Marcelline, IL 14 Day Weather - WeatherWorld.com
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Marcelline, IL Weather Forecast


Marcelline, IL Weather Forecast Dated: 338 AM Thu Sep 17 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Thursday, September 17, 2026
Mid-Morning
75°F 24°C
Sunny
Mid-Afternoon
89°F 32°C
Cloudy
Early-Evening
83°F 29°C
Sunny
Warm and summery around 89°F 32°C (feels like 95°F 35°C), sunny in the morning, overcast in the afternoon, and sunny this evening, with lower humidity and steady pressure.
Friday, September 18, 2026
Mid-Morning
73°F 23°C
Partly Cloudy
Mid-Afternoon
92°F 33°C
Sunny
Early-Evening
87°F 31°C
Sunny
Hot and sweltering around 92°F 33°C (heat index 97°F 36°C), partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds out of the SSW at 7 mph 11 km/h.
Saturday, September 19, 2026
Mid-Morning
74°F 23°C
Overcast
Mid-Afternoon
79°F 26°C
Scattered Showers
Early-Evening
76°F 25°C
Light Showers
Enjoyable around 79°F 26°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds switching from the NNW to the SSW at 7 mph 10 km/h.
Sunday, September 20, 2026
Mid-Morning
71°F 22°C
Cloudy
Mid-Afternoon
78°F 25°C
Light Showers
Early-Evening
72°F 22°C
Sunny
Mild temperatures up to 78°F 25°C, drier morning followed by scattered afternoon showers, with steady humidity and steady pressure. Winds moving from the NW to the ENE at 10 mph 16 km/h.
Monday, September 21, 2026
Mid-Morning
62°F 16°C
Light Fog
Mid-Afternoon
68°F 20°C
Scattered Showers
Early-Evening
64°F 18°C
Overcast
Mild with a high of 68°F 20°C, scattered downpours possible, with lower humidity and steady pressure.
Tuesday, September 22, 2026
Mid-Morning
61°F 16°C
Light Fog
Mid-Afternoon
74°F 24°C
Sunny
Early-Evening
71°F 22°C
Sunny
Pleasant near 74°F 24°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Wednesday, September 23, 2026
Mid-Morning
70°F 21°C
Sunny
Mid-Afternoon
68°F 20°C
Light Showers
Early-Evening
63°F 18°C
Scattered Showers
Comfortable with temperatures reaching 68°F 20°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds swinging from the SW to the WNW at 11 mph 18 km/h. Gusts up to 24 mph 39 km/h.
Thursday, September 24, 2026
Mid-Morning
58°F 15°C
Sunny
Mid-Afternoon
67°F 20°C
Sunny
Early-Evening
59°F 16°C
Sunny
Cool with a high near 67°F 20°C, cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds shifting from the WNW to the NW at 10 mph 15 km/h.
Friday, September 25, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
66°F 19°C
Sunny
Early-Evening
59°F 15°C
Sunny
Refreshing around 66°F 19°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the NW to the ENE at 6 mph 10 km/h.
Saturday, September 26, 2026
Mid-Morning
56°F 13°C
Sunny
Mid-Afternoon
71°F 22°C
Sunny
Early-Evening
64°F 18°C
Sunny
Mild with a high of 71°F 22°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Sunday, September 27, 2026
Mid-Morning
60°F 15°C
Sunny
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
70°F 22°C
Overcast
Pleasant near 77°F 25°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds switching from the S to the SSE at 9 mph 15 km/h.
Monday, September 28, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
83°F 28°C
Sunny
Early-Evening
76°F 25°C
Sunny
Balmy with temperatures reaching 83°F 28°C, cloudy in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds moving from the SSW to the S at 6 mph 9 km/h.
Tuesday, September 29, 2026
Mid-Morning
67°F 20°C
Cloudy
Mid-Afternoon
76°F 25°C
Partly Cloudy
Early-Evening
70°F 21°C
Cloudy
Enjoyable around 76°F 25°C, cloudy through the afternoon, turning overcast this evening, with increasing humidity and steady pressure. Winds swinging from the SSW to the NE at 9 mph 14 km/h.
Wednesday, September 30, 2026
Mid-Morning
61°F 16°C
Cloudy
Mid-Afternoon
71°F 22°C
Overcast
Early-Evening
68°F 21°C
Partly Cloudy
Mild temperatures up to 71°F 22°C, cloudy throughout the day, with steady humidity and steady pressure. Winds out of the ENE at 9 mph 14 km/h. Gusts up to 20 mph 32 km/h.
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