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Marcelline IL Weather - Clear - 73°F
Clear
73°F
Updated 3:38 am
Feels Like 79°F
Humidity 93%
Wind SSE 5 mph
Barometer  30.17 in
Dew Point 71°F
Marcelline IL Weather - Clear - 23°C
Clear
23°C
Updated 3:38 am
Feels Like 26°C
Humidity 93%
Wind SSE 8 km/h
Barometer  102.1 kPa
Dew Point 22°C
Marcelline, IL Weather and Current Conditionsmarcelline il weather forecast

Marcelline, IL Weather Forecast

Marcelline Illinois WeatherMarcelline, Illinois Weather Weather Forecast
14 day API forecast for Marcelline, Illinois. Note. The 7-day weather forecast for Marcelline, IL is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Marcelline, IL Weather Forecast Dated: 338 AM Thu Sep 17 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.

Thursday, September 17, 2026

Mid-Morning
Marcelline Weather - 2026-09-17 - Morning - Sunny
75°F 24°C
Sunny
Mid-Afternoon
Marcelline Weather - 2026-09-17 - Afternoon - Cloudy
89°F 32°C
Cloudy
Early-Evening
Marcelline Weather - 2026-09-17 - Evening - Sunny
83°F 29°C
Sunny
Warm and summery around 89°F 32°C (feels like 95°F 35°C), sunny in the morning, overcast in the afternoon, and sunny this evening, with lower humidity and steady pressure.

Friday, September 18, 2026

Mid-Morning
Marcelline Weather - 2026-09-18 - Morning - Partly Cloudy
73°F 23°C
Partly Cloudy
Mid-Afternoon
Marcelline Weather - 2026-09-18 - Afternoon - Sunny
92°F 33°C
Sunny
Early-Evening
Marcelline Weather - 2026-09-18 - Evening - Sunny
87°F 31°C
Sunny
Hot and sweltering around 92°F 33°C (heat index 97°F 36°C), partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds out of the SSW at 7 mph 11 km/h.

Saturday, September 19, 2026

Mid-Morning
Marcelline Weather - 2026-09-19 - Morning - Overcast
74°F 23°C
Overcast
Mid-Afternoon
Marcelline Weather - 2026-09-19 - Afternoon - Scattered Showers
79°F 26°C
Scattered Showers
Early-Evening
Marcelline Weather - 2026-09-19 - Evening - Light Showers
76°F 25°C
Light Showers
Enjoyable around 79°F 26°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds switching from the NNW to the SSW at 7 mph 10 km/h.

Sunday, September 20, 2026

Mid-Morning
Marcelline Weather - 2026-09-20 - Morning - Cloudy
71°F 22°C
Cloudy
Mid-Afternoon
Marcelline Weather - 2026-09-20 - Afternoon - Light Showers
78°F 25°C
Light Showers
Early-Evening
Marcelline Weather - 2026-09-20 - Evening - Sunny
72°F 22°C
Sunny
Mild temperatures up to 78°F 25°C, drier morning followed by scattered afternoon showers, with steady humidity and steady pressure. Winds moving from the NW to the ENE at 10 mph 16 km/h.

Monday, September 21, 2026

Mid-Morning
Marcelline Weather - 2026-09-21 - Morning - Light Fog
62°F 16°C
Light Fog
Mid-Afternoon
Marcelline Weather - 2026-09-21 - Afternoon - Scattered Showers
68°F 20°C
Scattered Showers
Early-Evening
Marcelline Weather - 2026-09-21 - Evening - Overcast
64°F 18°C
Overcast
Mild with a high of 68°F 20°C, scattered downpours possible, with lower humidity and steady pressure.

Tuesday, September 22, 2026

Mid-Morning
Marcelline Weather - 2026-09-22 - Morning - Light Fog
61°F 16°C
Light Fog
Mid-Afternoon
Marcelline Weather - 2026-09-22 - Afternoon - Sunny
74°F 24°C
Sunny
Early-Evening
Marcelline Weather - 2026-09-22 - Evening - Sunny
71°F 22°C
Sunny
Pleasant near 74°F 24°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.

Wednesday, September 23, 2026

Mid-Morning
Marcelline Weather - 2026-09-23 - Morning - Sunny
70°F 21°C
Sunny
Mid-Afternoon
Marcelline Weather - 2026-09-23 - Afternoon - Light Showers
68°F 20°C
Light Showers
Early-Evening
Marcelline Weather - 2026-09-23 - Evening - Scattered Showers
63°F 18°C
Scattered Showers
Comfortable with temperatures reaching 68°F 20°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds swinging from the SW to the WNW at 11 mph 18 km/h. Gusts up to 24 mph 39 km/h.

