Simpson Church, IL 14 Day Weather
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Simpson Church, IL Weather Forecast


Simpson Church, IL Weather Forecast Dated: 418 AM Sun Sep 13 2026
Expect a very warm period with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate. Isolated storms at times.
Sunday, September 13, 2026
Mid-Morning
76°F 25°C
Overcast
Mid-Afternoon
91°F 33°C
Partly Cloudy
Early-Evening
80°F 27°C
Sunny
Very hot with temperatures reaching 91°F 33°C, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds picking up from SSE at 2 mph 4 km/h to NNE at 12 mph 19 km/h. Gusts up to 20 mph 32 km/h.
Monday, September 14, 2026
Mid-Morning
67°F 20°C
Partly Cloudy
Mid-Afternoon
83°F 28°C
Overcast
Early-Evening
77°F 25°C
Overcast
Balmy with temperatures reaching 83°F 28°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling. Winds switching from the ENE to the ESE at 10 mph 16 km/h.
Tuesday, September 15, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
102°F 39°C
Overcast
Early-Evening
84°F 29°C
Scattered Showers
Dangerously hot temperatures around 102°F 39°C, locally heavy downpours at times, with steady humidity and steady pressure. A stray shower or storm late in the day. Winds moving from the SSW to the ENE at 8 mph 12 km/h.
Wednesday, September 16, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
94°F 34°C
Overcast
Early-Evening
88°F 31°C
Sunny
Sizzling hot near 94°F 34°C with a heat index reaching 97°F 36°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Thursday, September 17, 2026
Mid-Morning
82°F 28°C
Partly Cloudy
Mid-Afternoon
98°F 37°C
Sunny
Early-Evening
88°F 31°C
Partly Cloudy
Hot and sweltering around 98°F 37°C (heat index 101°F 38°C), partly cloudy through the afternoon, turning sunny this evening, with steady humidity and steady pressure. Winds swinging from the SW to the SE at 8 mph 13 km/h.
Friday, September 18, 2026
Mid-Morning
73°F 23°C
Fog
Mid-Afternoon
83°F 28°C
Overcast
Early-Evening
80°F 27°C
Overcast
Very warm near 83°F 28°C, though humidity makes it feel like 86°F 30°C, overcast through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure.
Saturday, September 19, 2026
Mid-Morning
77°F 25°C
Light Fog
Mid-Afternoon
91°F 33°C
Partly Cloudy
Early-Evening
79°F 26°C
Nearby Thunderstorms
Sizzling hot near 91°F 33°C with a heat index reaching 96°F 35°C, periods of heavy thunderstorms, with steady humidity and steady pressure. Winds building from ESE at 6 mph 9 km/h to WSW at 14 mph 22 km/h. Gusts up to 21 mph 34 km/h.
Sunday, September 20, 2026
Mid-Morning
75°F 24°C
Overcast
Mid-Afternoon
80°F 27°C
Scattered Showers
Early-Evening
74°F 23°C
Light Showers
Quite warm reaching 80°F 27°C, feeling like 83°F 29°C during peak afternoon, scattered downpours possible, with steady humidity and steady pressure. Winds turning from the WSW to the ESE at 8 mph 12 km/h.
Monday, September 21, 2026
Mid-Morning
65°F 18°C
Light Showers
Mid-Afternoon
65°F 18°C
Scattered Showers
Early-Evening
63°F 17°C
Light Showers
Refreshing around 65°F 18°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds switching from the ENE to the NE at 13 mph 21 km/h. Gusts up to 26 mph 42 km/h.
Tuesday, September 22, 2026
Mid-Morning
67°F 20°C
Scattered Showers
Mid-Afternoon
74°F 23°C
Light Showers
Early-Evening
72°F 22°C
Light Showers
Mild with a high of 74°F 23°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds moving from the ENE to the NNE at 7 mph 11 km/h.
Wednesday, September 23, 2026
Mid-Morning
68°F 20°C
Partly Cloudy
Mid-Afternoon
75°F 24°C
Scattered Showers
Early-Evening
70°F 22°C
Scattered Showers
Pleasant near 75°F 24°C, scattered downpours possible, with steady humidity and steady pressure. Winds swinging from the E to the NE at 7 mph 11 km/h.
Thursday, September 24, 2026
Mid-Morning
69°F 21°C
Light Fog
Mid-Afternoon
77°F 25°C
Scattered Showers
Early-Evening
74°F 23°C
Scattered Showers
Comfortable with temperatures reaching 77°F 25°C, locally heavy downpours at times, with lower humidity and steady pressure.
Friday, September 25, 2026
Mid-Morning
72°F 22°C
Overcast
Mid-Afternoon
82°F 28°C
Sunny
Early-Evening
77°F 25°C
Overcast
Quite warm around 82°F 28°C, overcast in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure.
Saturday, September 26, 2026
Mid-Morning
73°F 23°C
Sunny
Mid-Afternoon
83°F 29°C
Sunny
Early-Evening
78°F 26°C
Partly Cloudy
Warm temperatures up to 83°F 29°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and barometric pressure falling.
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