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Barnett IL Weather - Clear - 80°F
Clear
80°F
Updated 9:12 am
Feels Like 86°F
Humidity 65%
Wind VRB 5 mph
Barometer  30.09 in
Dew Point 68°F
Barnett IL Weather - Clear - 27°C
Clear
27°C
Updated 9:12 am
Feels Like 30°C
Humidity 65%
Wind VRB 8 km/h
Barometer  101.9 kPa
Dew Point 20°C
Barnett, IL Weather and Current Conditionsbarnett il weather forecast

Barnett, IL Weather Forecast

Barnett Illinois WeatherBarnett, Illinois Weather Weather Forecast
14 Day API Barnett, IL Weather Forecast. Note: Our 7 day Barnett, 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.
Barnett, IL Weather Forecast Dated: 912 AM Wed Sep 09 2026
Expect a very warm period with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.

Wednesday, September 9, 2026

Mid-Morning
Barnett Weather - 2026-09-09 - Morning - Sunny
85°F 30°C
Sunny
Mid-Afternoon
Barnett Weather - 2026-09-09 - Afternoon - Scattered Showers
87°F 31°C
Scattered Showers
Early-Evening
Barnett Weather - 2026-09-09 - Evening - Heavy Rain Showers
73°F 23°C
Heavy Rain Showers
Warm and summery around 87°F 31°C (feels like 92°F 33°C), periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds turning from the SSW to the SE at 10 mph 16 km/h.

Thursday, September 10, 2026

Mid-Morning
Barnett Weather - 2026-09-10 - Morning - Light Showers
69°F 21°C
Light Showers
Mid-Afternoon
Barnett Weather - 2026-09-10 - Afternoon - Scattered Showers
73°F 23°C
Scattered Showers
Early-Evening
Barnett Weather - 2026-09-10 - Evening - Scattered Showers
72°F 23°C
Scattered Showers
Comfortable with temperatures reaching 73°F 23°C, scattered downpours possible, with lower humidity and steady pressure.

Friday, September 11, 2026

Mid-Morning
Barnett Weather - 2026-09-11 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Barnett Weather - 2026-09-11 - Afternoon - Overcast
78°F 25°C
Overcast
Early-Evening
Barnett Weather - 2026-09-11 - Evening - Overcast
75°F 24°C
Overcast
Enjoyable around 78°F 25°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling.

Saturday, September 12, 2026

Mid-Morning
Barnett Weather - 2026-09-12 - Morning - Sunny
72°F 22°C
Sunny
Mid-Afternoon
Barnett Weather - 2026-09-12 - Afternoon - Scattered Showers
85°F 29°C
Scattered Showers
Early-Evening
Barnett Weather - 2026-09-12 - Evening - Light Showers
79°F 26°C
Light Showers
Warm temperatures up to 85°F 29°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.

Sunday, September 13, 2026

Mid-Morning
Barnett Weather - 2026-09-13 - Morning - Overcast
74°F 23°C
Overcast
Mid-Afternoon
Barnett Weather - 2026-09-13 - Afternoon - Partly Cloudy
87°F 31°C
Partly Cloudy
Early-Evening
Barnett Weather - 2026-09-13 - Evening - Overcast
83°F 28°C
Overcast
Very warm with a high of 87°F 31°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure.

Monday, September 14, 2026

Mid-Morning
Barnett Weather - 2026-09-14 - Morning - Overcast
80°F 26°C
Overcast
Mid-Afternoon
Barnett Weather - 2026-09-14 - Afternoon - Sunny
94°F 34°C
Sunny
Early-Evening
Barnett Weather - 2026-09-14 - Evening - Sunny
89°F 32°C
Sunny
Very hot with a high of 94°F 34°C, feeling closer to 97°F 36°C in the humidity, cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds blowing from the SW at 11 mph 17 km/h.

Tuesday, September 15, 2026

Mid-Morning
Barnett Weather - 2026-09-15 - Morning - Light Showers
76°F 24°C
Light Showers
Mid-Afternoon
Barnett Weather - 2026-09-15 - Afternoon - Cloudy
80°F 27°C
Cloudy
Early-Evening
Barnett Weather - 2026-09-15 - Evening - Partly Cloudy
73°F 23°C
Partly Cloudy
Warm and summery around 80°F 27°C (feels like 83°F 28°C), early showers breaking for a drier afternoon, with lower humidity and steady pressure. Winds moving from the W to the NNE at 10 mph 17 km/h.

