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Herrin IL Weather - Clear - 77°F
Clear
77°F
Updated 7:08 am
Feels Like 82°F
Humidity 88%
Wind N 0 mph
Barometer  29.99 in
Dew Point 73°F
Herrin IL Weather - Clear - 25°C
Clear
25°C
Updated 7:08 am
Feels Like 28°C
Humidity 88%
Wind N 0 km/h
Barometer  101.6 kPa
Dew Point 23°C
Herrin, IL Weather and Current Conditionsherrin il weather forecast

Herrin, IL Weather Forecast

Herrin Illinois WeatherHerrin, Illinois Weather Weather Forecast
14 Day API Herrin, IL Weather Forecast. Note: Our 7 day Herrin, 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.
Herrin, IL Weather Forecast Dated: 708 AM Fri Sep 04 2026
Expect a hot stretch with a mix of sun and clouds and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.

Friday, September 4, 2026

Mid-Morning
Herrin Weather - 2026-09-04 - Morning - Sunny
90°F 32°C
Sunny
Mid-Afternoon
Herrin Weather - 2026-09-04 - Afternoon - Sunny
103°F 39°C
Sunny
Early-Evening
Herrin Weather - 2026-09-04 - Evening - Partly Cloudy
97°F 36°C
Partly Cloudy
Scorching hot near 103°F 39°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling.

Saturday, September 5, 2026

Mid-Morning
Herrin Weather - 2026-09-05 - Morning - Scattered Showers
88°F 31°C
Scattered Showers
Mid-Afternoon
Herrin Weather - 2026-09-05 - Afternoon - Overcast
106°F 41°C
Overcast
Early-Evening
Herrin Weather - 2026-09-05 - Evening - Scattered Showers
89°F 32°C
Scattered Showers
Sweltering heat reaching 106°F 41°C, scattered downpours possible, with steady humidity and steady pressure. Winds turning from the WNW to the SSE at 6 mph 10 km/h.

Sunday, September 6, 2026

Mid-Morning
Herrin Weather - 2026-09-06 - Morning - Sunny
79°F 26°C
Sunny
Mid-Afternoon
Herrin Weather - 2026-09-06 - Afternoon - Sunny
97°F 36°C
Sunny
Early-Evening
Herrin Weather - 2026-09-06 - Evening - Sunny
88°F 31°C
Sunny
Sizzling hot with 97°F 36°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the ENE to the NE at 12 mph 20 km/h.

Monday, September 7, 2026

Mid-Morning
Herrin Weather - 2026-09-07 - Morning - Partly Cloudy
74°F 23°C
Partly Cloudy
Mid-Afternoon
Herrin Weather - 2026-09-07 - Afternoon - Sunny
96°F 35°C
Sunny
Early-Evening
Herrin Weather - 2026-09-07 - Evening - Sunny
86°F 30°C
Sunny
Hot temperatures near 96°F 35°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the ENE to the E at 8 mph 13 km/h.

Tuesday, September 8, 2026

Mid-Morning
Herrin Weather - 2026-09-08 - Morning - Sunny
80°F 27°C
Sunny
Mid-Afternoon
Herrin Weather - 2026-09-08 - Afternoon - Overcast
103°F 40°C
Overcast
Early-Evening
Herrin Weather - 2026-09-08 - Evening - Partly Cloudy
96°F 35°C
Partly Cloudy
Scorching hot near 103°F 40°C, partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds swinging from the S to the SSE at 11 mph 18 km/h. Gusts up to 22 mph 35 km/h.

Wednesday, September 9, 2026

Mid-Morning
Herrin Weather - 2026-09-09 - Morning - Partly Cloudy
88°F 31°C
Partly Cloudy
Mid-Afternoon
Herrin Weather - 2026-09-09 - Afternoon - Sunny
105°F 41°C
Sunny
Early-Evening
Herrin Weather - 2026-09-09 - Evening - Sunny
96°F 36°C
Sunny
Sweltering heat reaching 105°F 41°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds blowing from the WSW at 9 mph 15 km/h.

Thursday, September 10, 2026

Mid-Morning
Herrin Weather - 2026-09-10 - Morning - Partly Cloudy
86°F 30°C
Partly Cloudy
Mid-Afternoon
Herrin Weather - 2026-09-10 - Afternoon - Sunny
104°F 40°C
Sunny
Early-Evening
Herrin Weather - 2026-09-10 - Evening - Sunny
97°F 36°C
Sunny
Dangerously hot temperatures around 104°F 40°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds turning from the WSW to the S at 8 mph 12 km/h.

