Mattoon, IL 14 Day Weather - 61938 WeatherWorld.com

Feedback E-mail the Weather

Quick Weather Clicks

Mattoon, IL Weather - 14-Day Weather Forecast

Current Conditions

Settings
Mattoon IL Weather - Clear - 81°F
Clear
81°F
Updated 5:20 am
Feels Like 79°F
Humidity 67%
Wind SW 6 mph
Barometer  29.92 in
Dew Point 69°F
Mattoon IL Weather - Clear - 27°C
Clear
27°C
Updated 5:20 am
Feels Like 26°C
Humidity 67%
Wind SW 10 km/h
Barometer  101.3 kPa
Dew Point 21°C
Mattoon, IL Weather and Current Conditionsmattoon il weather forecast

Mattoon, IL Weather Forecast

Mattoon Illinois WeatherMattoon, Illinois Weather Weather Forecast
14 day API Mattoon, IL weather forecast. Note. Our 7-day weather forecast for Mattoon, 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.
Mattoon, IL Weather Forecast Dated: 520 AM Sat Sep 05 2026
Expect a hot stretch with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.

Saturday, September 5, 2026

Mid-Morning
Mattoon Weather - 2026-09-05 - Morning - Sunny
88°F 31°C
Sunny
Mid-Afternoon
Mattoon Weather - 2026-09-05 - Afternoon - Nearby Thunderstorms
91°F 33°C
Nearby Thunderstorms
Early-Evening
Mattoon Weather - 2026-09-05 - Evening - Sunny
84°F 29°C
Sunny
Sizzling hot near 91°F 33°C with a heat index reaching 96°F 36°C, periods of heavy thunderstorms, with increasing humidity and steady pressure. Winds turning from the WNW to the NE at 9 mph 14 km/h.

Sunday, September 6, 2026

Mid-Morning
Mattoon Weather - 2026-09-06 - Morning - Sunny
71°F 21°C
Sunny
Mid-Afternoon
Mattoon Weather - 2026-09-06 - Afternoon - Sunny
82°F 28°C
Sunny
Early-Evening
Mattoon Weather - 2026-09-06 - Evening - Sunny
72°F 22°C
Sunny
Balmy with temperatures reaching 82°F 28°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds blowing from the NE at 12 mph 19 km/h. Gusts up to 22 mph 35 km/h.

Monday, September 7, 2026

Mid-Morning
Mattoon Weather - 2026-09-07 - Morning - Sunny
65°F 19°C
Sunny
Mid-Afternoon
Mattoon Weather - 2026-09-07 - Afternoon - Sunny
81°F 27°C
Sunny
Early-Evening
Mattoon Weather - 2026-09-07 - Evening - Sunny
73°F 23°C
Sunny
Quite warm around 81°F 27°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds moving from the ENE to the NE at 9 mph 13 km/h.

Tuesday, September 8, 2026

Mid-Morning
Mattoon Weather - 2026-09-08 - Morning - Sunny
72°F 22°C
Sunny
Mid-Afternoon
Mattoon Weather - 2026-09-08 - Afternoon - Sunny
89°F 32°C
Sunny
Early-Evening
Mattoon Weather - 2026-09-08 - Evening - Partly Cloudy
86°F 30°C
Partly Cloudy
Warm temperatures up to 89°F 32°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds swinging from the S to the SSE at 6 mph 10 km/h.

Wednesday, September 9, 2026

Mid-Morning
Mattoon Weather - 2026-09-09 - Morning - Overcast
80°F 27°C
Overcast
Mid-Afternoon
Mattoon Weather - 2026-09-09 - Afternoon - Sunny
95°F 35°C
Sunny
Early-Evening
Mattoon Weather - 2026-09-09 - Evening - Partly Cloudy
84°F 29°C
Partly Cloudy
Very hot with a high of 95°F 35°C, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds shifting from the SW to the N at 9 mph 15 km/h.

Thursday, September 10, 2026

Mid-Morning
Mattoon Weather - 2026-09-10 - Morning - Cloudy
75°F 24°C
Cloudy
Mid-Afternoon
Mattoon Weather - 2026-09-10 - Afternoon - Overcast
83°F 28°C
Overcast
Early-Evening
Mattoon Weather - 2026-09-10 - Evening - Overcast
73°F 23°C
Overcast
Warm and summery near 83°F 28°C, overcast through the afternoon, turning cloudy this evening, with increasing humidity and steady pressure. Winds turning from the WSW to the NE at 8 mph 13 km/h.

Friday, September 11, 2026

Mid-Morning
Mattoon Weather - 2026-09-11 - Morning - Scattered Showers
66°F 19°C
Scattered Showers
Mid-Afternoon
Mattoon Weather - 2026-09-11 - Afternoon - Scattered Showers
82°F 28°C
Scattered Showers
Early-Evening
Mattoon Weather - 2026-09-11 - Evening - Scattered Showers
74°F 24°C
Scattered Showers
Balmy with temperatures reaching 82°F 28°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling. Winds switching from the E to the NE at 11 mph 17 km/h.

