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Half Day IL Weather - Clear - 92°F
Clear
92°F
Updated 4:25 pm
Feels Like 97°F
Humidity 48%
Wind SW 9 mph
Barometer  29.89 in
Dew Point 70°F
Half Day IL Weather - Clear - 33°C
Clear
33°C
Updated 4:25 pm
Feels Like 36°C
Humidity 48%
Wind SW 14 km/h
Barometer  101.2 kPa
Dew Point 21°C
Half Day, IL Weather and Current Conditionshalf day il weather forecast

Half Day, IL Weather Forecast

Half Day Illinois WeatherHalf Day, Illinois Weather Weather Forecast
14 day API weather forecast for Half Day, Illinois. Note: The 7-day weather forecast for Half Day, 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.
Half Day, IL Weather Forecast Dated: 425 PM Fri Sep 04 2026
Expect a very warm period with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.

Friday, September 4, 2026

Mid-Morning
Half Day Weather - 2026-09-04 - Morning - Sunny
84°F 29°C
Sunny
Mid-Afternoon
Half Day Weather - 2026-09-04 - Afternoon - Sunny
103°F 39°C
Sunny
Early-Evening
Half Day Weather - 2026-09-04 - Evening - Sunny
91°F 33°C
Sunny
Scorching heat reaching 103°F 39°C, feeling like 115°F 46°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds turning from the WSW to the WNW at 8 mph 12 km/h.

Saturday, September 5, 2026

Mid-Morning
Half Day Weather - 2026-09-05 - Morning - Scattered Showers
72°F 22°C
Scattered Showers
Mid-Afternoon
Half Day Weather - 2026-09-05 - Afternoon - Scattered Showers
73°F 23°C
Scattered Showers
Early-Evening
Half Day Weather - 2026-09-05 - Evening - Sunny
70°F 21°C
Sunny
Comfortable with temperatures reaching 73°F 23°C, scattered downpours possible, with lower humidity and steady pressure. Winds blowing from the NE at 9 mph 14 km/h.

Sunday, September 6, 2026

Mid-Morning
Half Day Weather - 2026-09-06 - Morning - Sunny
70°F 21°C
Sunny
Mid-Afternoon
Half Day Weather - 2026-09-06 - Afternoon - Sunny
74°F 24°C
Sunny
Early-Evening
Half Day Weather - 2026-09-06 - Evening - Sunny
70°F 21°C
Sunny
Enjoyable around 74°F 24°C, sunny throughout the day, with steady humidity and steady pressure. Winds E at 8 mph 13 km/h.

Monday, September 7, 2026

Mid-Morning
Half Day Weather - 2026-09-07 - Morning - Sunny
68°F 20°C
Sunny
Mid-Afternoon
Half Day Weather - 2026-09-07 - Afternoon - Cloudy
75°F 24°C
Cloudy
Early-Evening
Half Day Weather - 2026-09-07 - Evening - Overcast
70°F 21°C
Overcast
Mild temperatures up to 75°F 24°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds swinging from the SE to the ESE at 8 mph 12 km/h.

Tuesday, September 8, 2026

Mid-Morning
Half Day Weather - 2026-09-08 - Morning - Overcast
69°F 20°C
Overcast
Mid-Afternoon
Half Day Weather - 2026-09-08 - Afternoon - Sunny
84°F 29°C
Sunny
Early-Evening
Half Day Weather - 2026-09-08 - Evening - Partly Cloudy
82°F 28°C
Partly Cloudy
Very warm with a high of 84°F 29°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds blowing from the SSW at 12 mph 20 km/h. Gusts up to 29 mph 46 km/h.

Wednesday, September 9, 2026

Mid-Morning
Half Day Weather - 2026-09-09 - Morning - Scattered Showers
75°F 24°C
Scattered Showers
Mid-Afternoon
Half Day Weather - 2026-09-09 - Afternoon - Overcast
78°F 26°C
Overcast
Early-Evening
Half Day Weather - 2026-09-09 - Evening - Overcast
73°F 23°C
Overcast
Pleasant near 78°F 26°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds turning from the W to the WNW at 9 mph 13 km/h. Gusts up to 25 mph 40 km/h.

Thursday, September 10, 2026

Mid-Morning
Half Day Weather - 2026-09-10 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Half Day Weather - 2026-09-10 - Afternoon - Overcast
69°F 20°C
Overcast
Early-Evening
Half Day Weather - 2026-09-10 - Evening - Overcast
63°F 17°C
Overcast
Comfortable with temperatures reaching 69°F 20°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.

