Weather in Marissa, Illinois
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 05:02 PM ET · Refreshes every hour
76°F
Partly cloudy
Feels like 79°F
69%
Humidity
7 mph
Wind Speed
About Weather in Marissa
Marissa is located in Illinois (coordinates: 38.249667°N, 89.771413°W). Weather data is sourced from Open-Meteo, a free and open meteorological API using data from national weather services including NOAA.
All temperatures are displayed in Fahrenheit. Wind speed is in miles per hour.