Jerome, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Jerome, a village in Sangamon County, Illinois.

Today

88°F

Mostly Sunny

Mostly sunny, with a high near 88. South wind around 6 mph.

7-day forecast for Jerome

When	Temp	Forecast	Wind	Precip
Today	88°F	Mostly Sunny	6 mph S	0%
Tonight	69°F	Mostly Clear	6 mph SSE	0%
Wednesday	89°F	Mostly Sunny then Slight Chance Showers And Thunderstorms	7 mph S	19%
Wednesday Night	69°F	Chance Showers And Thunderstorms	6 mph S	79%
Thursday	84°F	Showers And Thunderstorms	5 mph SSW	79%
Thursday Night	67°F	Slight Chance Showers And Thunderstorms	3 mph SSE	19%
Friday	86°F	Partly Sunny	3 mph SW	9%
Friday Night	68°F	Slight Chance Showers And Thunderstorms	2 mph SSW	23%
Saturday	88°F	Slight Chance Showers And Thunderstorms then Mostly Sunny	2 to 6 mph SSW	23%
Saturday Night	72°F	Mostly Clear	3 to 7 mph S	10%
Sunday	91°F	Sunny	7 to 10 mph SSW	4%
Sunday Night	73°F	Mostly Clear	9 mph S	11%
Monday	91°F	Mostly Sunny	10 mph SSW	12%
Monday Night	74°F	Slight Chance Showers And Thunderstorms	8 mph SSW	22%

Forecast source: National Weather Service (api.weather.gov) for Jerome (39.768, -89.678). Updated through the day.

Growing snapshot for Jerome

Last spring frost

Apr 15

First fall frost

Oct 22

Growing season

188 days

Hardiness zone

More local growing data for Jerome: nearby ZIP 62704 weather · frost dates · planting calendar · Illinois frost dates

Nearby towns & communities

Auburn Berlin Buffalo Cantrall Chatham Curran Dawson Divernon Grandview Illiopolis Leland Grove Loami Mechanicsburg New Berlin Pawnee Pleasant Plains Riverton Rochester Sherman Southern View Spaulding Springfield Thayer Williamsville

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Climate data from the nearest NOAA station, Springfield #2, Il (1.6 mi from Jerome). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.