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Herald IL Weather - Clear - 99°F
Clear
99°F
Updated 4:21 pm
Feels Like 107°F
Humidity 40%
Wind W 8 mph
Barometer  29.94 in
Dew Point 71°F
Herald IL Weather - Clear - 37°C
Clear
37°C
Updated 4:21 pm
Feels Like 42°C
Humidity 40%
Wind W 13 km/h
Barometer  101.4 kPa
Dew Point 22°C
Herald, IL Weather and Current Conditionsherald il weather forecast

Herald, IL Weather Forecast

Herald Illinois WeatherHerald, Illinois Weather Weather Forecast
14 day API weather forecast for Herald, Illinois. Note: The 7-day weather forecast for Herald, IL is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Herald, IL Weather Forecast Dated: 421 PM Fri Sep 04 2026
Expect a hot stretch with plenty of sunshine and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.

Friday, September 4, 2026

Mid-Morning
Herald Weather - 2026-09-04 - Morning - Sunny
84°F 29°C
Sunny
Mid-Afternoon
Herald Weather - 2026-09-04 - Afternoon - Sunny
99°F 37°C
Sunny
Early-Evening
Herald Weather - 2026-09-04 - Evening - Sunny
90°F 33°C
Sunny
Sizzling hot near 99°F 37°C with a heat index reaching 110°F 43°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the S to the SSW at 7 mph 11 km/h.

Saturday, September 5, 2026

Mid-Morning
Herald Weather - 2026-09-05 - Morning - Sunny
80°F 27°C
Sunny
Mid-Afternoon
Herald Weather - 2026-09-05 - Afternoon - Sunny
98°F 37°C
Sunny
Early-Evening
Herald Weather - 2026-09-05 - Evening - Sunny
80°F 27°C
Sunny
Hot and sweltering around 98°F 37°C (heat index 104°F 40°C), sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds building from WSW at 6 mph 9 km/h to W at 15 mph 25 km/h. Gusts up to 25 mph 41 km/h.

Sunday, September 6, 2026

Mid-Morning
Herald Weather - 2026-09-06 - Morning - Sunny
78°F 25°C
Sunny
Mid-Afternoon
Herald Weather - 2026-09-06 - Afternoon - Sunny
87°F 30°C
Sunny
Early-Evening
Herald Weather - 2026-09-06 - Evening - Sunny
79°F 27°C
Sunny
Quite warm around 87°F 30°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the NE to the ENE at 10 mph 15 km/h. Gusts up to 21 mph 34 km/h.

Monday, September 7, 2026

Mid-Morning
Herald Weather - 2026-09-07 - Morning - Overcast
69°F 21°C
Overcast
Mid-Afternoon
Herald Weather - 2026-09-07 - Afternoon - Sunny
86°F 30°C
Sunny
Early-Evening
Herald Weather - 2026-09-07 - Evening - Sunny
79°F 26°C
Sunny
Warm temperatures up to 86°F 30°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds swinging from the ENE to the NE at 6 mph 10 km/h.

Tuesday, September 8, 2026

Mid-Morning
Herald Weather - 2026-09-08 - Morning - Sunny
78°F 25°C
Sunny
Mid-Afternoon
Herald Weather - 2026-09-08 - Afternoon - Sunny
93°F 34°C
Sunny
Early-Evening
Herald Weather - 2026-09-08 - Evening - Partly Cloudy
88°F 31°C
Partly Cloudy
Hot and sweltering around 93°F 34°C (heat index 96°F 35°C), sunny throughout the day, with lower humidity and steady pressure. Winds blowing from the S at 10 mph 17 km/h. Gusts up to 20 mph 33 km/h.

Wednesday, September 9, 2026

Mid-Morning
Herald Weather - 2026-09-09 - Morning - Sunny
84°F 29°C
Sunny
Mid-Afternoon
Herald Weather - 2026-09-09 - Afternoon - Cloudy
94°F 34°C
Cloudy
Early-Evening
Herald Weather - 2026-09-09 - Evening - Cloudy
85°F 30°C
Cloudy
Very hot with temperatures reaching 94°F 34°C, partly cloudy in the morning, overcast in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds decreasing from SSW 15 mph 24 km/h to WNW 7 mph 10 km/h.

