Marion, IL 14 Day Weather - 62959 WeatherWorld.com
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Marion, IL Weather Forecast


Marion, IL Weather Forecast Dated: 715 PM Tue Sep 15 2026
Expect a hot stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Tuesday, September 15, 2026
Mid-Morning
84°F 29°C
Sunny
Mid-Afternoon
101°F 38°C
Partly Cloudy
Early-Evening
92°F 33°C
Overcast
Scorching hot near 101°F 38°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds turning from the SSW to the S at 10 mph 15 km/h.
Wednesday, September 16, 2026
Mid-Morning
85°F 29°C
Sunny
Mid-Afternoon
101°F 38°C
Overcast
Early-Evening
93°F 34°C
Overcast
Sweltering heat reaching 101°F 38°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds switching from the SW to the SSE at 3 mph 5 km/h.
Thursday, September 17, 2026
Mid-Morning
87°F 31°C
Sunny
Mid-Afternoon
101°F 38°C
Overcast
Early-Evening
94°F 34°C
Partly Cloudy
Dangerously hot temperatures around 101°F 38°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds decreasing from SW 11 mph 17 km/h to SSW 3 mph 5 km/h.
Friday, September 18, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
102°F 39°C
Cloudy
Early-Evening
86°F 30°C
Scattered Showers
Dangerously hot with a high of 102°F 39°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling.
Saturday, September 19, 2026
Mid-Morning
87°F 31°C
Overcast
Mid-Afternoon
101°F 38°C
Overcast
Early-Evening
93°F 34°C
Cloudy
Scorching hot near 101°F 38°C, overcast throughout the day, with lower humidity and steady pressure. Winds swinging from the WSW to the SW at 8 mph 12 km/h.
Sunday, September 20, 2026
Mid-Morning
88°F 31°C
Sunny
Mid-Afternoon
102°F 39°C
Sunny
Early-Evening
93°F 34°C
Cloudy
Sweltering heat reaching 102°F 39°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds shifting from the WSW to the SSW at 9 mph 15 km/h.
Monday, September 21, 2026
Mid-Morning
85°F 29°C
Cloudy
Mid-Afternoon
97°F 36°C
Partly Cloudy
Early-Evening
86°F 30°C
Cloudy
Hot and sweltering around 97°F 36°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds turning from the WSW to the SSE at 8 mph 12 km/h.
Tuesday, September 22, 2026
Mid-Morning
73°F 23°C
Light Fog
Mid-Afternoon
92°F 33°C
Overcast
Early-Evening
83°F 29°C
Overcast
Sizzling hot with 92°F 33°C, overcast throughout the day, with lower humidity and steady pressure. Winds switching from the NE to the ESE at 8 mph 13 km/h.
Wednesday, September 23, 2026
Mid-Morning
74°F 23°C
Overcast
Mid-Afternoon
84°F 29°C
Overcast
Early-Evening
79°F 26°C
Sunny
Very warm near 84°F 29°C, though humidity makes it feel like 88°F 31°C, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure.
Thursday, September 24, 2026
Mid-Morning
74°F 23°C
Light Showers
Mid-Afternoon
82°F 28°C
Overcast
Early-Evening
72°F 22°C
Scattered Showers
Warm and summery around 82°F 28°C (feels like 85°F 29°C), periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds moving from the SSW to the WNW at 10 mph 15 km/h.
Friday, September 25, 2026
Mid-Morning
63°F 17°C
Scattered Showers
Mid-Afternoon
75°F 24°C
Light Showers
Early-Evening
70°F 21°C
Scattered Showers
Pleasant near 75°F 24°C, scattered downpours possible, with steady humidity and steady pressure. Winds swinging from the WNW to the NW at 11 mph 18 km/h. Gusts up to 24 mph 39 km/h.
Saturday, September 26, 2026
Mid-Morning
68°F 20°C
Sunny
Mid-Afternoon
82°F 28°C
Sunny
Early-Evening
74°F 24°C
Sunny
Balmy with temperatures reaching 82°F 28°C, sunny throughout the day, with lower humidity and steady pressure. Winds shifting from the NNW to the N at 8 mph 13 km/h.
Sunday, September 27, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
68°F 20°C
Overcast
Early-Evening
64°F 18°C
Cloudy
Enjoyable around 68°F 20°C, partly cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds turning from the ESE to the NNE at 11 mph 17 km/h.
Monday, September 28, 2026
Mid-Morning
56°F 14°C
Sunny
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
62°F 16°C
Sunny
Mild temperatures up to 70°F 21°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the NE to the E at 7 mph 11 km/h.
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