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


Mermet, IL Weather Forecast Dated: 707 PM Sat Sep 19 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.
Saturday, September 19, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
100°F 38°C
Sunny
Early-Evening
92°F 33°C
Partly Cloudy
Scorching hot near 100°F 38°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling. Winds out of the W at 9 mph 15 km/h.
Sunday, September 20, 2026
Mid-Morning
83°F 28°C
Overcast
Mid-Afternoon
100°F 38°C
Overcast
Early-Evening
90°F 32°C
Overcast
Sweltering heat reaching 100°F 38°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds switching from the W to the NE at 5 mph 8 km/h.
Monday, September 21, 2026
Mid-Morning
76°F 25°C
Partly Cloudy
Mid-Afternoon
88°F 31°C
Scattered Showers
Early-Evening
71°F 21°C
Partly Cloudy
Quite warm around 88°F 31°C, locally heavy downpours at times, with increasing humidity and steady pressure. Winds moving from the NE to the N at 8 mph 13 km/h.
Tuesday, September 22, 2026
Mid-Morning
67°F 20°C
Sunny
Mid-Afternoon
84°F 29°C
Partly Cloudy
Early-Evening
76°F 25°C
Overcast
Warm temperatures up to 84°F 29°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds swinging from the NNE to the N at 10 mph 16 km/h.
Wednesday, September 23, 2026
Mid-Morning
65°F 18°C
Sunny
Mid-Afternoon
81°F 27°C
Overcast
Early-Evening
72°F 22°C
Overcast
Very warm with a high of 81°F 27°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds blowing from the N at 11 mph 17 km/h.
Thursday, September 24, 2026
Mid-Morning
62°F 17°C
Fog
Mid-Afternoon
78°F 26°C
Sunny
Early-Evening
72°F 22°C
Cloudy
Pleasant near 78°F 26°C, partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds turning from the SE to the NE at 8 mph 12 km/h.
Friday, September 25, 2026
Mid-Morning
67°F 19°C
Light Fog
Mid-Afternoon
79°F 26°C
Overcast
Early-Evening
74°F 24°C
Overcast
Comfortable with temperatures reaching 79°F 26°C, overcast throughout the day, with lower humidity and steady pressure. Winds switching from the E to the ENE at 8 mph 12 km/h.
Saturday, September 26, 2026
Mid-Morning
65°F 19°C
Overcast
Mid-Afternoon
79°F 26°C
Sunny
Early-Evening
71°F 22°C
Sunny
Enjoyable around 79°F 26°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds blowing from the ENE at 10 mph 16 km/h.
Sunday, September 27, 2026
Mid-Morning
54°F 12°C
Light Showers
Mid-Afternoon
56°F 13°C
Light Showers
Early-Evening
71°F 22°C
Scattered Showers
Brisk around 56°F 13°C, locally heavy downpours at times, with lower humidity and steady pressure.
Monday, September 28, 2026
Mid-Morning
72°F 22°C
Sunny
Mid-Afternoon
88°F 31°C
Sunny
Early-Evening
81°F 28°C
Sunny
Very warm with a high of 88°F 31°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and steady pressure.
Tuesday, September 29, 2026
Mid-Morning
72°F 22°C
Overcast
Mid-Afternoon
81°F 27°C
Overcast
Early-Evening
69°F 21°C
Overcast
Warm and summery near 81°F 27°C, overcast throughout the day, with increasing humidity and steady pressure. Winds swinging from the SW to the WSW at 9 mph 15 km/h.
Wednesday, September 30, 2026
Mid-Morning
64°F 18°C
Light Showers
Mid-Afternoon
70°F 21°C
Scattered Showers
Early-Evening
67°F 19°C
Overcast
Comfortable with temperatures reaching 70°F 21°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds shifting from the NNW to the NNE at 5 mph 8 km/h.
Thursday, October 1, 2026
Mid-Morning
64°F 18°C
Cloudy
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
70°F 21°C
Scattered Showers
Enjoyable around 75°F 24°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure.
Friday, October 2, 2026
Mid-Morning
65°F 18°C
Sunny
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
67°F 19°C
Sunny
Mild temperatures up to 77°F 25°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the NNE to the N at 9 mph 14 km/h.
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