Marissa, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Marissa, a village in St. Clair County, Illinois.

Overnight

64°F

Clear

Clear, with a low around 64. Southeast wind around 1 mph.

7-day forecast for Marissa

When	Temp	Forecast	Wind	Precip
Overnight	64°F	Clear	1 mph SE	0%
Tuesday	87°F	Patchy Fog then Sunny	2 mph SE	0%
Tuesday Night	66°F	Mostly Clear	2 mph SE	0%
Wednesday	90°F	Sunny	1 to 5 mph S	3%
Wednesday Night	70°F	Partly Cloudy then Chance Showers And Thunderstorms	5 mph S	46%
Thursday	87°F	Chance Showers And Thunderstorms then Showers And Thunderstorms Likely	5 mph S	65%
Thursday Night	70°F	Chance Showers And Thunderstorms	2 mph S	54%
Friday	87°F	Chance Showers And Thunderstorms	2 mph SW	54%
Friday Night	70°F	Chance Showers And Thunderstorms	2 mph S	41%
Saturday	89°F	Chance Showers And Thunderstorms	3 mph S	41%
Saturday Night	71°F	Partly Cloudy	5 mph S	11%
Sunday	91°F	Sunny	7 mph S	7%
Sunday Night	73°F	Mostly Clear	8 mph S	5%
Monday	93°F	Sunny	5 to 8 mph S	5%

Forecast source: National Weather Service (api.weather.gov) for Marissa (38.250, -89.771). Updated through the day.

Growing snapshot for Marissa

Last spring frost

Apr 12

First fall frost

Oct 22

Growing season

191 days

Hardiness zone

More local growing data for Marissa: nearby ZIP 62257 weather · frost dates · planting calendar · Illinois frost dates

Nearby towns & communities

Belleville Brooklyn Cahokia Heights Caseyville Darmstadt Dupo East St. Louis Fairmont City Fairview Heights Fayetteville Floraville Freeburg Lebanon Lenzburg Mascoutah Millstadt New Athens O'Fallon Paderborn Rentchler Sauget Scott AFB Shiloh Smithton St. Libory Summerfield Swansea Washington Park

All Illinois locations ›

Climate data from the nearest NOAA station, Sparta 1 W, Il (11.6 mi from Marissa). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.