Friday, September 11, 2026

Mid-Morning
Half Day Weather - 2026-09-11 - Morning - Overcast
64°F 18°C
Overcast
Mid-Afternoon
Half Day Weather - 2026-09-11 - Afternoon - Sunny
71°F 21°C
Sunny
Early-Evening
Half Day Weather - 2026-09-11 - Evening - Overcast
65°F 19°C
Overcast
Enjoyable around 71°F 21°C, partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds switching from the S to the ESE at 7 mph 12 km/h.

Saturday, September 12, 2026

Mid-Morning
Half Day Weather - 2026-09-12 - Morning - Partly Cloudy
66°F 19°C
Partly Cloudy
Mid-Afternoon
Half Day Weather - 2026-09-12 - Afternoon - Overcast
73°F 23°C
Overcast
Early-Evening
Half Day Weather - 2026-09-12 - Evening - Overcast
73°F 23°C
Overcast
Mild temperatures up to 73°F 23°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling. Winds blowing from the SSW at 11 mph 17 km/h. Gusts up to 28 mph 45 km/h.

Sunday, September 13, 2026

Mid-Morning
Half Day Weather - 2026-09-13 - Morning - Overcast
76°F 25°C
Overcast
Mid-Afternoon
Half Day Weather - 2026-09-13 - Afternoon - Cloudy
90°F 32°C
Cloudy
Early-Evening
Half Day Weather - 2026-09-13 - Evening - Overcast
84°F 29°C
Overcast
Sizzling hot near 90°F 32°C with a heat index reaching 93°F 34°C, overcast throughout the day, with steady humidity and steady pressure. Winds decreasing from SW 15 mph 23 km/h to SE 7 mph 11 km/h.

Monday, September 14, 2026

Mid-Morning
Half Day Weather - 2026-09-14 - Morning - Partly Cloudy
78°F 25°C
Partly Cloudy
Mid-Afternoon
Half Day Weather - 2026-09-14 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
Half Day Weather - 2026-09-14 - Evening - Sunny
86°F 30°C
Sunny
Hot and sweltering around 91°F 33°C (heat index 95°F 35°C), cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure.

Tuesday, September 15, 2026

Mid-Morning
Half Day Weather - 2026-09-15 - Morning - Sunny
85°F 29°C
Sunny
Mid-Afternoon
Half Day Weather - 2026-09-15 - Afternoon - Sunny
94°F 35°C
Sunny
Early-Evening
Half Day Weather - 2026-09-15 - Evening - Sunny
91°F 33°C
Sunny
Very hot with a high of 94°F 35°C, feeling closer to 100°F 38°C in the humidity, sunny throughout the day, with steady humidity and steady pressure. Winds shifting from the WSW to the SSW at 10 mph 16 km/h. Gusts up to 26 mph 42 km/h.

Wednesday, September 16, 2026

Mid-Morning
Half Day Weather - 2026-09-16 - Morning - Sunny
84°F 29°C
Sunny
Mid-Afternoon
Half Day Weather - 2026-09-16 - Afternoon - Sunny
94°F 34°C
Sunny
Early-Evening
Half Day Weather - 2026-09-16 - Evening - Sunny
90°F 32°C
Sunny
Sizzling hot near 94°F 34°C with a heat index reaching 98°F 36°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the WSW to the S at 8 mph 12 km/h.

Thursday, September 17, 2026

Mid-Morning
Half Day Weather - 2026-09-17 - Morning - Sunny
85°F 30°C
Sunny
Mid-Afternoon
Half Day Weather - 2026-09-17 - Afternoon - Sunny
96°F 36°C
Sunny
Early-Evening
Half Day Weather - 2026-09-17 - Evening - Sunny
91°F 33°C
Sunny
Hot and sweltering around 96°F 36°C (heat index 101°F 39°C), sunny throughout the day, with steady humidity and steady pressure. Winds switching from the WSW to the SSW at 6 mph 10 km/h.

