Mermet Lake, IL 14 Day Weather
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Mermet Lake, IL Weather Forecast


Mermet Lake, IL Weather Forecast Dated: 430 PM Mon Sep 28 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Monday, September 28, 2026
Mid-Morning
64°F 18°C
Partly Cloudy
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
75°F 23°C
Sunny
Warm and summery near 84°F 29°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure.
Tuesday, September 29, 2026
Mid-Morning
68°F 20°C
Sunny
Mid-Afternoon
88°F 31°C
Cloudy
Early-Evening
79°F 27°C
Sunny
Balmy with temperatures reaching 88°F 31°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling.
Wednesday, September 30, 2026
Mid-Morning
72°F 22°C
Overcast
Mid-Afternoon
95°F 35°C
Sunny
Early-Evening
87°F 31°C
Overcast
Sizzling hot with 95°F 35°C, overcast in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds turning from the S to the SSE at 10 mph 16 km/h. Gusts up to 23 mph 38 km/h.
Thursday, October 1, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
95°F 35°C
Sunny
Early-Evening
87°F 31°C
Sunny
Hot temperatures near 95°F 35°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds switching from the SSW to the S at 10 mph 17 km/h. Gusts up to 20 mph 33 km/h.
Friday, October 2, 2026
Mid-Morning
71°F 21°C
Light Showers
Mid-Afternoon
62°F 17°C
Scattered Showers
Early-Evening
58°F 14°C
Light Showers
Refreshing around 62°F 17°C, scattered downpours possible, with steady humidity and barometric pressure rising. Winds increasing from the NNW at 2 mph 3 km/h to NE at 13 mph 20 km/h. Gusts up to 25 mph 40 km/h.
Saturday, October 3, 2026
Mid-Morning
59°F 15°C
Fog
Mid-Afternoon
64°F 18°C
Scattered Showers
Early-Evening
64°F 18°C
Heavy Rain Showers
Mildly cool near 64°F 18°C, locally heavy downpours at times, with steady humidity and steady pressure.
Sunday, October 4, 2026
Mid-Morning
64°F 18°C
Light Showers
Mid-Afternoon
68°F 20°C
Fog
Early-Evening
67°F 20°C
Scattered Showers
Comfortable with temperatures reaching 68°F 20°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds swinging from the E to the NW at 9 mph 14 km/h.
Monday, October 5, 2026
Mid-Morning
58°F 14°C
Sunny
Mid-Afternoon
69°F 21°C
Sunny
Early-Evening
60°F 16°C
Sunny
Enjoyable around 69°F 21°C, sunny throughout the day, with lower humidity and steady pressure. Winds shifting from the NW to the NNE at 9 mph 15 km/h. Gusts up to 21 mph 33 km/h.
Tuesday, October 6, 2026
Mid-Morning
51°F 11°C
Sunny
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
60°F 16°C
Overcast
Refreshing around 66°F 19°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.
Wednesday, October 7, 2026
Mid-Morning
57°F 14°C
Overcast
Mid-Afternoon
69°F 21°C
Overcast
Early-Evening
63°F 18°C
Overcast
Mild with a high of 69°F 21°C, overcast throughout the day, with steady humidity and steady pressure.
Thursday, October 8, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
67°F 20°C
Sunny
Pleasant near 75°F 24°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure falling.
Friday, October 9, 2026
Mid-Morning
55°F 13°C
Overcast
Mid-Afternoon
64°F 18°C
Partly Cloudy
Early-Evening
58°F 15°C
Sunny
Cool with a high near 64°F 18°C, overcast in the morning, sunny in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds turning from the NNE to the SE at 10 mph 17 km/h. Gusts up to 20 mph 33 km/h.
Saturday, October 10, 2026
Mid-Morning
50°F 10°C
Overcast
Mid-Afternoon
58°F 15°C
Overcast
Early-Evening
54°F 13°C
Overcast
Refreshing around 58°F 15°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds switching from the ESE to the NNW at 11 mph 18 km/h. Gusts up to 22 mph 35 km/h.
Sunday, October 11, 2026
Mid-Morning
51°F 11°C
Sunny
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
58°F 15°C
Partly Cloudy
Mildly cool near 65°F 18°C, cloudy in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds moving from the NNW to the W at 6 mph 10 km/h.
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