Wednesday, September 16, 2026

Mid-Morning
Barnett Weather - 2026-09-16 - Morning - Scattered Showers
68°F 20°C
Scattered Showers
Mid-Afternoon
Barnett Weather - 2026-09-16 - Afternoon - Sunny
81°F 27°C
Sunny
Early-Evening
Barnett Weather - 2026-09-16 - Evening - Scattered Showers
75°F 24°C
Scattered Showers
Quite warm around 81°F 27°C, scattered downpours possible, with steady humidity and steady pressure.

Thursday, September 17, 2026

Mid-Morning
Barnett Weather - 2026-09-17 - Morning - Overcast
69°F 20°C
Overcast
Mid-Afternoon
Barnett Weather - 2026-09-17 - Afternoon - Light Showers
66°F 19°C
Light Showers
Early-Evening
Barnett Weather - 2026-09-17 - Evening - Overcast
67°F 19°C
Overcast
Refreshing around 66°F 19°C, dry early, with showers developing in the afternoon, with increasing humidity and steady pressure.

Friday, September 18, 2026

Mid-Morning
Barnett Weather - 2026-09-18 - Morning - Light Fog
69°F 20°C
Light Fog
Mid-Afternoon
Barnett Weather - 2026-09-18 - Afternoon - Scattered Showers
82°F 28°C
Scattered Showers
Early-Evening
Barnett Weather - 2026-09-18 - Evening - Sunny
79°F 26°C
Sunny
Warm and summery around 82°F 28°C (feels like 85°F 30°C), periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling.

Saturday, September 19, 2026

Mid-Morning
Barnett Weather - 2026-09-19 - Morning - Sunny
81°F 27°C
Sunny
Mid-Afternoon
Barnett Weather - 2026-09-19 - Afternoon - Partly Cloudy
97°F 36°C
Partly Cloudy
Early-Evening
Barnett Weather - 2026-09-19 - Evening - Partly Cloudy
87°F 31°C
Partly Cloudy
Hot and sweltering around 97°F 36°C (heat index 101°F 38°C), cloudy through the afternoon, turning sunny this evening, with lower humidity and barometric pressure falling. Winds swinging from the SW to the NW at 9 mph 14 km/h.

Sunday, September 20, 2026

Mid-Morning
Barnett Weather - 2026-09-20 - Morning - Sunny
76°F 24°C
Sunny
Mid-Afternoon
Barnett Weather - 2026-09-20 - Afternoon - Partly Cloudy
89°F 32°C
Partly Cloudy
Early-Evening
Barnett Weather - 2026-09-20 - Evening - Sunny
86°F 30°C
Sunny
Balmy with temperatures reaching 89°F 32°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure.

Monday, September 21, 2026

Mid-Morning
Barnett Weather - 2026-09-21 - Morning - Nearby Thunderstorms
73°F 23°C
Nearby Thunderstorms
Mid-Afternoon
Barnett Weather - 2026-09-21 - Afternoon - Overcast
79°F 26°C
Overcast
Early-Evening
Barnett Weather - 2026-09-21 - Evening - Scattered Showers
77°F 25°C
Scattered Showers
Enjoyable around 79°F 26°C, periods of heavy thunderstorms, with steady humidity and steady pressure.

Tuesday, September 22, 2026

Mid-Morning
Barnett Weather - 2026-09-22 - Morning - Light Fog
69°F 21°C
Light Fog
Mid-Afternoon
Barnett Weather - 2026-09-22 - Afternoon - Overcast
76°F 25°C
Overcast
Early-Evening
Barnett Weather - 2026-09-22 - Evening - Scattered Showers
75°F 24°C
Scattered Showers
Mild temperatures up to 76°F 25°C, scattered downpours possible, with lower humidity and steady pressure. Winds shifting from the NNW to the WNW at 3 mph 5 km/h.