Thursday, September 10, 2026

Mid-Morning
Herald Weather - 2026-09-10 - Morning - Sunny
71°F 22°C
Sunny
Mid-Afternoon
Herald Weather - 2026-09-10 - Afternoon - Partly Cloudy
88°F 31°C
Partly Cloudy
Early-Evening
Herald Weather - 2026-09-10 - Evening - Overcast
79°F 26°C
Overcast
Balmy with temperatures reaching 88°F 31°C, cloudy throughout the day, with lower humidity and barometric pressure falling. Winds switching from the NNE to the NE at 9 mph 14 km/h.

Friday, September 11, 2026

Mid-Morning
Herald Weather - 2026-09-11 - Morning - Sunny
66°F 19°C
Sunny
Mid-Afternoon
Herald Weather - 2026-09-11 - Afternoon - Overcast
71°F 22°C
Overcast
Early-Evening
Herald Weather - 2026-09-11 - Evening - Cloudy
70°F 21°C
Cloudy
Enjoyable around 71°F 22°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds blowing from the NE at 4 mph 6 km/h.

Saturday, September 12, 2026

Mid-Morning
Herald Weather - 2026-09-12 - Morning - Partly Cloudy
70°F 21°C
Partly Cloudy
Mid-Afternoon
Herald Weather - 2026-09-12 - Afternoon - Overcast
88°F 31°C
Overcast
Early-Evening
Herald Weather - 2026-09-12 - Evening - Overcast
81°F 28°C
Overcast
Warm temperatures up to 88°F 31°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure.

Sunday, September 13, 2026

Mid-Morning
Herald Weather - 2026-09-13 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
Herald Weather - 2026-09-13 - Afternoon - Scattered Showers
100°F 38°C
Scattered Showers
Early-Evening
Herald Weather - 2026-09-13 - Evening - Sunny
93°F 33°C
Sunny
Sweltering heat reaching 100°F 38°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds swinging from the SW to the SSW at 10 mph 16 km/h.

Monday, September 14, 2026

Mid-Morning
Herald Weather - 2026-09-14 - Morning - Sunny
86°F 30°C
Sunny
Mid-Afternoon
Herald Weather - 2026-09-14 - Afternoon - Sunny
104°F 40°C
Sunny
Early-Evening
Herald Weather - 2026-09-14 - Evening - Sunny
95°F 35°C
Sunny
Dangerously hot temperatures around 104°F 40°C, sunny throughout the day, with lower humidity and steady pressure. Winds shifting from the SW to the SSW at 8 mph 13 km/h.

Tuesday, September 15, 2026

Mid-Morning
Herald Weather - 2026-09-15 - Morning - Sunny
89°F 32°C
Sunny
Mid-Afternoon
Herald Weather - 2026-09-15 - Afternoon - Sunny
105°F 40°C
Sunny
Early-Evening
Herald Weather - 2026-09-15 - Evening - Sunny
97°F 36°C
Sunny
Dangerously hot with a high of 105°F 40°C, sunny throughout the day, with lower humidity and steady pressure.

Wednesday, September 16, 2026

Mid-Morning
Herald Weather - 2026-09-16 - Morning - Sunny
90°F 32°C
Sunny
Mid-Afternoon
Herald Weather - 2026-09-16 - Afternoon - Sunny
106°F 41°C
Sunny
Early-Evening
Herald Weather - 2026-09-16 - Evening - Sunny
93°F 34°C
Sunny
Scorching hot near 106°F 41°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure.

Thursday, September 17, 2026

Mid-Morning
Herald Weather - 2026-09-17 - Morning - Sunny
87°F 31°C
Sunny
Mid-Afternoon
Herald Weather - 2026-09-17 - Afternoon - Sunny
105°F 41°C
Sunny
Early-Evening
Herald Weather - 2026-09-17 - Evening - Sunny
97°F 36°C
Sunny
Sweltering heat reaching 105°F 41°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure.

