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Middletown, IL Weather Forecast
Middletown, IL Weather Forecast Dated: 1051 AM Sun Sep 13 2026
Expect a mild stretch 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.
Sunday, September 13, 2026
Mid-Morning
67°F 19°C
Overcast
Mid-Afternoon
79°F 26°C
Overcast
Early-Evening
70°F 21°C
Cloudy
Pleasant near 79°F 26°C, overcast throughout the day, with steady humidity and steady pressure. Winds turning from the NNE to the NE at 10 mph 16 km/h.
Monday, September 14, 2026
Mid-Morning
63°F 17°C
Overcast
Mid-Afternoon
81°F 27°C
Overcast
Early-Evening
79°F 26°C
Partly Cloudy
Balmy with temperatures reaching 81°F 27°C, overcast through the afternoon, turning sunny this evening, with lower humidity and barometric pressure falling. Winds switching from the ESE to the SSE at 15 mph 24 km/h. Gusts up to 28 mph 45 km/h.
Tuesday, September 15, 2026
Mid-Morning
76°F 24°C
Scattered Showers
Mid-Afternoon
85°F 29°C
Scattered Showers
Early-Evening
81°F 28°C
Scattered Showers
Very warm near 85°F 29°C, though humidity makes it feel like 88°F 31°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the SSW to the N at 7 mph 11 km/h.
Wednesday, September 16, 2026
Mid-Morning
67°F 20°C
Scattered Showers
Mid-Afternoon
84°F 29°C
Partly Cloudy
Early-Evening
76°F 25°C
Scattered Showers
Warm and summery around 84°F 29°C (feels like 88°F 31°C), periods of heavy rain and gusty conditions, with lower humidity and steady pressure.
Thursday, September 17, 2026
Mid-Morning
66°F 19°C
Light Showers
Mid-Afternoon
77°F 25°C
Scattered Showers
Early-Evening
72°F 22°C
Overcast
Mild with a high of 77°F 25°C, scattered downpours possible, with lower humidity and steady pressure. Winds swinging from the NNE to the NE at 10 mph 15 km/h.
Friday, September 18, 2026
Mid-Morning
68°F 20°C
Partly Cloudy
Mid-Afternoon
80°F 27°C
Cloudy
Early-Evening
72°F 23°C
Sunny
Warm and summery near 80°F 27°C, cloudy in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds shifting from the E to the ESE at 11 mph 17 km/h. Gusts up to 22 mph 35 km/h.
Saturday, September 19, 2026
Mid-Morning
73°F 23°C
Sunny
Mid-Afternoon
92°F 34°C
Sunny
Early-Evening
86°F 30°C
Sunny
Sizzling hot near 92°F 34°C with a heat index reaching 96°F 35°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds turning from the S to the SW at 8 mph 12 km/h.
Sunday, September 20, 2026
Mid-Morning
67°F 20°C
Light Showers
Mid-Afternoon
72°F 22°C
Overcast
Early-Evening
67°F 19°C
Scattered Showers
Enjoyable around 72°F 22°C, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the SSE to the ENE at 14 mph 23 km/h. Gusts up to 21 mph 35 km/h.
Monday, September 21, 2026
Mid-Morning
58°F 14°C
Light Showers
Mid-Afternoon
55°F 13°C
Light Showers
Early-Evening
54°F 12°C
Overcast
Brisk around 55°F 13°C, showers through the afternoon, tapering off by evening, with steady humidity and steady pressure. Winds moving from the ENE to the NNE at 11 mph 18 km/h. Gusts up to 20 mph 31 km/h.
Tuesday, September 22, 2026
Mid-Morning
51°F 11°C
Scattered Showers
Mid-Afternoon
50°F 10°C
Scattered Showers
Early-Evening
50°F 10°C
Scattered Showers
Cool and brisk at 50°F 10°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds NW at 15 mph 24 km/h. Gusts up to 27 mph 42 km/h.
Wednesday, September 23, 2026
Mid-Morning
51°F 11°C
Scattered Showers
Mid-Afternoon
57°F 14°C
Overcast
Early-Evening
54°F 12°C
Overcast
Chilly near 57°F 14°C, scattered downpours possible, with lower humidity and steady pressure. Winds shifting from the NW to the NNW at 12 mph 19 km/h. Gusts up to 25 mph 40 km/h.
Thursday, September 24, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
63°F 17°C
Scattered Showers
Early-Evening
61°F 16°C
Scattered Showers
Cool with a high near 63°F 17°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds turning from the N to the NNE at 8 mph 13 km/h.
Friday, September 25, 2026
Mid-Morning
57°F 14°C
Sunny
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
63°F 18°C
Sunny
Enjoyable around 70°F 21°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the NNE to the ENE at 7 mph 11 km/h.
Saturday, September 26, 2026
Mid-Morning
60°F 16°C
Sunny
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
67°F 20°C
Sunny
Mild temperatures up to 74°F 23°C, sunny throughout the day, with lower humidity and steady pressure.
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