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


Merriam, IL Weather Forecast Dated: 900 AM Sun Oct 11 2026
Expect a mild stretch with plenty of sunshine and occasional showers over the coming period. comfortable humidity and a stable pattern will dominate.
Sunday, October 11, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
73°F 23°C
Sunny
Warm and summery near 84°F 29°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the N to the SSW at 3 mph 5 km/h.
Monday, October 12, 2026
Mid-Morning
74°F 23°C
Sunny
Mid-Afternoon
92°F 33°C
Sunny
Early-Evening
81°F 28°C
Sunny
Hot and sweltering around 92°F 33°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds switching from the SW to the SSW at 11 mph 18 km/h. Gusts up to 26 mph 41 km/h.
Tuesday, October 13, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
94°F 35°C
Sunny
Early-Evening
87°F 31°C
Sunny
Very hot with a high of 94°F 35°C, feeling closer to 97°F 36°C in the humidity, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds moving from the SW to the SSW at 12 mph 19 km/h. Gusts up to 24 mph 39 km/h.
Wednesday, October 14, 2026
Mid-Morning
80°F 26°C
Light Rain
Mid-Afternoon
79°F 26°C
Drizzle
Early-Evening
74°F 23°C
Scattered Showers
Mild temperatures up to 79°F 26°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds swinging from the SW to the W at 7 mph 11 km/h.
Thursday, October 15, 2026
Mid-Morning
66°F 19°C
Overcast
Mid-Afternoon
68°F 20°C
Rain
Early-Evening
69°F 21°C
Rain
Mild with a high of 68°F 20°C, clouds and showers taking over for the afternoon and evening, with steady humidity and barometric pressure falling.
Friday, October 16, 2026
Mid-Morning
58°F 15°C
Overcast
Mid-Afternoon
57°F 14°C
Sunny
Early-Evening
49°F 10°C
Sunny
Cool and brisk at 57°F 14°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure rising. Winds shifting from the NW to the NNW at 23 mph 36 km/h. Gusts up to 38 mph 61 km/h.
Saturday, October 17, 2026
Mid-Morning
38°F 3°C
Sunny
Mid-Afternoon
47°F 9°C
Sunny
Early-Evening
40°F 5°C
Sunny
Chilly near 47°F 9°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the NNW to the SE at 8 mph 13 km/h.
Sunday, October 18, 2026
Mid-Morning
40°F 4°C
Sunny
Mid-Afternoon
55°F 13°C
Sunny
Early-Evening
46°F 8°C
Sunny
Crisp with a high near 55°F 13°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds out of the S at 11 mph 18 km/h.
Monday, October 19, 2026
Mid-Morning
47°F 8°C
Sunny
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
54°F 13°C
Sunny
Refreshing around 65°F 18°C, sunny throughout the day, with steady humidity and steady pressure. Winds blowing from the SW at 12 mph 19 km/h.
Tuesday, October 20, 2026
Mid-Morning
52°F 11°C
Sunny
Mid-Afternoon
69°F 20°C
Overcast
Early-Evening
59°F 15°C
Overcast
Mild with a high of 69°F 20°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling.
Wednesday, October 21, 2026
Mid-Morning
57°F 14°C
Overcast
Mid-Afternoon
72°F 22°C
Overcast
Early-Evening
61°F 16°C
Sunny
Pleasant near 72°F 22°C, overcast in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure.
Thursday, October 22, 2026
Mid-Morning
58°F 15°C
Sunny
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
65°F 18°C
Sunny
Comfortable with temperatures reaching 75°F 24°C, sunny throughout the day, with steady humidity and steady pressure.
Friday, October 23, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
67°F 20°C
Sunny
Enjoyable around 77°F 25°C, sunny throughout the day, with steady humidity and steady pressure.
Saturday, October 24, 2026
Mid-Morning
65°F 19°C
Sunny
Mid-Afternoon
79°F 26°C
Sunny
Early-Evening
71°F 22°C
Sunny
Mild temperatures up to 79°F 26°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling.
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