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Weather by the Numbers

Fri, 4th
Herald IL Weather - Friday, Sep 4, 2026 - Sunny
Hi: 99°F 37°C
Lo: 74°F 23°C
Sunrise 06:25 AM
Sunset 07:17 PM
Wind SSE 1 mph2 km/h
Dew Point 75°F24°C
uv Index 8
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 49%
Sat, 5th
Herald IL Weather - Saturday, Sep 5, 2026 - Sunny
Hi: 98°F 37°C
Lo: 74°F 23°C
Sunrise 06:26 AM
Sunset 07:16 PM
Wind W 2 mph3 km/h
Dew Point 70°F21°C
uv Index 8
Barometric Pressure 29.91 in1013 mb
POP 1% *
Humidity 48%
Sun, 6th
Herald IL Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 87°F 30°C
Lo: 71°F 21°C
Sunrise 06:26 AM
Sunset 07:14 PM
Wind NE 13 mph20 km/h
Dew Point 65°F18°C
uv Index 8
Barometric Pressure 29.97 in1015 mb
POP 2% *
Humidity 54%
Mon, 7th
Herald IL Weather - Monday, Sep 7, 2026 - Sunny
Hi: 86°F 30°C
Lo: 62°F 16°C
Sunrise 06:27 AM
Sunset 07:13 PM
Wind NE 8 mph13 km/h
Dew Point 56°F13°C
uv Index 7
Barometric Pressure 30.06 in1018 mb
POP 2% *
Humidity 42%
Tue, 8th
Herald IL Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 94°F 34°C
Lo: 68°F 20°C
Sunrise 06:28 AM
Sunset 07:11 PM
Wind S 11 mph17 km/h
Dew Point 68°F20°C
uv Index 7
Barometric Pressure 30.09 in1019 mb
POP 2% *
Humidity 50%
Wed, 9th
Herald IL Weather - Wednesday, Sep 9, 2026 - Partly Cloudy
Hi: 94°F 35°C
Lo: 74°F 24°C
Sunrise 06:29 AM
Sunset 07:10 PM
Wind WSW 13 mph21 km/h
Dew Point 64°F18°C
uv Index 8
Barometric Pressure 30.06 in1018 mb
POP 6% *
Humidity 40%
Thu, 10th
Herald IL Weather - Thursday, Sep 10, 2026 - Overcast
Hi: 89°F 32°C
Lo: 65°F 18°C
Sunrise 06:30 AM
Sunset 07:08 PM
Wind WSW 7 mph11 km/h
Dew Point 53°F12°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 4% *
Humidity 39%
Fri, 11th
Herald IL Weather - Friday, Sep 11, 2026 - Overcast
Hi: 72°F 22°C
Lo: 60°F 16°C
Sunrise 06:31 AM
Sunset 07:06 PM
Wind NE 5 mph9 km/h
Dew Point 53°F12°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 13% *
Humidity 54%
Sat, 12th
Herald IL Weather - Saturday, Sep 12, 2026 - Overcast
Hi: 90°F 32°C
Lo: 61°F 16°C
Sunrise 06:32 AM
Sunset 07:05 PM
Wind SSW 4 mph7 km/h
Dew Point 49°F9°C
uv Index 6
Barometric Pressure 30.09 in1019 mb
POP 9% *
Humidity 32%
Sun, 13th
Herald IL Weather - Sunday, Sep 13, 2026 - Cloudy
Hi: 101°F 39°C
Lo: 73°F 23°C
Sunrise 06:32 AM
Sunset 07:03 PM
Wind SW 13 mph20 km/h
Dew Point 56°F13°C
uv Index 7
Barometric Pressure 30.03 in1017 mb
POP 7% *
Humidity 29%
Mon, 14th
Herald IL Weather - Monday, Sep 14, 2026 - Sunny
Hi: 105°F 41°C
Lo: 80°F 26°C
Sunrise 06:33 AM
Sunset 07:02 PM
Wind WSW 12 mph20 km/h
Dew Point 57°F14°C
uv Index 9
Barometric Pressure 30.03 in1017 mb
POP 0% *
Humidity 27%
Tue, 15th
Herald IL Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 105°F 41°C
Lo: 80°F 27°C
Sunrise 06:34 AM
Sunset 07:00 PM
Wind W 6 mph10 km/h
Dew Point 60°F15°C
uv Index 9
Barometric Pressure 30.03 in1017 mb
POP 0% *
Humidity 27%
Wed, 16th
Herald IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 106°F 41°C
Lo: 81°F 27°C
Sunrise 06:35 AM
Sunset 06:59 PM
Wind ENE 3 mph5 km/h
Dew Point 60°F15°C
uv Index 9
Barometric Pressure 30.06 in1018 mb
POP 0% *
Humidity 26%
Thu, 17th
Herald IL Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 106°F 41°C
Lo: 79°F 26°C
Sunrise 06:36 AM
Sunset 06:57 PM
Wind SE 5 mph8 km/h
Dew Point 60°F16°C
uv Index 9
Barometric Pressure 30.09 in1019 mb
POP 0% *
Humidity 29%
* POP = Probability of Precipitation. Data for 12:00 PM.