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Wendelin, IL Weather Forecast
Wendelin, IL Weather Forecast Dated: 437 PM Thu Sep 10 2026
Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate. Isolated storms at times.
Thursday, September 10, 2026
Mid-Morning
72°F 22°C
Cloudy
Mid-Afternoon
77°F 25°C
Drizzle
Early-Evening
74°F 24°C
Drizzle
Pleasant near 77°F 25°C, drier morning followed by showers lasting through evening, with steady humidity and steady pressure. Winds turning from the ESE to the NE at 10 mph 15 km/h.
Friday, September 11, 2026
Mid-Morning
69°F 21°C
Overcast
Mid-Afternoon
78°F 26°C
Scattered Showers
Early-Evening
75°F 24°C
Scattered Showers
Comfortable with temperatures reaching 78°F 26°C, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the ENE to the S at 6 mph 10 km/h.
Saturday, September 12, 2026
Mid-Morning
73°F 23°C
Partly Cloudy
Mid-Afternoon
86°F 30°C
Overcast
Early-Evening
81°F 27°C
Scattered Showers
Quite warm around 86°F 30°C, locally heavy downpours at times, with lower humidity and steady pressure.
Sunday, September 13, 2026
Mid-Morning
79°F 26°C
Sunny
Mid-Afternoon
96°F 36°C
Sunny
Early-Evening
89°F 32°C
Sunny
Hot temperatures near 96°F 36°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and steady pressure.
Monday, September 14, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
100°F 38°C
Sunny
Early-Evening
92°F 34°C
Cloudy
Scorching hot near 100°F 38°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds moving from the S to the SSE at 11 mph 18 km/h. Gusts up to 22 mph 36 km/h.
Tuesday, September 15, 2026
Mid-Morning
86°F 30°C
Scattered Showers
Mid-Afternoon
97°F 36°C
Partly Cloudy
Early-Evening
81°F 28°C
Overcast
Very hot with a high of 97°F 36°C, feeling closer to 100°F 38°C in the humidity, locally heavy downpours at times, with increasing humidity and steady pressure. A stray shower or storm late in the day. Winds swinging from the SSW to the WSW at 9 mph 14 km/h.
Wednesday, September 16, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
90°F 32°C
Overcast
Early-Evening
74°F 24°C
Scattered Showers
Sizzling hot near 90°F 32°C with a heat index reaching 94°F 35°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds shifting from the WSW to the NNE at 8 mph 14 km/h.
Thursday, September 17, 2026
Mid-Morning
65°F 18°C
Scattered Showers
Mid-Afternoon
75°F 24°C
Cloudy
Early-Evening
71°F 22°C
Overcast
Enjoyable around 75°F 24°C, scattered downpours possible, with lower humidity and steady pressure. Winds NE at 12 mph 19 km/h.
Friday, September 18, 2026
Mid-Morning
63°F 17°C
Cloudy
Mid-Afternoon
78°F 26°C
Overcast
Early-Evening
70°F 21°C
Sunny
Mild temperatures up to 78°F 26°C, cloudy in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and barometric pressure falling. Winds switching from the ENE to the NE at 9 mph 14 km/h.
Saturday, September 19, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
72°F 23°C
Overcast
Mild with a high of 77°F 25°C, overcast throughout the day, with lower humidity and steady pressure. Winds blowing from the NE at 9 mph 14 km/h.
Sunday, September 20, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
69°F 21°C
Overcast
Early-Evening
69°F 20°C
Overcast
Pleasant near 69°F 21°C, overcast throughout the day, with steady humidity and steady pressure. Winds ENE at 9 mph 15 km/h.
Monday, September 21, 2026
Mid-Morning
65°F 18°C
Light Showers
Mid-Afternoon
67°F 20°C
Scattered Showers
Early-Evening
65°F 19°C
Scattered Showers
Cool with a high near 67°F 20°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds out of the E at 8 mph 12 km/h.
Tuesday, September 22, 2026
Mid-Morning
68°F 20°C
Partly Cloudy
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
76°F 25°C
Sunny
Quite warm around 81°F 27°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure.
Wednesday, September 23, 2026
Mid-Morning
58°F 14°C
Light Fog
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
64°F 18°C
Partly Cloudy
Mild temperatures up to 70°F 21°C, sunny through the afternoon, turning overcast this evening, with lower humidity and steady pressure. Winds turning from the NNW to the NNE at 12 mph 19 km/h. Gusts up to 21 mph 34 km/h.
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