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


Jasper, IL Weather Forecast Dated: 340 PM Thu Sep 03 2026
Expect a hot stretch with plenty of sunshine and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Thursday, September 3, 2026
Mid-Morning
83°F 29°C
Sunny
Mid-Afternoon
98°F 37°C
Sunny
Early-Evening
90°F 32°C
Sunny
Sizzling hot near 98°F 37°C with a heat index reaching 104°F 40°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the SW to the SSE at 6 mph 10 km/h.
Friday, September 4, 2026
Mid-Morning
87°F 30°C
Sunny
Mid-Afternoon
101°F 39°C
Cloudy
Early-Evening
94°F 34°C
Scattered Showers
Sweltering temperatures near 101°F 39°C with a heat index of 104°F 40°C, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the WSW to the SSE at 8 mph 13 km/h.
Saturday, September 5, 2026
Mid-Morning
89°F 31°C
Sunny
Mid-Afternoon
102°F 39°C
Sunny
Early-Evening
89°F 31°C
Sunny
Dangerously hot with a high of 102°F 39°C (heat index near 105°F 40°C), sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds moving from the WSW to the SW at 10 mph 16 km/h.
Sunday, September 6, 2026
Mid-Morning
78°F 26°C
Sunny
Mid-Afternoon
92°F 34°C
Sunny
Early-Evening
81°F 27°C
Sunny
Hot temperatures near 92°F 34°C, sunny throughout the day, with lower humidity and steady pressure. Winds out of the NE at 11 mph 17 km/h. Gusts up to 23 mph 37 km/h.
Monday, September 7, 2026
Mid-Morning
70°F 21°C
Sunny
Mid-Afternoon
90°F 32°C
Cloudy
Early-Evening
82°F 28°C
Sunny
Very hot with a high of 90°F 32°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds blowing from the NE at 8 mph 13 km/h.
Tuesday, September 8, 2026
Mid-Morning
78°F 25°C
Partly Cloudy
Mid-Afternoon
97°F 36°C
Overcast
Early-Evening
91°F 33°C
Sunny
Very hot with temperatures reaching 97°F 36°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds turning from the SE to the SSE at 10 mph 16 km/h. Gusts up to 20 mph 32 km/h.
Wednesday, September 9, 2026
Mid-Morning
89°F 32°C
Overcast
Mid-Afternoon
106°F 41°C
Cloudy
Early-Evening
94°F 34°C
Partly Cloudy
Dangerously hot temperatures around 106°F 41°C, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds switching from the SW to the NE at 11 mph 17 km/h.
Thursday, September 10, 2026
Mid-Morning
90°F 32°C
Partly Cloudy
Mid-Afternoon
109°F 43°C
Sunny
Early-Evening
96°F 36°C
Partly Cloudy
Dangerously hot with a high of 109°F 43°C, partly cloudy throughout the day, with steady humidity and barometric pressure falling. Winds moving from the WSW to the ESE at 8 mph 13 km/h.
Friday, September 11, 2026
Mid-Morning
92°F 33°C
Scattered Showers
Mid-Afternoon
106°F 41°C
Scattered Showers
Early-Evening
92°F 34°C
Sunny
Scorching hot near 106°F 41°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds swinging from the WSW to the ESE at 9 mph 14 km/h.
Saturday, September 12, 2026
Mid-Morning
89°F 32°C
Sunny
Mid-Afternoon
106°F 41°C
Sunny
Early-Evening
99°F 38°C
Partly Cloudy
Sweltering heat reaching 106°F 41°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds shifting from the SW to the SSW at 8 mph 13 km/h.
Sunday, September 13, 2026
Mid-Morning
93°F 34°C
Cloudy
Mid-Afternoon
104°F 40°C
Partly Cloudy
Early-Evening
90°F 33°C
Overcast
Dangerously hot temperatures around 104°F 40°C, partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with increasing humidity and steady pressure. Winds turning from the WSW to the NW at 11 mph 18 km/h. Gusts up to 22 mph 36 km/h.
Monday, September 14, 2026
Mid-Morning
84°F 29°C
Scattered Showers
Mid-Afternoon
103°F 40°C
Sunny
Early-Evening
90°F 32°C
Sunny
Dangerously hot with a high of 103°F 40°C, locally heavy downpours at times, with lower humidity and barometric pressure falling. Winds switching from the SSW to the WSW at 8 mph 13 km/h.
Tuesday, September 15, 2026
Mid-Morning
70°F 21°C
Light Fog
Mid-Afternoon
83°F 28°C
Sunny
Early-Evening
74°F 23°C
Sunny
Quite warm around 83°F 28°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the WNW to the E at 9 mph 14 km/h.
Wednesday, September 16, 2026
Mid-Morning
68°F 20°C
Sunny
Mid-Afternoon
82°F 28°C
Sunny
Early-Evening
72°F 23°C
Sunny
Warm temperatures up to 82°F 28°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the NNW to the NNE at 9 mph 14 km/h.
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