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Mascoutah IL Weather - Rain - 71°F
Rain
71°F
Updated 8:54 am
Feels Like 78°F
Humidity 96%
Wind N 0 mph
Barometer  30.05 in
Dew Point 70°F
Mascoutah IL Weather - Rain - 22°C
Rain
22°C
Updated 8:54 am
Feels Like 26°C
Humidity 96%
Wind N 0 km/h
Barometer  101.8 kPa
Dew Point 21°C
Mascoutah, IL Weather and Current Conditionsmascoutah il weather forecast

Mascoutah, IL Weather Forecast

Mascoutah Illinois WeatherMascoutah, Illinois Weather Weather Forecast
14 Day API Mascoutah, IL Weather Forecast. Note: Our 7 day Mascoutah, Illinois weather forecast is our most reliable, and specific forecast. This model should only be used as a probable scenario. Forecasting more than 7 days ahead is challenging.
Mascoutah, IL Weather Forecast Dated: 854 AM Thu Sep 10 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.

Thursday, September 10, 2026

Mid-Morning
Mascoutah Weather - 2026-09-10 - Morning - Heavy Rain
75°F 24°C
Heavy Rain
Mid-Afternoon
Mascoutah Weather - 2026-09-10 - Afternoon - Scattered Showers
81°F 27°C
Scattered Showers
Early-Evening
Mascoutah Weather - 2026-09-10 - Evening - Overcast
74°F 23°C
Overcast
Warm and summery around 81°F 27°C (feels like 84°F 29°C), periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds turning from the W to the NNE at 8 mph 13 km/h.

Friday, September 11, 2026

Mid-Morning
Mascoutah Weather - 2026-09-11 - Morning - Overcast
69°F 21°C
Overcast
Mid-Afternoon
Mascoutah Weather - 2026-09-11 - Afternoon - Overcast
83°F 28°C
Overcast
Early-Evening
Mascoutah Weather - 2026-09-11 - Evening - Cloudy
76°F 25°C
Cloudy
Balmy with temperatures reaching 83°F 28°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling. Winds switching from the ENE to the ESE at 4 mph 7 km/h.

Saturday, September 12, 2026

Mid-Morning
Mascoutah Weather - 2026-09-12 - Morning - Sunny
73°F 23°C
Sunny
Mid-Afternoon
Mascoutah Weather - 2026-09-12 - Afternoon - Overcast
90°F 32°C
Overcast
Early-Evening
Mascoutah Weather - 2026-09-12 - Evening - Partly Cloudy
83°F 29°C
Partly Cloudy
Sizzling hot with 90°F 32°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure.

Sunday, September 13, 2026

Mid-Morning
Mascoutah Weather - 2026-09-13 - Morning - Sunny
78°F 26°C
Sunny
Mid-Afternoon
Mascoutah Weather - 2026-09-13 - Afternoon - Sunny
96°F 36°C
Sunny
Early-Evening
Mascoutah Weather - 2026-09-13 - Evening - Partly Cloudy
89°F 32°C
Partly Cloudy
Hot temperatures near 96°F 36°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds moving from the S to the E at 9 mph 14 km/h.

Monday, September 14, 2026

Mid-Morning
Mascoutah Weather - 2026-09-14 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
Mascoutah Weather - 2026-09-14 - Afternoon - Cloudy
99°F 37°C
Cloudy
Early-Evening
Mascoutah Weather - 2026-09-14 - Evening - Partly Cloudy
93°F 34°C
Partly Cloudy
Very hot with a high of 99°F 37°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds swinging from the SW to the SSW at 11 mph 18 km/h. Gusts up to 24 mph 38 km/h.

Tuesday, September 15, 2026

Mid-Morning
Mascoutah Weather - 2026-09-15 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
Mascoutah Weather - 2026-09-15 - Afternoon - Partly Cloudy
95°F 35°C
Partly Cloudy
Early-Evening
Mascoutah Weather - 2026-09-15 - Evening - Partly Cloudy
81°F 27°C
Partly Cloudy
Very hot with a high of 95°F 35°C, feeling closer to 99°F 37°C in the humidity, sunny in the morning, cloudy in the afternoon, and overcast this evening, with increasing humidity and steady pressure. Winds shifting from the SW to the WSW at 7 mph 11 km/h.

Wednesday, September 16, 2026

Mid-Morning
Mascoutah Weather - 2026-09-16 - Morning - Partly Cloudy
78°F 25°C
Partly Cloudy
Mid-Afternoon
Mascoutah Weather - 2026-09-16 - Afternoon - Cloudy
84°F 29°C
Cloudy
Early-Evening
Mascoutah Weather - 2026-09-16 - Evening - Light Showers
83°F 28°C
Light Showers
Warm and summery around 84°F 29°C (feels like 87°F 31°C), drier conditions through late afternoon before showers move in, with lower humidity and steady pressure.

