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


Shawnee, IL Weather Forecast Dated: 500 AM Wed Sep 16 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.
Wednesday, September 16, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
98°F 37°C
Partly Cloudy
Early-Evening
91°F 33°C
Overcast
Very hot with temperatures reaching 98°F 37°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds turning from the SW to the SSE at 7 mph 12 km/h.
Thursday, September 17, 2026
Mid-Morning
84°F 29°C
Sunny
Mid-Afternoon
101°F 38°C
Partly Cloudy
Early-Evening
91°F 33°C
Overcast
Sweltering heat reaching 101°F 38°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure falling. Winds switching from the SW to the SSW at 5 mph 8 km/h.
Friday, September 18, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
99°F 37°C
Partly Cloudy
Early-Evening
84°F 29°C
Scattered Showers
Very hot with a high of 99°F 37°C, feeling closer to 102°F 39°C in the humidity, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds increasing from the WNW at 2 mph 4 km/h to NNE at 13 mph 20 km/h. Gusts up to 21 mph 35 km/h.
Saturday, September 19, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
99°F 37°C
Overcast
Early-Evening
86°F 30°C
Overcast
Hot temperatures near 99°F 37°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds swinging from the SSW to the SE at 7 mph 10 km/h.
Sunday, September 20, 2026
Mid-Morning
85°F 29°C
Sunny
Mid-Afternoon
95°F 35°C
Overcast
Early-Evening
83°F 29°C
Partly Cloudy
Hot and sweltering around 95°F 35°C (heat index 98°F 37°C), partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with increasing humidity and steady pressure. Winds blowing from the SW at 11 mph 17 km/h. Gusts up to 23 mph 37 km/h.
Monday, September 21, 2026
Mid-Morning
78°F 26°C
Scattered Showers
Mid-Afternoon
92°F 33°C
Overcast
Early-Evening
75°F 24°C
Cloudy
Very hot with temperatures reaching 92°F 33°C, locally heavy downpours at times, with increasing humidity and steady pressure. Winds S at 12 mph 19 km/h.
Tuesday, September 22, 2026
Mid-Morning
74°F 23°C
Light Fog
Mid-Afternoon
84°F 29°C
Overcast
Early-Evening
77°F 26°C
Sunny
Balmy with temperatures reaching 84°F 29°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds switching from the W to the SW at 3 mph 6 km/h.
Wednesday, September 23, 2026
Mid-Morning
74°F 23°C
Overcast
Mid-Afternoon
87°F 31°C
Cloudy
Early-Evening
81°F 28°C
Partly Cloudy
Quite warm around 87°F 31°C, cloudy through the afternoon, turning overcast this evening, with steady humidity and barometric pressure falling.
Thursday, September 24, 2026
Mid-Morning
73°F 23°C
Overcast
Mid-Afternoon
75°F 24°C
Scattered Showers
Early-Evening
68°F 20°C
Sunny
Mild temperatures up to 75°F 24°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds moving from the WNW to the NNW at 11 mph 17 km/h. Gusts up to 22 mph 35 km/h.
Friday, September 25, 2026
Mid-Morning
58°F 15°C
Sunny
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
67°F 20°C
Sunny
Mild with a high of 72°F 22°C, sunny throughout the day, with lower humidity and steady pressure. Winds swinging from the NNW to the NNE at 4 mph 7 km/h.
Saturday, September 26, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
79°F 26°C
Sunny
Early-Evening
71°F 22°C
Sunny
Pleasant near 79°F 26°C, sunny throughout the day, with lower humidity and steady pressure. Winds out of the ENE at 7 mph 12 km/h.
Sunday, September 27, 2026
Mid-Morning
69°F 20°C
Sunny
Mid-Afternoon
87°F 31°C
Sunny
Early-Evening
79°F 26°C
Sunny
Balmy with temperatures reaching 87°F 31°C, sunny throughout the day, with steady humidity and steady pressure. Winds blowing from the SSE at 8 mph 13 km/h.
Monday, September 28, 2026
Mid-Morning
76°F 25°C
Sunny
Mid-Afternoon
87°F 31°C
Partly Cloudy
Early-Evening
83°F 28°C
Overcast
Quite warm around 87°F 31°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds switching from the SSE to the SE at 8 mph 12 km/h.
Tuesday, September 29, 2026
Mid-Morning
79°F 26°C
Cloudy
Mid-Afternoon
85°F 30°C
Cloudy
Early-Evening
80°F 26°C
Overcast
Quite warm reaching 85°F 30°C, feeling like 90°F 32°C during peak afternoon, overcast throughout the day, with steady humidity and steady pressure. Winds moving from the SSE to the NE at 5 mph 7 km/h.
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