Saturday, September 12, 2026

Mid-Morning
Mattoon Weather - 2026-09-12 - Morning - Cloudy
69°F 21°C
Cloudy
Mid-Afternoon
Mattoon Weather - 2026-09-12 - Afternoon - Sunny
82°F 28°C
Sunny
Early-Evening
Mattoon Weather - 2026-09-12 - Evening - Sunny
74°F 23°C
Sunny
Quite warm around 82°F 28°C, overcast in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds blowing from the E at 13 mph 22 km/h. Gusts up to 24 mph 38 km/h.

Sunday, September 13, 2026

Mid-Morning
Mattoon Weather - 2026-09-13 - Morning - Sunny
68°F 20°C
Sunny
Mid-Afternoon
Mattoon Weather - 2026-09-13 - Afternoon - Sunny
86°F 30°C
Sunny
Early-Evening
Mattoon Weather - 2026-09-13 - Evening - Sunny
79°F 26°C
Sunny
Warm temperatures up to 86°F 30°C, sunny throughout the day, with lower humidity and steady pressure. Winds swinging from the ESE to the E at 11 mph 17 km/h. Gusts up to 22 mph 34 km/h.

Monday, September 14, 2026

Mid-Morning
Mattoon Weather - 2026-09-14 - Morning - Sunny
78°F 26°C
Sunny
Mid-Afternoon
Mattoon Weather - 2026-09-14 - Afternoon - Sunny
96°F 36°C
Sunny
Early-Evening
Mattoon Weather - 2026-09-14 - Evening - Sunny
90°F 32°C
Sunny
Sizzling hot near 96°F 36°C with a heat index reaching 99°F 37°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds shifting from the SSE to the ESE at 8 mph 12 km/h.

Tuesday, September 15, 2026

Mid-Morning
Mattoon Weather - 2026-09-15 - Morning - Overcast
84°F 29°C
Overcast
Mid-Afternoon
Mattoon Weather - 2026-09-15 - Afternoon - Overcast
99°F 37°C
Overcast
Early-Evening
Mattoon Weather - 2026-09-15 - Evening - Sunny
90°F 33°C
Sunny
Very hot with temperatures reaching 99°F 37°C, overcast in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure.

Wednesday, September 16, 2026

Mid-Morning
Mattoon Weather - 2026-09-16 - Morning - Cloudy
79°F 26°C
Cloudy
Mid-Afternoon
Mattoon Weather - 2026-09-16 - Afternoon - Nearby Thunderstorms
96°F 36°C
Nearby Thunderstorms
Early-Evening
Mattoon Weather - 2026-09-16 - Evening - Sunny
88°F 32°C
Sunny
Very hot with a high of 96°F 36°C, feeling closer to 99°F 37°C in the humidity, heavy thunderstorms conditions at times, with lower humidity and barometric pressure falling.

Thursday, September 17, 2026

Mid-Morning
Mattoon Weather - 2026-09-17 - Morning - Scattered Showers
79°F 26°C
Scattered Showers
Mid-Afternoon
Mattoon Weather - 2026-09-17 - Afternoon - Cloudy
84°F 29°C
Cloudy
Early-Evening
Mattoon Weather - 2026-09-17 - Evening - Overcast
86°F 30°C
Overcast
Warm and summery around 84°F 29°C (feels like 87°F 31°C), periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling. Winds turning from the SSW to the S at 9 mph 14 km/h. Gusts up to 21 mph 33 km/h.

Friday, September 18, 2026

Mid-Morning
Mattoon Weather - 2026-09-18 - Morning - Cloudy
78°F 26°C
Cloudy
Mid-Afternoon
Mattoon Weather - 2026-09-18 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
Mattoon Weather - 2026-09-18 - Evening - Sunny
80°F 27°C
Sunny
Hot and sweltering around 91°F 33°C (heat index 94°F 34°C), partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds switching from the ESE to the ENE at 12 mph 19 km/h. Gusts up to 22 mph 36 km/h.

Trending Headlines

Mattoon, IL Weather Radar Map

Use the map search tool if you want to place a location marker on the radar map...

Mattoon, IL 7 Day Weather

National Two Day Weather Forecast


E-mail the Mattoon Weather Forecast

Voice your opinion or tell us about page issues...

