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Merriam IL Weather - Clear - 63°F
Clear
63°F
Updated 9:00 am
Feels Like 56°F
Humidity 79%
Wind N 0 mph
Barometer  30.02 in
Dew Point 57°F
Merriam IL Weather - Clear - 17°C
Clear
17°C
Updated 9:00 am
Feels Like 14°C
Humidity 79%
Wind N 0 km/h
Barometer  101.6 kPa
Dew Point 14°C
Merriam, IL Weather and Current Conditionsmerriam il weather forecast

Merriam, IL Weather Forecast

Merriam Illinois WeatherMerriam, Illinois Weather Weather Forecast
14 day API Merriam, IL weather forecast. Note. Our 7-day weather forecast for Merriam, Illinois is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
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
Merriam Weather - 2026-10-11 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Merriam Weather - 2026-10-11 - Afternoon - Sunny
84°F 29°C
Sunny
Early-Evening
Merriam Weather - 2026-10-11 - Evening - Sunny
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
Merriam Weather - 2026-10-12 - Morning - Sunny
74°F 23°C
Sunny
Mid-Afternoon
Merriam Weather - 2026-10-12 - Afternoon - Sunny
92°F 33°C
Sunny
Early-Evening
Merriam Weather - 2026-10-12 - Evening - Sunny
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
Merriam Weather - 2026-10-13 - Morning - Sunny
77°F 25°C
Sunny
Mid-Afternoon
Merriam Weather - 2026-10-13 - Afternoon - Sunny
94°F 35°C
Sunny
Early-Evening
Merriam Weather - 2026-10-13 - Evening - Sunny
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
Merriam Weather - 2026-10-14 - Morning - Light Rain
80°F 26°C
Light Rain
Mid-Afternoon
Merriam Weather - 2026-10-14 - Afternoon - Drizzle
79°F 26°C
Drizzle
Early-Evening
Merriam Weather - 2026-10-14 - Evening - Scattered Showers
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
Merriam Weather - 2026-10-15 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Merriam Weather - 2026-10-15 - Afternoon - Rain
68°F 20°C
Rain
Early-Evening
Merriam Weather - 2026-10-15 - Evening - Rain
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
Merriam Weather - 2026-10-16 - Morning - Overcast
58°F 15°C
Overcast
Mid-Afternoon
Merriam Weather - 2026-10-16 - Afternoon - Sunny
57°F 14°C
Sunny
Early-Evening
Merriam Weather - 2026-10-16 - Evening - Sunny
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
Merriam Weather - 2026-10-17 - Morning - Sunny
38°F 3°C
Sunny
Mid-Afternoon
Merriam Weather - 2026-10-17 - Afternoon - Sunny
47°F 9°C
Sunny
Early-Evening
Merriam Weather - 2026-10-17 - Evening - Sunny
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
Merriam Weather - 2026-10-18 - Morning - Sunny
40°F 4°C
Sunny
Mid-Afternoon
Merriam Weather - 2026-10-18 - Afternoon - Sunny
55°F 13°C
Sunny
Early-Evening
Merriam Weather - 2026-10-18 - Evening - Sunny
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
Merriam Weather - 2026-10-19 - Morning - Sunny
47°F 8°C
Sunny
Mid-Afternoon
Merriam Weather - 2026-10-19 - Afternoon - Sunny
65°F 18°C
Sunny
Early-Evening
Merriam Weather - 2026-10-19 - Evening - Sunny
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
Merriam Weather - 2026-10-20 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Merriam Weather - 2026-10-20 - Afternoon - Overcast
69°F 20°C
Overcast
Early-Evening
Merriam Weather - 2026-10-20 - Evening - Overcast
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
Merriam Weather - 2026-10-21 - Morning - Overcast
57°F 14°C
Overcast
Mid-Afternoon
Merriam Weather - 2026-10-21 - Afternoon - Overcast
72°F 22°C
Overcast
Early-Evening
Merriam Weather - 2026-10-21 - Evening - Sunny
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
Merriam Weather - 2026-10-22 - Morning - Sunny
58°F 15°C
Sunny
Mid-Afternoon
Merriam Weather - 2026-10-22 - Afternoon - Sunny
75°F 24°C
Sunny
Early-Evening
Merriam Weather - 2026-10-22 - Evening - Sunny
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
Merriam Weather - 2026-10-23 - Morning - Sunny
62°F 17°C
Sunny
Mid-Afternoon
Merriam Weather - 2026-10-23 - Afternoon - Sunny
77°F 25°C
Sunny
Early-Evening
Merriam Weather - 2026-10-23 - Evening - Sunny
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
Merriam Weather - 2026-10-24 - Morning - Sunny
65°F 19°C
Sunny
Mid-Afternoon
Merriam Weather - 2026-10-24 - Afternoon - Sunny
79°F 26°C
Sunny
Early-Evening
Merriam Weather - 2026-10-24 - Evening - Sunny
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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Weather by the Numbers