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Weather by the Numbers

Wed, 9th
Barnett IL Weather - Wednesday, Sep 9, 2026 - Partly Cloudy
Hi: 91°F 33°C
Lo: 72°F 22°C
Sunrise 06:34 AM
Sunset 07:17 PM
Wind NW 5 mph9 km/h
Dew Point 69°F21°C
uv Index 7
Barometric Pressure 30.03 in1017 mb
POP 6% *
Humidity 56%
Thu, 10th
Barnett IL Weather - Thursday, Sep 10, 2026 - Light Rain Shower
Hi: 74°F 23°C
Lo: 69°F 20°C
Sunrise 06:35 AM
Sunset 07:15 PM
Wind E 3 mph4 km/h
Dew Point 68°F20°C
uv Index 2
Barometric Pressure 30 in1016 mb
POP 78% *
Humidity 93%
Fri, 11th
Barnett IL Weather - Friday, Sep 11, 2026 - Overcast
Hi: 79°F 26°C
Lo: 65°F 18°C
Sunrise 06:36 AM
Sunset 07:13 PM
Wind SE 7 mph11 km/h
Dew Point 65°F18°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 18% *
Humidity 71%
Sat, 12th
Barnett IL Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 85°F 29°C
Lo: 68°F 20°C
Sunrise 06:37 AM
Sunset 07:12 PM
Wind S 6 mph10 km/h
Dew Point 66°F19°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 3% *
Humidity 59%
Sun, 13th
Barnett IL Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 87°F 31°C
Lo: 70°F 21°C
Sunrise 06:38 AM
Sunset 07:10 PM
Wind SE 5 mph9 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 30 in1016 mb
POP 4% *
Humidity 58%
Mon, 14th
Barnett IL Weather - Monday, Sep 14, 2026 - Partly Cloudy
Hi: 95°F 35°C
Lo: 76°F 24°C
Sunrise 06:39 AM
Sunset 07:09 PM
Wind SSW 12 mph20 km/h
Dew Point 67°F19°C
uv Index 8
Barometric Pressure 29.94 in1014 mb
POP 3% *
Humidity 50%
Tue, 15th
Barnett IL Weather - Tuesday, Sep 15, 2026 - Cloudy
Hi: 82°F 28°C
Lo: 68°F 20°C
Sunrise 06:40 AM
Sunset 07:07 PM
Wind SE 9 mph14 km/h
Dew Point 68°F20°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 14% *
Humidity 72%
Wed, 16th
Barnett IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 81°F 27°C
Lo: 65°F 18°C
Sunrise 06:41 AM
Sunset 07:05 PM
Wind ENE 3 mph5 km/h
Dew Point 60°F15°C
uv Index 6
Barometric Pressure 30.27 in1025 mb
POP 3% *
Humidity 56%
Thu, 17th
Barnett IL Weather - Thursday, Sep 17, 2026 - Patchy Rain Nearby
Hi: 70°F 21°C
Lo: 64°F 18°C
Sunrise 06:42 AM
Sunset 07:04 PM
Wind NNE 8 mph13 km/h
Dew Point 60°F16°C
uv Index 4
Barometric Pressure 30.27 in1025 mb
POP 55% *
Humidity 84%
Fri, 18th
Barnett IL Weather - Friday, Sep 18, 2026 - Patchy Rain Nearby
Hi: 84°F 29°C
Lo: 64°F 18°C
Sunrise 06:43 AM
Sunset 07:02 PM
Wind SSE 4 mph7 km/h
Dew Point 65°F18°C
uv Index 6
Barometric Pressure 30.15 in1021 mb
POP 11% *
Humidity 66%
Sat, 19th
Barnett IL Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 97°F 36°C
Lo: 74°F 23°C
Sunrise 06:43 AM
Sunset 07:00 PM
Wind WSW 18 mph29 km/h
Dew Point 64°F18°C
uv Index 7
Barometric Pressure 29.8 in1009 mb
POP 6% *
Humidity 41%
Sun, 20th
Barnett IL Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 90°F 32°C
Lo: 71°F 22°C
Sunrise 06:44 AM
Sunset 06:59 PM
Wind NW 6 mph9 km/h
Dew Point 59°F15°C
uv Index 7
Barometric Pressure 29.83 in1010 mb
POP 3% *
Humidity 43%
Mon, 21st
Barnett IL Weather - Monday, Sep 21, 2026 - Light Rain Shower
Hi: 81°F 27°C
Lo: 73°F 23°C
Sunrise 06:45 AM
Sunset 06:57 PM
Wind ENE 6 mph10 km/h
Dew Point 68°F20°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 37% *
Humidity 72%
Tue, 22nd
Barnett IL Weather - Tuesday, Sep 22, 2026 - Patchy Rain Nearby
Hi: 78°F 25°C
Lo: 68°F 20°C
Sunrise 06:46 AM
Sunset 06:55 PM
Wind NW 6 mph10 km/h
Dew Point 65°F18°C
uv Index 5
Barometric Pressure 29.91 in1013 mb
POP 21% *
Humidity 77%
* POP = Probability of Precipitation. Data for 12:00 PM.