Jerseyville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jerseyville, a city in Jersey County, Illinois.
Tonight
55°F
Light Rain
Rain and a slight chance of thunderstorms before 3am, then a chance of rain showers. Cloudy, with a low around 55. Southwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
7-day forecast for Jerseyville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Light Rain | 10 to 15 mph SW | 78% |
| Wednesday | 61°F | Chance Rain Showers then Mostly Cloudy | 10 to 16 mph SW | 12% |
| Wednesday Night | 42°F | Partly Cloudy | 8 mph SW | 0% |
| Thursday | 63°F | Sunny | 7 to 13 mph W | 3% |
| Thursday Night | 42°F | Slight Chance T-storms | 7 mph NW | 16% |
| Friday | 57°F | Mostly Cloudy | 7 to 12 mph NW | 5% |
| Friday Night | 37°F | Mostly Cloudy | 2 to 8 mph N | 1% |
| Saturday | 56°F | Mostly Sunny | 5 mph NW | 0% |
| Saturday Night | 35°F | Partly Cloudy | 3 mph W | 1% |
| Sunday | 62°F | Sunny | 3 to 8 mph W | 7% |
| Sunday Night | 35°F | Mostly Clear | 6 mph W | 4% |
| Monday | 65°F | Sunny | 3 to 9 mph SW | 2% |
| Monday Night | 40°F | Mostly Clear | 6 mph SW | 1% |
| Tuesday | 68°F | Sunny | 6 mph W | 1% |
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
Nearby towns & communities
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 Nov 4, 2026.