Sun, 11th
Merriam IL Weather - Sunday, Oct 11, 2026 - Sunny
Hi: 85°F 29°C
Lo: 56°F 13°C
Sunrise 06:59 AM
Sunset 06:21 PM
Wind NNW 9 mph14 km/h
Dew Point 55°F13°C
uv Index 2
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 48%
Mon, 12th
Merriam IL Weather - Monday, Oct 12, 2026 - Sunny
Hi: 92°F 33°C
Lo: 64°F 18°C
Sunrise 07:00 AM
Sunset 06:19 PM
Wind SW 15 mph24 km/h
Dew Point 51°F10°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 0% *
Humidity 27%
Tue, 13th
Merriam IL Weather - Tuesday, Oct 13, 2026 - Sunny
Hi: 94°F 35°C
Lo: 67°F 20°C
Sunrise 07:01 AM
Sunset 06:18 PM
Wind SW 15 mph23 km/h
Dew Point 62°F17°C
uv Index 8
Barometric Pressure 29.91 in1013 mb
POP 1% *
Humidity 41%
Wed, 14th
Merriam IL Weather - Wednesday, Oct 14, 2026 - Cloudy
Hi: 87°F 30°C
Lo: 70°F 21°C
Sunrise 07:02 AM
Sunset 06:17 PM
Wind W 12 mph19 km/h
Dew Point 70°F21°C
uv Index 6
Barometric Pressure 29.94 in1014 mb
POP 12% *
Humidity 59%
Thu, 15th
Merriam IL Weather - Thursday, Oct 15, 2026 - Patchy Rain Nearby
Hi: 71°F 22°C
Lo: 64°F 18°C
Sunrise 07:03 AM
Sunset 06:15 PM
Wind ENE 6 mph10 km/h
Dew Point 65°F18°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 35% *
Humidity 87%
Fri, 16th
Merriam IL Weather - Friday, Oct 16, 2026 - Patchy Rain Nearby
Hi: 68°F 20°C
Lo: 43°F 6°C
Sunrise 07:04 AM
Sunset 06:14 PM
Wind NW 23 mph38 km/h
Dew Point 41°F5°C
uv Index 3
Barometric Pressure 30.12 in1020 mb
POP 4% *
Humidity 53%
Sat, 17th
Merriam IL Weather - Saturday, Oct 17, 2026 - Sunny
Hi: 48°F 9°C
Lo: 34°F 1°C
Sunrise 07:05 AM
Sunset 06:12 PM
Wind N 15 mph23 km/h
Dew Point 13°F-11°C
uv Index 3
Barometric Pressure 30.53 in1034 mb
POP 1% *
Humidity 28%
Sun, 18th
Merriam IL Weather - Sunday, Oct 18, 2026 - Sunny
Hi: 56°F 13°C
Lo: 32°F 0°C
Sunrise 07:06 AM
Sunset 06:11 PM
Wind S 10 mph15 km/h
Dew Point 16°F-9°C
uv Index 3
Barometric Pressure 30.59 in1036 mb
POP 0% *
Humidity 27%
Mon, 19th
Merriam IL Weather - Monday, Oct 19, 2026 - Sunny
Hi: 66°F 19°C
Lo: 37°F 3°C
Sunrise 07:07 AM
Sunset 06:10 PM
Wind SW 13 mph21 km/h
Dew Point 22°F-6°C
uv Index 5
Barometric Pressure 30.47 in1032 mb
POP 0% *
Humidity 23%
Tue, 20th
Merriam IL Weather - Tuesday, Oct 20, 2026 - Partly Cloudy
Hi: 69°F 21°C
Lo: 43°F 6°C
Sunrise 07:08 AM
Sunset 06:08 PM
Wind S 7 mph12 km/h
Dew Point 28°F-2°C
uv Index 5
Barometric Pressure 30.39 in1029 mb
POP 6% *
Humidity 26%
Wed, 21st
Merriam IL Weather - Wednesday, Oct 21, 2026 - Overcast
Hi: 73°F 23°C
Lo: 50°F 10°C
Sunrise 07:09 AM
Sunset 06:07 PM
Wind S 8 mph12 km/h
Dew Point 34°F1°C
uv Index 4
Barometric Pressure 30.3 in1026 mb
POP 9% *
Humidity 30%
Thu, 22nd
Merriam IL Weather - Thursday, Oct 22, 2026 - Sunny
Hi: 75°F 24°C
Lo: 50°F 10°C
Sunrise 07:10 AM
Sunset 06:06 PM
Wind S 6 mph10 km/h
Dew Point 36°F2°C
uv Index 6
Barometric Pressure 30.27 in1025 mb
POP 1% *
Humidity 30%
Fri, 23rd
Merriam IL Weather - Friday, Oct 23, 2026 - Sunny
Hi: 77°F 25°C
Lo: 54°F 12°C
Sunrise 07:11 AM
Sunset 06:04 PM
Wind SSW 6 mph9 km/h
Dew Point 39°F4°C
uv Index 6
Barometric Pressure 30.21 in1023 mb
POP 1% *
Humidity 30%
Sat, 24th
Merriam IL Weather - Saturday, Oct 24, 2026 - Sunny
Hi: 80°F 27°C
Lo: 58°F 14°C
Sunrise 07:12 AM
Sunset 06:03 PM
Wind WNW 6 mph9 km/h
Dew Point 51°F11°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 1% *
Humidity 43%
* POP = Probability of Precipitation. Data for 12:00 PM.