Weather by the Numbers

Sat, 5th
Mattoon IL Weather - Saturday, Sep 5, 2026 - Thundery Outbreaks In Nearby
Hi: 99°F 37°C
Lo: 77°F 25°C
Sunrise 06:25 AM
Sunset 07:18 PM
Wind WNW 6 mph10 km/h
Dew Point 68°F20°C
uv Index 7
Barometric Pressure 29.88 in1012 mb
POP 8% *
Humidity 48%
Sun, 6th
Mattoon IL Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 82°F 28°C
Lo: 65°F 18°C
Sunrise 06:26 AM
Sunset 07:16 PM
Wind NE 12 mph19 km/h
Dew Point 58°F15°C
uv Index 7
Barometric Pressure 30.03 in1017 mb
POP 2% *
Humidity 50%
Mon, 7th
Mattoon IL Weather - Monday, Sep 7, 2026 - Sunny
Hi: 81°F 27°C
Lo: 60°F 15°C
Sunrise 06:27 AM
Sunset 07:15 PM
Wind E 10 mph16 km/h
Dew Point 54°F12°C
uv Index 7
Barometric Pressure 30.09 in1019 mb
POP 2% *
Humidity 46%
Tue, 8th
Mattoon IL Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 89°F 32°C
Lo: 65°F 18°C
Sunrise 06:28 AM
Sunset 07:13 PM
Wind S 7 mph12 km/h
Dew Point 64°F18°C
uv Index 7
Barometric Pressure 30.09 in1019 mb
POP 2% *
Humidity 51%
Wed, 9th
Mattoon IL Weather - Wednesday, Sep 9, 2026 - Sunny
Hi: 95°F 35°C
Lo: 75°F 24°C
Sunrise 06:29 AM
Sunset 07:11 PM
Wind WSW 15 mph24 km/h
Dew Point 60°F15°C
uv Index 8
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 32%
Thu, 10th
Mattoon IL Weather - Thursday, Sep 10, 2026 - Overcast
Hi: 84°F 29°C
Lo: 65°F 19°C
Sunrise 06:30 AM
Sunset 07:10 PM
Wind NNW 9 mph14 km/h
Dew Point 50°F10°C
uv Index 6
Barometric Pressure 30.06 in1018 mb
POP 9% *
Humidity 34%
Fri, 11th
Mattoon IL Weather - Friday, Sep 11, 2026 - Patchy Rain Nearby
Hi: 82°F 28°C
Lo: 60°F 16°C
Sunrise 06:30 AM
Sunset 07:08 PM
Wind SE 9 mph14 km/h
Dew Point 56°F13°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 17% *
Humidity 50%
Sat, 12th
Mattoon IL Weather - Saturday, Sep 12, 2026 - Overcast
Hi: 83°F 28°C
Lo: 64°F 18°C
Sunrise 06:31 AM
Sunset 07:06 PM
Wind E 12 mph19 km/h
Dew Point 62°F17°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 5% *
Humidity 58%
Sun, 13th
Mattoon IL Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 87°F 31°C
Lo: 61°F 16°C
Sunrise 06:32 AM
Sunset 07:05 PM
Wind ESE 12 mph19 km/h
Dew Point 54°F12°C
uv Index 7
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 42%
Mon, 14th
Mattoon IL Weather - Monday, Sep 14, 2026 - Sunny
Hi: 98°F 36°C
Lo: 69°F 21°C
Sunrise 06:33 AM
Sunset 07:03 PM
Wind SSW 8 mph12 km/h
Dew Point 60°F15°C
uv Index 8
Barometric Pressure 30.12 in1020 mb
POP 1% *
Humidity 36%
Tue, 15th
Mattoon IL Weather - Tuesday, Sep 15, 2026 - Overcast
Hi: 100°F 38°C
Lo: 77°F 25°C
Sunrise 06:34 AM
Sunset 07:01 PM
Wind E 4 mph7 km/h
Dew Point 62°F17°C
uv Index 7
Barometric Pressure 30.12 in1020 mb
POP 9% *
Humidity 36%
Wed, 16th
Mattoon IL Weather - Wednesday, Sep 16, 2026 - Thundery Outbreaks In Nearby
Hi: 97°F 36°C
Lo: 76°F 25°C
Sunrise 06:35 AM
Sunset 07:00 PM
Wind WNW 3 mph5 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 30.15 in1021 mb
POP 7% *
Humidity 49%
Thu, 17th
Mattoon IL Weather - Thursday, Sep 17, 2026 - Overcast
Hi: 87°F 31°C
Lo: 75°F 24°C
Sunrise 06:36 AM
Sunset 06:58 PM
Wind SSW 6 mph10 km/h
Dew Point 67°F19°C
uv Index 6
Barometric Pressure 30.09 in1019 mb
POP 14% *
Humidity 65%
Fri, 18th
Mattoon IL Weather - Friday, Sep 18, 2026 - Partly Cloudy
Hi: 91°F 33°C
Lo: 72°F 22°C
Sunrise 06:37 AM
Sunset 06:57 PM
Wind NE 8 mph13 km/h
Dew Point 64°F18°C
uv Index 8
Barometric Pressure 29.97 in1015 mb
POP 2% *
Humidity 47%
* POP = Probability of Precipitation. Data for 12:00 PM.