Thursday, September 24, 2026

Mid-Morning
Marcelline Weather - 2026-09-24 - Morning - Sunny
58°F 15°C
Sunny
Mid-Afternoon
Marcelline Weather - 2026-09-24 - Afternoon - Sunny
67°F 20°C
Sunny
Early-Evening
Marcelline Weather - 2026-09-24 - Evening - Sunny
59°F 16°C
Sunny
Cool with a high near 67°F 20°C, cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds shifting from the WNW to the NW at 10 mph 15 km/h.

Friday, September 25, 2026

Mid-Morning
Marcelline Weather - 2026-09-25 - Morning - Sunny
55°F 13°C
Sunny
Mid-Afternoon
Marcelline Weather - 2026-09-25 - Afternoon - Sunny
66°F 19°C
Sunny
Early-Evening
Marcelline Weather - 2026-09-25 - Evening - Sunny
59°F 15°C
Sunny
Refreshing around 66°F 19°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the NW to the ENE at 6 mph 10 km/h.

Saturday, September 26, 2026

Mid-Morning
Marcelline Weather - 2026-09-26 - Morning - Sunny
56°F 13°C
Sunny
Mid-Afternoon
Marcelline Weather - 2026-09-26 - Afternoon - Sunny
71°F 22°C
Sunny
Early-Evening
Marcelline Weather - 2026-09-26 - Evening - Sunny
64°F 18°C
Sunny
Mild with a high of 71°F 22°C, sunny throughout the day, with lower humidity and barometric pressure falling.

Sunday, September 27, 2026

Mid-Morning
Marcelline Weather - 2026-09-27 - Morning - Sunny
60°F 15°C
Sunny
Mid-Afternoon
Marcelline Weather - 2026-09-27 - Afternoon - Overcast
77°F 25°C
Overcast
Early-Evening
Marcelline Weather - 2026-09-27 - Evening - Overcast
70°F 22°C
Overcast
Pleasant near 77°F 25°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds switching from the S to the SSE at 9 mph 15 km/h.

Monday, September 28, 2026

Mid-Morning
Marcelline Weather - 2026-09-28 - Morning - Overcast
64°F 18°C
Overcast
Mid-Afternoon
Marcelline Weather - 2026-09-28 - Afternoon - Sunny
83°F 28°C
Sunny
Early-Evening
Marcelline Weather - 2026-09-28 - Evening - Sunny
76°F 25°C
Sunny
Balmy with temperatures reaching 83°F 28°C, cloudy in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds moving from the SSW to the S at 6 mph 9 km/h.

Tuesday, September 29, 2026

Mid-Morning
Marcelline Weather - 2026-09-29 - Morning - Cloudy
67°F 20°C
Cloudy
Mid-Afternoon
Marcelline Weather - 2026-09-29 - Afternoon - Partly Cloudy
76°F 25°C
Partly Cloudy
Early-Evening
Marcelline Weather - 2026-09-29 - Evening - Cloudy
70°F 21°C
Cloudy
Enjoyable around 76°F 25°C, cloudy through the afternoon, turning overcast this evening, with increasing humidity and steady pressure. Winds swinging from the SSW to the NE at 9 mph 14 km/h.

Wednesday, September 30, 2026

Mid-Morning
Marcelline Weather - 2026-09-30 - Morning - Cloudy
61°F 16°C
Cloudy
Mid-Afternoon
Marcelline Weather - 2026-09-30 - Afternoon - Overcast
71°F 22°C
Overcast
Early-Evening
Marcelline Weather - 2026-09-30 - Evening - Partly Cloudy
68°F 21°C
Partly Cloudy
Mild temperatures up to 71°F 22°C, cloudy throughout the day, with steady humidity and steady pressure. Winds out of the ENE at 9 mph 14 km/h. Gusts up to 20 mph 32 km/h.