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Weather by the Numbers

Fri, 4th
Half Day IL Weather - Friday, Sep 4, 2026 - Sunny
Hi: 103°F 39°C
Lo: 73°F 23°C
Sunrise 06:20 AM
Sunset 07:21 PM
Wind SW 5 mph8 km/h
Dew Point 80°F26°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 4% *
Humidity 66%
Sat, 5th
Half Day IL Weather - Saturday, Sep 5, 2026 - Patchy Rain Nearby
Hi: 77°F 25°C
Lo: 67°F 20°C
Sunrise 06:21 AM
Sunset 07:19 PM
Wind NE 9 mph14 km/h
Dew Point 68°F20°C
uv Index 2
Barometric Pressure 29.97 in1015 mb
POP 29% *
Humidity 88%
Sun, 6th
Half Day IL Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 74°F 24°C
Lo: 67°F 19°C
Sunrise 06:22 AM
Sunset 07:17 PM
Wind E 9 mph14 km/h
Dew Point 54°F12°C
uv Index 7
Barometric Pressure 30.12 in1020 mb
POP 2% *
Humidity 51%
Mon, 7th
Half Day IL Weather - Monday, Sep 7, 2026 - Partly Cloudy
Hi: 76°F 24°C
Lo: 65°F 18°C
Sunrise 06:23 AM
Sunset 07:15 PM
Wind ESE 9 mph15 km/h
Dew Point 54°F12°C
uv Index 7
Barometric Pressure 30.15 in1021 mb
POP 3% *
Humidity 48%
Tue, 8th
Half Day IL Weather - Tuesday, Sep 8, 2026 - Overcast
Hi: 84°F 29°C
Lo: 65°F 18°C
Sunrise 06:24 AM
Sunset 07:14 PM
Wind SSW 9 mph14 km/h
Dew Point 58°F14°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 12% *
Humidity 50%
Wed, 9th
Half Day IL Weather - Wednesday, Sep 9, 2026 - Overcast
Hi: 83°F 28°C
Lo: 67°F 20°C
Sunrise 06:25 AM
Sunset 07:12 PM
Wind WNW 13 mph22 km/h
Dew Point 54°F12°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 10% *
Humidity 43%
Thu, 10th
Half Day IL Weather - Thursday, Sep 10, 2026 - Partly Cloudy
Hi: 69°F 21°C
Lo: 54°F 12°C
Sunrise 06:27 AM
Sunset 07:10 PM
Wind SW 7 mph11 km/h
Dew Point 50°F10°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 10% *
Humidity 57%
Fri, 11th
Half Day IL Weather - Friday, Sep 11, 2026 - Sunny
Hi: 72°F 22°C
Lo: 60°F 15°C
Sunrise 06:28 AM
Sunset 07:08 PM
Wind E 5 mph8 km/h
Dew Point 53°F11°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 3% *
Humidity 54%
Sat, 12th
Half Day IL Weather - Saturday, Sep 12, 2026 - Overcast
Hi: 74°F 23°C
Lo: 62°F 17°C
Sunrise 06:29 AM
Sunset 07:07 PM
Wind SSW 13 mph21 km/h
Dew Point 54°F12°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 13% *
Humidity 54%
Sun, 13th
Half Day IL Weather - Sunday, Sep 13, 2026 - Cloudy
Hi: 92°F 33°C
Lo: 74°F 23°C
Sunrise 06:30 AM
Sunset 07:05 PM
Wind SW 13 mph21 km/h
Dew Point 66°F19°C
uv Index 6
Barometric Pressure 29.8 in1009 mb
POP 10% *
Humidity 56%
Mon, 14th
Half Day IL Weather - Monday, Sep 14, 2026 - Cloudy
Hi: 92°F 33°C
Lo: 74°F 23°C
Sunrise 06:31 AM
Sunset 07:03 PM
Wind SE 3 mph5 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 29.94 in1014 mb
POP 3% *
Humidity 51%
Tue, 15th
Half Day IL Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 95°F 35°C
Lo: 82°F 28°C
Sunrise 06:32 AM
Sunset 07:01 PM
Wind WSW 12 mph19 km/h
Dew Point 64°F18°C
uv Index 8
Barometric Pressure 29.91 in1013 mb
POP 1% *
Humidity 40%
Wed, 16th
Half Day IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 94°F 34°C
Lo: 81°F 27°C
Sunrise 06:33 AM
Sunset 06:59 PM
Wind WSW 11 mph17 km/h
Dew Point 63°F17°C
uv Index 8
Barometric Pressure 30 in1016 mb
POP 1% *
Humidity 39%
Thu, 17th
Half Day IL Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 97°F 36°C
Lo: 80°F 27°C
Sunrise 06:34 AM
Sunset 06:58 PM
Wind WSW 9 mph14 km/h
Dew Point 64°F18°C
uv Index 8
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 38%
* POP = Probability of Precipitation. Data for 12:00 PM.