Oak Run, IL 14 Day Weather - WeatherWorld.com
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Oak Run, IL Weather Forecast


Oak Run, IL Weather Forecast Dated: 1237 AM Fri Sep 04 2026
Expect a very warm period with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Friday, September 4, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
93°F 34°C
Overcast
Early-Evening
89°F 32°C
Overcast
Sizzling hot near 93°F 34°C with a heat index reaching 98°F 37°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the SW to the SE at 8 mph 12 km/h.
Saturday, September 5, 2026
Mid-Morning
78°F 26°C
Nearby Thunderstorms
Mid-Afternoon
90°F 32°C
Sunny
Early-Evening
83°F 28°C
Sunny
Hot and sweltering around 90°F 32°C (heat index 96°F 36°C), locally heavy thunderstorms at times, with steady humidity and steady pressure. Winds switching from the NNE to the ENE at 8 mph 12 km/h.
Sunday, September 6, 2026
Mid-Morning
70°F 21°C
Partly Cloudy
Mid-Afternoon
82°F 28°C
Overcast
Early-Evening
76°F 25°C
Overcast
Quite warm around 82°F 28°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the ENE to the E at 11 mph 17 km/h. Gusts up to 21 mph 35 km/h.
Monday, September 7, 2026
Mid-Morning
67°F 20°C
Sunny
Mid-Afternoon
78°F 26°C
Sunny
Early-Evening
72°F 22°C
Sunny
Mild temperatures up to 78°F 26°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds out of the E at 10 mph 15 km/h.
Tuesday, September 8, 2026
Mid-Morning
69°F 21°C
Overcast
Mid-Afternoon
89°F 32°C
Overcast
Early-Evening
87°F 31°C
Sunny
Very warm with a high of 89°F 32°C, overcast in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and barometric pressure falling. Winds blowing from the S at 11 mph 18 km/h. Gusts up to 30 mph 49 km/h.
Wednesday, September 9, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
91°F 33°C
Overcast
Early-Evening
83°F 29°C
Sunny
Very hot with a high of 91°F 33°C, feeling closer to 96°F 36°C in the humidity, cloudy in the morning, becoming partly cloudy through the afternoon and evening, with increasing humidity and steady pressure. Winds turning from the W to the E at 9 mph 14 km/h.
Thursday, September 10, 2026
Mid-Morning
78°F 25°C
Overcast
Mid-Afternoon
85°F 29°C
Scattered Showers
Early-Evening
80°F 27°C
Scattered Showers
Balmy with temperatures reaching 85°F 29°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds out of the ENE at 11 mph 18 km/h.
Friday, September 11, 2026
Mid-Morning
69°F 21°C
Sunny
Mid-Afternoon
78°F 25°C
Overcast
Early-Evening
75°F 24°C
Sunny
Enjoyable around 78°F 25°C, cloudy in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds blowing from the ESE at 15 mph 24 km/h. Gusts up to 27 mph 42 km/h.
Saturday, September 12, 2026
Mid-Morning
70°F 21°C
Sunny
Mid-Afternoon
89°F 32°C
Sunny
Early-Evening
83°F 28°C
Sunny
Warm temperatures up to 89°F 32°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds swinging from the SE to the ESE at 13 mph 21 km/h. Gusts up to 25 mph 40 km/h.
Sunday, September 13, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
100°F 38°C
Sunny
Early-Evening
94°F 35°C
Cloudy
Sweltering heat reaching 100°F 38°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds shifting from the S to the SSE at 10 mph 16 km/h.
Monday, September 14, 2026
Mid-Morning
82°F 28°C
Overcast
Mid-Afternoon
88°F 31°C
Scattered Showers
Early-Evening
80°F 27°C
Scattered Showers
Warm and summery near 88°F 31°C, scattered downpours possible, with steady humidity and steady pressure. Winds turning from the WSW to the S at 9 mph 15 km/h.
Tuesday, September 15, 2026
Mid-Morning
77°F 25°C
Light Showers
Mid-Afternoon
96°F 36°C
Partly Cloudy
Early-Evening
87°F 31°C
Sunny
Hot and sweltering around 96°F 36°C, morning showers, giving way to clearing skies, with lower humidity and steady pressure. Winds switching from the WSW to the NNE at 11 mph 17 km/h. Gusts up to 22 mph 36 km/h.
Wednesday, September 16, 2026
Mid-Morning
72°F 22°C
Sunny
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
77°F 26°C
Sunny
Quite warm around 86°F 30°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds moving from the ENE to the E at 9 mph 15 km/h.
Thursday, September 17, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
78°F 25°C
Scattered Showers
Early-Evening
81°F 27°C
Overcast
Mild temperatures up to 78°F 25°C, scattered downpours possible, with lower humidity and barometric pressure falling. Winds tapering down from ENE 17 mph 28 km/h to E 8 mph 13 km/h.
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