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Weather by the Numbers

Thu, 17th
Marcelline IL Weather - Thursday, Sep 17, 2026 - Patchy Rain Nearby
Hi: 90°F 32°C
Lo: 72°F 22°C
Sunrise 06:48 AM
Sunset 07:10 PM
Wind SW 8 mph13 km/h
Dew Point 69°F21°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 11% *
Humidity 59%
Fri, 18th
Marcelline IL Weather - Friday, Sep 18, 2026 - Patchy Rain Nearby
Hi: 94°F 34°C
Lo: 70°F 21°C
Sunrise 06:49 AM
Sunset 07:08 PM
Wind SE 9 mph14 km/h
Dew Point 71°F22°C
uv Index 6
Barometric Pressure 30.09 in1019 mb
POP 17% *
Humidity 65%
Sat, 19th
Marcelline IL Weather - Saturday, Sep 19, 2026 - Patchy Rain Nearby
Hi: 80°F 27°C
Lo: 72°F 22°C
Sunrise 06:50 AM
Sunset 07:07 PM
Wind SSW 8 mph13 km/h
Dew Point 68°F20°C
uv Index 1
Barometric Pressure 29.88 in1012 mb
POP 24% *
Humidity 77%
Sun, 20th
Marcelline IL Weather - Sunday, Sep 20, 2026 - Patchy Rain Nearby
Hi: 79°F 26°C
Lo: 63°F 17°C
Sunrise 06:51 AM
Sunset 07:05 PM
Wind NNW 9 mph15 km/h
Dew Point 69°F21°C
uv Index 6
Barometric Pressure 29.88 in1012 mb
POP 25% *
Humidity 80%
Mon, 21st
Marcelline IL Weather - Monday, Sep 21, 2026 - Patchy Rain Nearby
Hi: 69°F 20°C
Lo: 60°F 16°C
Sunrise 06:51 AM
Sunset 07:03 PM
Wind NNE 7 mph11 km/h
Dew Point 61°F16°C
uv Index 4
Barometric Pressure 30 in1016 mb
POP 27% *
Humidity 85%
Tue, 22nd
Marcelline IL Weather - Tuesday, Sep 22, 2026 - Sunny
Hi: 75°F 24°C
Lo: 56°F 13°C
Sunrise 06:52 AM
Sunset 07:02 PM
Wind WNW 6 mph10 km/h
Dew Point 55°F13°C
uv Index 6
Barometric Pressure 30.06 in1018 mb
POP 4% *
Humidity 60%
Wed, 23rd
Marcelline IL Weather - Wednesday, Sep 23, 2026 - Patchy Rain Nearby
Hi: 72°F 22°C
Lo: 56°F 14°C
Sunrise 06:53 AM
Sunset 07:00 PM
Wind SW 14 mph23 km/h
Dew Point 60°F16°C
uv Index 5
Barometric Pressure 29.97 in1015 mb
POP 26% *
Humidity 70%
Thu, 24th
Marcelline IL Weather - Thursday, Sep 24, 2026 - Cloudy
Hi: 68°F 20°C
Lo: 52°F 11°C
Sunrise 06:54 AM
Sunset 06:58 PM
Wind NW 17 mph27 km/h
Dew Point 39°F4°C
uv Index 4
Barometric Pressure 30.03 in1017 mb
POP 2% *
Humidity 37%
Fri, 25th
Marcelline IL Weather - Friday, Sep 25, 2026 - Sunny
Hi: 67°F 19°C
Lo: 48°F 9°C
Sunrise 06:55 AM
Sunset 06:57 PM
Wind NNW 11 mph17 km/h
Dew Point 38°F4°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 41%
Sat, 26th
Marcelline IL Weather - Saturday, Sep 26, 2026 - Sunny
Hi: 72°F 22°C
Lo: 49°F 9°C
Sunrise 06:56 AM
Sunset 06:55 PM
Wind S 6 mph10 km/h
Dew Point 41°F5°C
uv Index 5
Barometric Pressure 30.24 in1024 mb
POP 1% *
Humidity 41%
Sun, 27th
Marcelline IL Weather - Sunday, Sep 27, 2026 - Sunny
Hi: 78°F 26°C
Lo: 52°F 11°C
Sunrise 06:57 AM
Sunset 06:53 PM
Wind S 13 mph22 km/h
Dew Point 37°F3°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 5% *
Humidity 29%
Mon, 28th
Marcelline IL Weather - Monday, Sep 28, 2026 - Partly Cloudy
Hi: 84°F 29°C
Lo: 57°F 14°C
Sunrise 06:58 AM
Sunset 06:52 PM
Wind SSW 11 mph17 km/h
Dew Point 40°F4°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 28%
Tue, 29th
Marcelline IL Weather - Tuesday, Sep 29, 2026 - Cloudy
Hi: 78°F 25°C
Lo: 63°F 17°C
Sunrise 06:59 AM
Sunset 06:50 PM
Wind W 4 mph6 km/h
Dew Point 46°F8°C
uv Index 5
Barometric Pressure 30 in1016 mb
POP 5% *
Humidity 39%
Wed, 30th
Marcelline IL Weather - Wednesday, Sep 30, 2026 - Cloudy
Hi: 73°F 23°C
Lo: 61°F 16°C
Sunrise 07:00 AM
Sunset 06:48 PM
Wind ENE 10 mph17 km/h
Dew Point 53°F12°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 14% *
Humidity 63%
* POP = Probability of Precipitation. Data for 12:00 PM.