendar · Illinois frost dates

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Climate data from the nearest NOAA station, Jerseyville 2 Sw, Il (1.5 mi from Jerseyville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.