Friday, September 11, 2026

Mid-Morning
Herrin Weather - 2026-09-11 - Morning - Sunny
90°F 32°C
Sunny
Mid-Afternoon
Herrin Weather - 2026-09-11 - Afternoon - Cloudy
101°F 38°C
Cloudy
Early-Evening
Herrin Weather - 2026-09-11 - Evening - Overcast
94°F 35°C
Overcast
Dangerously hot with a high of 101°F 38°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds switching from the WSW to the S at 9 mph 15 km/h.

Saturday, September 12, 2026

Mid-Morning
Herrin Weather - 2026-09-12 - Morning - Sunny
91°F 33°C
Sunny
Mid-Afternoon
Herrin Weather - 2026-09-12 - Afternoon - Sunny
100°F 38°C
Sunny
Early-Evening
Herrin Weather - 2026-09-12 - Evening - Overcast
94°F 34°C
Overcast
Scorching hot near 100°F 38°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds moving from the SSW to the S at 11 mph 17 km/h. Gusts up to 21 mph 33 km/h.

Sunday, September 13, 2026

Mid-Morning
Herrin Weather - 2026-09-13 - Morning - Sunny
88°F 31°C
Sunny
Mid-Afternoon
Herrin Weather - 2026-09-13 - Afternoon - Sunny
102°F 39°C
Sunny
Early-Evening
Herrin Weather - 2026-09-13 - Evening - Overcast
96°F 35°C
Overcast
Sweltering heat reaching 102°F 39°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds swinging from the SSW to the SW at 14 mph 23 km/h. Gusts up to 28 mph 45 km/h.

Monday, September 14, 2026

Mid-Morning
Herrin Weather - 2026-09-14 - Morning - Light Showers
71°F 22°C
Light Showers
Mid-Afternoon
Herrin Weather - 2026-09-14 - Afternoon - Scattered Showers
82°F 28°C
Scattered Showers
Early-Evening
Herrin Weather - 2026-09-14 - Evening - Light Showers
78°F 26°C
Light Showers
Quite warm reaching 82°F 28°C, feeling like 85°F 29°C during peak afternoon, scattered downpours possible, with lower humidity and steady pressure. Winds shifting from the WSW to the SSW at 4 mph 7 km/h.

Tuesday, September 15, 2026

Mid-Morning
Herrin Weather - 2026-09-15 - Morning - Cloudy
73°F 23°C
Cloudy
Mid-Afternoon
Herrin Weather - 2026-09-15 - Afternoon - Scattered Showers
93°F 34°C
Scattered Showers
Early-Evening
Herrin Weather - 2026-09-15 - Evening - Overcast
88°F 31°C
Overcast
Very hot with a high of 93°F 34°C, feeling closer to 97°F 36°C in the humidity, locally heavy downpours at times, with lower humidity and steady pressure. Winds turning from the S to the SSE at 7 mph 11 km/h.

Wednesday, September 16, 2026

Mid-Morning
Herrin Weather - 2026-09-16 - Morning - Sunny
88°F 31°C
Sunny
Mid-Afternoon
Herrin Weather - 2026-09-16 - Afternoon - Sunny
101°F 38°C
Sunny
Early-Evening
Herrin Weather - 2026-09-16 - Evening - Partly Cloudy
94°F 35°C
Partly Cloudy
Scorching hot near 101°F 38°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds switching from the SSW to the S at 10 mph 16 km/h.

Thursday, September 17, 2026

Mid-Morning
Herrin Weather - 2026-09-17 - Morning - Partly Cloudy
87°F 31°C
Partly Cloudy
Mid-Afternoon
Herrin Weather - 2026-09-17 - Afternoon - Cloudy
98°F 37°C
Cloudy
Early-Evening
Herrin Weather - 2026-09-17 - Evening - Scattered Showers
87°F 30°C
Scattered Showers
Hot and sweltering around 98°F 37°C (heat index 101°F 38°C), scattered downpours possible, with steady humidity and steady pressure. Winds moving from the SSW to the W at 7 mph 12 km/h.

