Marissa, IL 14 Day Weather - 62257 WeatherWorld.com
Quick Weather Clicks
Settings
Sun & Moon


Marissa, IL Weather Forecast


Marissa, IL Weather Forecast Dated: 646 AM Sun Sep 13 2026
Expect a very warm period with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate. Isolated storms at times.
Sunday, September 13, 2026
Mid-Morning
76°F 24°C
Overcast
Mid-Afternoon
95°F 35°C
Partly Cloudy
Early-Evening
80°F 27°C
Scattered Showers
Very hot with temperatures reaching 95°F 35°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the WSW to the NNE at 8 mph 13 km/h.
Monday, September 14, 2026
Mid-Morning
68°F 20°C
Cloudy
Mid-Afternoon
88°F 31°C
Sunny
Early-Evening
84°F 29°C
Overcast
Balmy with temperatures reaching 88°F 31°C, cloudy in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds switching from the E to the SE at 11 mph 18 km/h. Gusts up to 21 mph 34 km/h.
Tuesday, September 15, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
101°F 38°C
Overcast
Early-Evening
83°F 28°C
Scattered Showers
Dangerously hot temperatures around 101°F 38°C, locally heavy downpours at times, with increasing humidity and steady pressure. Winds moving from the SSW to the N at 10 mph 17 km/h.
Wednesday, September 16, 2026
Mid-Morning
77°F 25°C
Overcast
Mid-Afternoon
96°F 35°C
Sunny
Early-Evening
88°F 31°C
Sunny
Sizzling hot near 96°F 35°C with a heat index reaching 101°F 38°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and steady pressure.
Thursday, September 17, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
97°F 36°C
Sunny
Early-Evening
90°F 32°C
Sunny
Hot and sweltering around 97°F 36°C (heat index 100°F 38°C), sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds swinging from the SW to the SSE at 6 mph 10 km/h.
Friday, September 18, 2026
Mid-Morning
77°F 25°C
Light Fog
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
81°F 28°C
Cloudy
Very hot with a high of 91°F 33°C, feeling closer to 95°F 35°C in the humidity, overcast in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds shifting from the NE to the ENE at 8 mph 13 km/h.
Saturday, September 19, 2026
Mid-Morning
77°F 25°C
Light Fog
Mid-Afternoon
95°F 35°C
Nearby Thunderstorms
Early-Evening
82°F 28°C
Nearby Thunderstorms
Sizzling hot near 95°F 35°C with a heat index reaching 99°F 37°C, periods of heavy thunderstorms, with steady humidity and barometric pressure falling. Winds turning from the SSE to the S at 13 mph 20 km/h.
Sunday, September 20, 2026
Mid-Morning
73°F 23°C
Light Fog
Mid-Afternoon
76°F 25°C
Scattered Showers
Early-Evening
72°F 23°C
Overcast
Enjoyable around 76°F 25°C, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the WNW to the ESE at 10 mph 15 km/h.
Monday, September 21, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
63°F 17°C
Light Showers
Early-Evening
62°F 17°C
Scattered Showers
Refreshing around 63°F 17°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the NNE to the NE at 12 mph 19 km/h. Gusts up to 22 mph 36 km/h.
Tuesday, September 22, 2026
Mid-Morning
65°F 18°C
Light Showers
Mid-Afternoon
68°F 20°C
Light Showers
Early-Evening
67°F 20°C
Light Showers
Mild with a high of 68°F 20°C, rounds of showers expected off and on all day, with steady humidity and steady pressure. Winds swinging from the ENE to the N at 9 mph 14 km/h.
Wednesday, September 23, 2026
Mid-Morning
67°F 19°C
Heavy Rain Showers
Mid-Afternoon
66°F 19°C
Light Showers
Early-Evening
67°F 20°C
Light Fog
Comfortable at 66°F 19°C, showers lingering into the afternoon before clearing, with steady humidity and steady pressure. Winds shifting from the SSE to the ENE at 4 mph 7 km/h.
Thursday, September 24, 2026
Mid-Morning
69°F 21°C
Fog
Mid-Afternoon
77°F 25°C
Scattered Showers
Early-Evening
75°F 24°C
Scattered Showers
Comfortable with temperatures reaching 77°F 25°C, locally heavy downpours at times, with steady humidity and steady pressure.
Friday, September 25, 2026
Mid-Morning
74°F 23°C
Light Fog
Mid-Afternoon
83°F 28°C
Sunny
Early-Evening
79°F 26°C
Sunny
Quite warm around 83°F 28°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure.
Saturday, September 26, 2026
Mid-Morning
74°F 23°C
Light Fog
Mid-Afternoon
83°F 28°C
Sunny
Early-Evening
78°F 26°C
Sunny
Quite warm reaching 83°F 28°C, feeling like 86°F 30°C during peak afternoon, sunny throughout the day, with steady humidity and steady pressure.
Marissa, IL Weather Radar Map
Use the map search tool if you want to place a location marker on the radar map...
Weather World