Thayer, IL 14 Day Weather - 62689 WeatherWorld.com
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Thayer, IL Weather Forecast


Thayer, IL Weather Forecast Dated: 610 PM Fri Sep 04 2026
Expect a hot stretch with plenty of sunshine and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.
Friday, September 4, 2026
Mid-Morning
85°F 30°C
Sunny
Mid-Afternoon
101°F 38°C
Sunny
Early-Evening
92°F 34°C
Sunny
Scorching heat reaching 101°F 38°C, feeling like 111°F 44°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds turning from the SW to the SSW at 11 mph 18 km/h. Gusts up to 21 mph 34 km/h.
Saturday, September 5, 2026
Mid-Morning
86°F 30°C
Sunny
Mid-Afternoon
102°F 39°C
Overcast
Early-Evening
86°F 30°C
Light Showers
Sweltering heat reaching 102°F 39°C, mainly dry until evening showers arrive, with increasing humidity and steady pressure. Winds switching from the NW to the SSW at 4 mph 6 km/h.
Sunday, September 6, 2026
Mid-Morning
73°F 23°C
Sunny
Mid-Afternoon
91°F 33°C
Cloudy
Early-Evening
79°F 26°C
Overcast
Sizzling hot with 91°F 33°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds ENE at 12 mph 19 km/h. Gusts up to 25 mph 40 km/h.
Monday, September 7, 2026
Mid-Morning
69°F 21°C
Sunny
Mid-Afternoon
89°F 32°C
Sunny
Early-Evening
80°F 27°C
Cloudy
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 ESE to the E at 10 mph 15 km/h.
Tuesday, September 8, 2026
Mid-Morning
74°F 24°C
Sunny
Mid-Afternoon
97°F 36°C
Sunny
Early-Evening
91°F 33°C
Sunny
Very hot with a high of 97°F 36°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds shifting from the S to the SSE at 11 mph 18 km/h. Gusts up to 20 mph 33 km/h.
Wednesday, September 9, 2026
Mid-Morning
85°F 29°C
Scattered Showers
Mid-Afternoon
94°F 34°C
Sunny
Early-Evening
84°F 29°C
Partly Cloudy
Very hot with temperatures reaching 94°F 34°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds turning from the WSW to the N at 10 mph 17 km/h.
Thursday, September 10, 2026
Mid-Morning
71°F 21°C
Cloudy
Mid-Afternoon
85°F 30°C
Overcast
Early-Evening
77°F 25°C
Overcast
Balmy with temperatures reaching 85°F 30°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds switching from the N to the NE at 9 mph 14 km/h.
Friday, September 11, 2026
Mid-Morning
62°F 16°C
Overcast
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
72°F 23°C
Cloudy
Enjoyable around 75°F 24°C, overcast in the morning, becoming cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the ESE to the SE at 10 mph 17 km/h.
Saturday, September 12, 2026
Mid-Morning
63°F 17°C
Light Showers
Mid-Afternoon
79°F 26°C
Overcast
Early-Evening
81°F 27°C
Overcast
Mild temperatures up to 79°F 26°C, morning showers, giving way to clearing skies, with lower humidity and barometric pressure falling. Winds swinging from the SSE to the S at 14 mph 22 km/h. Gusts up to 26 mph 42 km/h.
Sunday, September 13, 2026
Mid-Morning
84°F 29°C
Sunny
Mid-Afternoon
104°F 40°C
Sunny
Early-Evening
98°F 37°C
Sunny
Sweltering heat reaching 104°F 40°C, sunny throughout the day, with lower humidity and steady pressure. Winds shifting from the SW to the SSW at 14 mph 22 km/h. Gusts up to 28 mph 45 km/h.
Monday, September 14, 2026
Mid-Morning
91°F 33°C
Sunny
Mid-Afternoon
106°F 41°C
Sunny
Early-Evening
98°F 37°C
Sunny
Dangerously hot temperatures around 106°F 41°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the WSW to the SSW at 12 mph 19 km/h. Gusts up to 24 mph 38 km/h.
Tuesday, September 15, 2026
Mid-Morning
90°F 32°C
Sunny
Mid-Afternoon
104°F 40°C
Sunny
Early-Evening
96°F 36°C
Sunny
Dangerously hot with a high of 104°F 40°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the WSW to the SSW at 12 mph 18 km/h. Gusts up to 22 mph 35 km/h.
Wednesday, September 16, 2026
Mid-Morning
90°F 32°C
Sunny
Mid-Afternoon
104°F 40°C
Sunny
Early-Evening
97°F 36°C
Sunny
Scorching hot near 104°F 40°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the WSW to the SW at 8 mph 12 km/h.
Thursday, September 17, 2026
Mid-Morning
91°F 33°C
Sunny
Mid-Afternoon
105°F 41°C
Sunny
Early-Evening
93°F 34°C
Sunny
Sweltering heat reaching 105°F 41°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds swinging from the SSW to the SE at 9 mph 14 km/h.
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