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Weather by the Numbers

Fri, 4th
Herrin IL Weather - Friday, Sep 4, 2026 - Sunny
Hi: 103°F 40°C
Lo: 79°F 26°C
Sunrise 06:29 AM
Sunset 07:21 PM
Wind WSW 6 mph10 km/h
Dew Point 62°F17°C
uv Index 8
Barometric Pressure 29.97 in1015 mb
POP 0% *
Humidity 30%
Sat, 5th
Herrin IL Weather - Saturday, Sep 5, 2026 - Partly Cloudy
Hi: 106°F 41°C
Lo: 82°F 28°C
Sunrise 06:29 AM
Sunset 07:19 PM
Wind WNW 8 mph13 km/h
Dew Point 60°F16°C
uv Index 8
Barometric Pressure 29.88 in1012 mb
POP 4% *
Humidity 26%
Sun, 6th
Herrin IL Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 97°F 36°C
Lo: 72°F 22°C
Sunrise 06:30 AM
Sunset 07:18 PM
Wind NE 11 mph17 km/h
Dew Point 65°F18°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 1% *
Humidity 41%
Mon, 7th
Herrin IL Weather - Monday, Sep 7, 2026 - Sunny
Hi: 96°F 36°C
Lo: 65°F 18°C
Sunrise 06:31 AM
Sunset 07:16 PM
Wind ENE 8 mph13 km/h
Dew Point 52°F11°C
uv Index 8
Barometric Pressure 30.03 in1017 mb
POP 1% *
Humidity 28%
Tue, 8th
Herrin IL Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 104°F 40°C
Lo: 70°F 21°C
Sunrise 06:32 AM
Sunset 07:15 PM
Wind S 5 mph9 km/h
Dew Point 55°F13°C
uv Index 8
Barometric Pressure 30.06 in1018 mb
POP 0% *
Humidity 28%
Wed, 9th
Herrin IL Weather - Wednesday, Sep 9, 2026 - Sunny
Hi: 106°F 41°C
Lo: 80°F 26°C
Sunrise 06:33 AM
Sunset 07:13 PM
Wind WSW 11 mph18 km/h
Dew Point 62°F17°C
uv Index 9
Barometric Pressure 30.06 in1018 mb
POP 0% *
Humidity 30%
Thu, 10th
Herrin IL Weather - Thursday, Sep 10, 2026 - Patchy Rain Nearby
Hi: 104°F 40°C
Lo: 79°F 26°C
Sunrise 06:34 AM
Sunset 07:12 PM
Wind WSW 9 mph14 km/h
Dew Point 63°F17°C
uv Index 8
Barometric Pressure 30.03 in1017 mb
POP 2% *
Humidity 33%
Fri, 11th
Herrin IL Weather - Friday, Sep 11, 2026 - Sunny
Hi: 102°F 39°C
Lo: 81°F 27°C
Sunrise 06:34 AM
Sunset 07:10 PM
Wind SW 9 mph15 km/h
Dew Point 61°F16°C
uv Index 9
Barometric Pressure 29.94 in1014 mb
POP 3% *
Humidity 28%
Sat, 12th
Herrin IL Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 101°F 38°C
Lo: 82°F 28°C
Sunrise 06:35 AM
Sunset 07:09 PM
Wind SW 13 mph21 km/h
Dew Point 58°F15°C
uv Index 9
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 26%
Sun, 13th
Herrin IL Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 102°F 39°C
Lo: 80°F 27°C
Sunrise 06:36 AM
Sunset 07:07 PM
Wind SSW 17 mph27 km/h
Dew Point 59°F15°C
uv Index 9
Barometric Pressure 29.91 in1013 mb
POP 0% *
Humidity 28%
Mon, 14th
Herrin IL Weather - Monday, Sep 14, 2026 - Light Rain Shower
Hi: 83°F 28°C
Lo: 71°F 22°C
Sunrise 06:37 AM
Sunset 07:05 PM
Wind SW 9 mph14 km/h
Dew Point 68°F20°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 37% *
Humidity 79%
Tue, 15th
Herrin IL Weather - Tuesday, Sep 15, 2026 - Light Rain Shower
Hi: 94°F 34°C
Lo: 72°F 22°C
Sunrise 06:38 AM
Sunset 07:04 PM
Wind SSW 10 mph16 km/h
Dew Point 66°F19°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 23% *
Humidity 57%
Wed, 16th
Herrin IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 101°F 39°C
Lo: 80°F 26°C
Sunrise 06:39 AM
Sunset 07:02 PM
Wind SSW 13 mph21 km/h
Dew Point 62°F17°C
uv Index 9
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 32%
Thu, 17th
Herrin IL Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 100°F 38°C
Lo: 75°F 24°C
Sunrise 06:40 AM
Sunset 07:01 PM
Wind SW 9 mph14 km/h
Dew Point 63°F17°C
uv Index 9
Barometric Pressure 30.09 in1019 mb
POP 3% *
Humidity 34%
* POP = Probability of Precipitation. Data for 12:00 PM.