Dennison, IL 14 Day Weather - 62423 WeatherWorld.com
Quick Weather Clicks
Settings
Sun & Moon


Dennison, IL Weather Forecast


Dennison, IL Weather Forecast Dated: 627 PM Wed Sep 09 2026
Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.
Wednesday, September 9, 2026
Mid-Morning
76°F 24°C
Sunny
Mid-Afternoon
86°F 30°C
Drizzle
Early-Evening
83°F 28°C
Partly Cloudy
Warm and summery around 86°F 30°C (feels like 91°F 33°C), drier morning followed by scattered afternoon showers, with lower humidity and steady pressure. Winds turning from the SSW to the W at 10 mph 16 km/h.
Thursday, September 10, 2026
Mid-Morning
69°F 21°C
Light Fog
Mid-Afternoon
69°F 21°C
Light Showers
Early-Evening
70°F 21°C
Overcast
Comfortable with temperatures reaching 69°F 21°C, clouds building with afternoon showers likely, with steady humidity and steady pressure.
Friday, September 11, 2026
Mid-Morning
65°F 18°C
Overcast
Mid-Afternoon
80°F 27°C
Overcast
Early-Evening
77°F 25°C
Overcast
Quite warm around 80°F 27°C, overcast throughout the day, with lower humidity and steady pressure.
Saturday, September 12, 2026
Mid-Morning
69°F 21°C
Sunny
Mid-Afternoon
86°F 30°C
Partly Cloudy
Early-Evening
82°F 28°C
Sunny
Warm temperatures up to 86°F 30°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and steady pressure.
Sunday, September 13, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
87°F 30°C
Overcast
Early-Evening
83°F 28°C
Partly Cloudy
Very warm with a high of 87°F 30°C, partly cloudy in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure.
Monday, September 14, 2026
Mid-Morning
75°F 24°C
Cloudy
Mid-Afternoon
92°F 33°C
Sunny
Early-Evening
88°F 32°C
Sunny
Very hot with a high of 92°F 33°C, feeling closer to 96°F 36°C in the humidity, partly cloudy in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds switching from the SSE to the S at 12 mph 19 km/h. Gusts up to 23 mph 37 km/h.
Tuesday, September 15, 2026
Mid-Morning
75°F 24°C
Scattered Showers
Mid-Afternoon
82°F 28°C
Scattered Showers
Early-Evening
73°F 23°C
Scattered Showers
Warm and summery around 82°F 28°C (feels like 86°F 30°C), periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds increasing from the SE at 2 mph 4 km/h to NNE at 10 mph 16 km/h.
Wednesday, September 16, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
79°F 26°C
Partly Cloudy
Early-Evening
76°F 25°C
Overcast
Enjoyable around 79°F 26°C, overcast in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds out of the NNE at 7 mph 11 km/h.
Thursday, September 17, 2026
Mid-Morning
69°F 20°C
Partly Cloudy
Mid-Afternoon
73°F 23°C
Scattered Showers
Early-Evening
67°F 20°C
Scattered Showers
Mild temperatures up to 73°F 23°C, locally heavy downpours at times, with increasing humidity and steady pressure. Winds shifting from the NE to the NNE at 6 mph 10 km/h.
Friday, September 18, 2026
Mid-Morning
66°F 19°C
Sunny
Mid-Afternoon
82°F 28°C
Sunny
Early-Evening
79°F 26°C
Sunny
Very warm with a high of 82°F 28°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Saturday, September 19, 2026
Mid-Morning
73°F 23°C
Overcast
Mid-Afternoon
96°F 35°C
Nearby Thunderstorms
Early-Evening
92°F 33°C
Cloudy
Hot and sweltering around 96°F 35°C (heat index 100°F 38°C), locally heavy thunderstorms at times, with lower humidity and barometric pressure falling. Winds turning from the SSW to the S at 11 mph 18 km/h. Gusts up to 21 mph 32 km/h.
Sunday, September 20, 2026
Mid-Morning
76°F 24°C
Sunny
Mid-Afternoon
90°F 32°C
Sunny
Early-Evening
85°F 29°C
Sunny
Very hot with a high of 90°F 32°C, feeling closer to 93°F 34°C in the humidity, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the NNW to the NE at 9 mph 14 km/h.
Monday, September 21, 2026
Mid-Morning
70°F 21°C
Light Showers
Mid-Afternoon
80°F 27°C
Overcast
Early-Evening
77°F 25°C
Partly Cloudy
Warm and summery around 80°F 27°C (feels like 83°F 28°C), early showers breaking for a drier afternoon, with lower humidity and steady pressure. Winds moving from the WSW to the ENE at 8 mph 12 km/h.
Tuesday, September 22, 2026
Mid-Morning
71°F 22°C
Overcast
Mid-Afternoon
80°F 27°C
Light Showers
Early-Evening
75°F 24°C
Scattered Showers
Quite warm reaching 80°F 27°C, feeling like 83°F 28°C during peak afternoon, scattered downpours possible, with lower humidity and steady pressure. Winds swinging from the SSW to the NNW at 7 mph 11 km/h.
Dennison, IL Weather Radar Map
Use the map search tool if you want to place a location marker on the radar map...
Weather World