Thursday, September 17, 2026

Mid-Morning
Mascoutah Weather - 2026-09-17 - Morning - Sunny
83°F 29°C
Sunny
Mid-Afternoon
Mascoutah Weather - 2026-09-17 - Afternoon - Sunny
100°F 38°C
Sunny
Early-Evening
Mascoutah Weather - 2026-09-17 - Evening - Overcast
85°F 30°C
Overcast
Sweltering temperatures near 100°F 38°C with a heat index of 104°F 40°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds increasing from the SSW at 8 mph 13 km/h to E at 16 mph 26 km/h. Gusts up to 26 mph 42 km/h.

Friday, September 18, 2026

Mid-Morning
Mascoutah Weather - 2026-09-18 - Morning - Light Showers
59°F 15°C
Light Showers
Mid-Afternoon
Mascoutah Weather - 2026-09-18 - Afternoon - Overcast
74°F 23°C
Overcast
Early-Evening
Mascoutah Weather - 2026-09-18 - Evening - Sunny
67°F 20°C
Sunny
Mild temperatures up to 74°F 23°C, morning showers, giving way to clearing skies, with lower humidity and steady pressure. Winds out of the NNE at 11 mph 18 km/h. Gusts up to 21 mph 33 km/h.

Saturday, September 19, 2026

Mid-Morning
Mascoutah Weather - 2026-09-19 - Morning - Sunny
56°F 13°C
Sunny
Mid-Afternoon
Mascoutah Weather - 2026-09-19 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Mascoutah Weather - 2026-09-19 - Evening - Sunny
65°F 18°C
Sunny
Mild with a high of 72°F 22°C, sunny throughout the day, with lower humidity and steady pressure. Winds blowing from the NNE at 9 mph 14 km/h.

Sunday, September 20, 2026

Mid-Morning
Mascoutah Weather - 2026-09-20 - Morning - Cloudy
59°F 15°C
Cloudy
Mid-Afternoon
Mascoutah Weather - 2026-09-20 - Afternoon - Sunny
75°F 24°C
Sunny
Early-Evening
Mascoutah Weather - 2026-09-20 - Evening - Cloudy
68°F 20°C
Cloudy
Pleasant near 75°F 24°C, cloudy in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds SE at 8 mph 13 km/h.

Monday, September 21, 2026

Mid-Morning
Mascoutah Weather - 2026-09-21 - Morning - Overcast
61°F 16°C
Overcast
Mid-Afternoon
Mascoutah Weather - 2026-09-21 - Afternoon - Overcast
84°F 29°C
Overcast
Early-Evening
Mascoutah Weather - 2026-09-21 - Evening - Cloudy
82°F 28°C
Cloudy
Balmy with temperatures reaching 84°F 29°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling. Winds out of the SSW at 17 mph 27 km/h. Gusts up to 24 mph 39 km/h.

Tuesday, September 22, 2026

Mid-Morning
Mascoutah Weather - 2026-09-22 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Mascoutah Weather - 2026-09-22 - Afternoon - Light Showers
62°F 17°C
Light Showers
Early-Evening
Mascoutah Weather - 2026-09-22 - Evening - Light Showers
62°F 17°C
Light Showers
Refreshing around 62°F 17°C, drier morning followed by showers lasting through evening, with increasing humidity and steady pressure. Winds turning from the SW to the WSW at 6 mph 10 km/h.

Wednesday, September 23, 2026

Mid-Morning
Mascoutah Weather - 2026-09-23 - Morning - Sunny
57°F 14°C
Sunny
Mid-Afternoon
Mascoutah Weather - 2026-09-23 - Afternoon - Sunny
71°F 22°C
Sunny
Early-Evening
Mascoutah Weather - 2026-09-23 - Evening - Sunny
63°F 18°C
Sunny
Mild temperatures up to 71°F 22°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the NNW to the NNE at 13 mph 21 km/h. Gusts up to 23 mph 38 km/h.

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Weather by the Numbers

Thu, 10th
Mascoutah IL Weather - Thursday, Sep 10, 2026 - Patchy Rain Nearby
Hi: 81°F 27°C
Lo: 70°F 21°C
Sunrise 06:36 AM
Sunset 07:15 PM
Wind NW 9 mph15 km/h
Dew Point 69°F21°C
uv Index 2
Barometric Pressure 30 in1016 mb
POP 21% *
Humidity 67%
Fri, 11th
Mascoutah IL Weather - Friday, Sep 11, 2026 - Sunny
Hi: 83°F 28°C
Lo: 64°F 18°C
Sunrise 06:37 AM
Sunset 07:14 PM
Wind ESE 7 mph11 km/h
Dew Point 62°F17°C
uv Index 4
Barometric Pressure 29.97 in1015 mb
POP 3% *
Humidity 56%
Sat, 12th
Mascoutah IL Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 90°F 32°C
Lo: 67°F 20°C
Sunrise 06:38 AM
Sunset 07:12 PM
Wind SSE 4 mph6 km/h
Dew Point 63°F17°C
uv Index 7
Barometric Pressure 29.94 in1014 mb
POP 2% *
Humidity 47%
Sun, 13th
Mascoutah IL Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 96°F 36°C
Lo: 72°F 22°C
Sunrise 06:39 AM
Sunset 07:11 PM
Wind SSW 10 mph15 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 9% *
Humidity 45%
Mon, 14th
Mascoutah IL Weather - Monday, Sep 14, 2026 - Sunny
Hi: 100°F 38°C
Lo: 75°F 24°C
Sunrise 06:40 AM
Sunset 07:09 PM
Wind SW 12 mph19 km/h
Dew Point 64°F18°C
uv Index 9
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 35%
Tue, 15th
Mascoutah IL Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 97°F 36°C
Lo: 75°F 24°C
Sunrise 06:41 AM
Sunset 07:07 PM
Wind WSW 9 mph14 km/h
Dew Point 64°F18°C
uv Index 8
Barometric Pressure 30.03 in1017 mb
POP 3% *
Humidity 40%
Wed, 16th
Mascoutah IL Weather - Wednesday, Sep 16, 2026 - Partly Cloudy
Hi: 90°F 32°C
Lo: 73°F 23°C
Sunrise 06:42 AM
Sunset 07:06 PM
Wind S 3 mph5 km/h
Dew Point 68°F20°C
uv Index 8
Barometric Pressure 30.18 in1022 mb
POP 7% *
Humidity 56%
Thu, 17th
Mascoutah IL Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 101°F 38°C
Lo: 67°F 19°C
Sunrise 06:43 AM
Sunset 07:04 PM
Wind WSW 11 mph18 km/h
Dew Point 65°F18°C
uv Index 9
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 38%
Fri, 18th
Mascoutah IL Weather - Friday, Sep 18, 2026 - Patchy Rain Nearby
Hi: 75°F 24°C
Lo: 56°F 14°C
Sunrise 06:44 AM
Sunset 07:03 PM
Wind NNE 11 mph18 km/h
Dew Point 44°F7°C
uv Index 4
Barometric Pressure 30.21 in1023 mb
POP 10% *
Humidity 45%
Sat, 19th
Mascoutah IL Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 73°F 23°C
Lo: 48°F 9°C
Sunrise 06:44 AM
Sunset 07:01 PM
Wind NNE 8 mph12 km/h
Dew Point 33°F1°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 1% *
Humidity 30%
Sun, 20th
Mascoutah IL Weather - Sunday, Sep 20, 2026 - Partly Cloudy
Hi: 76°F 24°C
Lo: 50°F 10°C
Sunrise 06:45 AM
Sunset 06:59 PM
Wind SE 9 mph14 km/h
Dew Point 40°F4°C
uv Index 6
Barometric Pressure 30.18 in1022 mb
POP 2% *
Humidity 35%
Mon, 21st
Mascoutah IL Weather - Monday, Sep 21, 2026 - Overcast
Hi: 87°F 31°C
Lo: 55°F 13°C
Sunrise 06:46 AM
Sunset 06:58 PM
Wind S 15 mph23 km/h
Dew Point 50°F10°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 10% *
Humidity 45%
Tue, 22nd
Mascoutah IL Weather - Tuesday, Sep 22, 2026 - Patchy Rain Nearby
Hi: 72°F 22°C
Lo: 61°F 16°C
Sunrise 06:47 AM
Sunset 06:56 PM
Wind W 9 mph14 km/h
Dew Point 60°F16°C
uv Index 4
Barometric Pressure 30.06 in1018 mb
POP 66% *
Humidity 84%
Wed, 23rd
Mascoutah IL Weather - Wednesday, Sep 23, 2026 - Sunny
Hi: 72°F 22°C
Lo: 52°F 11°C
Sunrise 06:48 AM
Sunset 06:55 PM
Wind NNW 12 mph20 km/h
Dew Point 45°F7°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 2% *
Humidity 48%
* POP = Probability of Precipitation. Data for 12:00 PM.