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Allin IL Weather - Clear - 61°F
Clear
61°F
Updated 7:42 am
Feels Like 61°F
Humidity 96%
Wind SE 3 mph
Barometer  30.15 in
Dew Point 60°F
Allin IL Weather - Clear - 16°C
Clear
16°C
Updated 7:42 am
Feels Like 16°C
Humidity 96%
Wind SE 5 km/h
Barometer  102.1 kPa
Dew Point 16°C
Allin, IL Weather and Current Conditionsallin il weather forecast

Allin, IL Weather Forecast

Allin Illinois WeatherAllin, Illinois Weather Weather Forecast
14 day API weather forecast for Allin, Illinois. Note: The 7-day weather forecast for Allin, 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.
Allin, IL Weather Forecast Dated: 742 AM Tue Sep 08 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Tuesday, September 8, 2026

Mid-Morning
Allin Weather - 2026-09-08 - Morning - Overcast
71°F 21°C
Overcast
Mid-Afternoon
Allin Weather - 2026-09-08 - Afternoon - Overcast
85°F 30°C
Overcast
Early-Evening
Allin Weather - 2026-09-08 - Evening - Sunny
82°F 28°C
Sunny
Warm and summery near 85°F 30°C, overcast through the afternoon, turning sunny this evening, with lower humidity and barometric pressure falling. Winds out of the SSE at 9 mph 14 km/h. Gusts up to 21 mph 33 km/h.

Wednesday, September 9, 2026

Mid-Morning
Allin Weather - 2026-09-09 - Morning - Light Showers
72°F 22°C
Light Showers
Mid-Afternoon
Allin Weather - 2026-09-09 - Afternoon - Cloudy
82°F 28°C
Cloudy
Early-Evening
Allin Weather - 2026-09-09 - Evening - Overcast
77°F 25°C
Overcast
Quite warm reaching 82°F 28°C, feeling like 85°F 29°C during peak afternoon, scattered morning showers before drying out later, with steady humidity and steady pressure. Winds switching from the WSW to the NW at 3 mph 5 km/h.

Thursday, September 10, 2026

Mid-Morning
Allin Weather - 2026-09-10 - Morning - Light Showers
68°F 20°C
Light Showers
Mid-Afternoon
Allin Weather - 2026-09-10 - Afternoon - Partly Cloudy
77°F 25°C
Partly Cloudy
Early-Evening
Allin Weather - 2026-09-10 - Evening - Sunny
72°F 22°C
Sunny
Enjoyable around 77°F 25°C, morning showers, giving way to clearing skies, with lower humidity and steady pressure. Winds moving from the NNE to the NE at 8 mph 13 km/h.

Friday, September 11, 2026

Mid-Morning
Allin Weather - 2026-09-11 - Morning - Partly Cloudy
67°F 19°C
Partly Cloudy
Mid-Afternoon
Allin Weather - 2026-09-11 - Afternoon - Cloudy
88°F 31°C
Cloudy
Early-Evening
Allin Weather - 2026-09-11 - Evening - Sunny
79°F 26°C
Sunny
Warm temperatures up to 88°F 31°C, partly cloudy in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds swinging from the SSE to the SE at 9 mph 13 km/h.

Saturday, September 12, 2026

Mid-Morning
Allin Weather - 2026-09-12 - Morning - Scattered Showers
72°F 22°C
Scattered Showers
Mid-Afternoon
Allin Weather - 2026-09-12 - Afternoon - Sunny
86°F 30°C
Sunny
Early-Evening
Allin Weather - 2026-09-12 - Evening - Sunny
82°F 28°C
Sunny
Quite warm reaching 86°F 30°C, feeling like 89°F 32°C during peak afternoon, scattered downpours possible, with steady humidity and steady pressure. Winds shifting from the WSW to the E at 7 mph 12 km/h.

Sunday, September 13, 2026

Mid-Morning
Allin Weather - 2026-09-13 - Morning - Scattered Showers
74°F 24°C
Scattered Showers
Mid-Afternoon
Allin Weather - 2026-09-13 - Afternoon - Overcast
92°F 33°C
Overcast
Early-Evening
Allin Weather - 2026-09-13 - Evening - Sunny
89°F 32°C
Sunny
Very hot with a high of 92°F 33°C, feeling closer to 96°F 36°C in the humidity, locally heavy downpours at times, with lower humidity and barometric pressure falling. Winds turning from the WNW to the S at 12 mph 19 km/h. Gusts up to 29 mph 47 km/h.

Monday, September 14, 2026

Mid-Morning
Allin Weather - 2026-09-14 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
Allin Weather - 2026-09-14 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
Allin Weather - 2026-09-14 - Evening - Sunny
79°F 26°C
Sunny
Sizzling hot near 91°F 33°C with a heat index reaching 95°F 35°C, sunny through the afternoon, turning cloudy this evening, with increasing humidity and steady pressure. Winds switching from the SSW to the NNW at 6 mph 10 km/h.

Tuesday, September 15, 2026

Mid-Morning
Allin Weather - 2026-09-15 - Morning - Overcast
53°F 12°C
Overcast
Mid-Afternoon
Allin Weather - 2026-09-15 - Afternoon - Overcast
62°F 17°C
Overcast
Early-Evening
Allin Weather - 2026-09-15 - Evening - Overcast
58°F 15°C
Overcast
Cool with a high near 62°F 17°C, partly cloudy in the morning, overcast in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds moving from the NNW to the ESE at 11 mph 17 km/h. Gusts up to 20 mph 33 km/h.

Wednesday, September 16, 2026

Mid-Morning
Allin Weather - 2026-09-16 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Allin Weather - 2026-09-16 - Afternoon - Sunny
64°F 18°C
Sunny
Early-Evening
Allin Weather - 2026-09-16 - Evening - Overcast
61°F 16°C
Overcast
Refreshing around 64°F 18°C, cloudy through the afternoon, turning overcast this evening, with steady humidity and steady pressure. Winds swinging from the NNW to the NE at 7 mph 11 km/h.

Thursday, September 17, 2026

Mid-Morning
Allin Weather - 2026-09-17 - Morning - Overcast
57°F 14°C
Overcast
Mid-Afternoon
Allin Weather - 2026-09-17 - Afternoon - Partly Cloudy
68°F 20°C
Partly Cloudy
Early-Evening
Allin Weather - 2026-09-17 - Evening - Sunny
64°F 18°C
Sunny
Mild with a high of 68°F 20°C, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds shifting from the SSE to the SE at 8 mph 13 km/h.

Friday, September 18, 2026

Mid-Morning
Allin Weather - 2026-09-18 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Allin Weather - 2026-09-18 - Afternoon - Overcast
71°F 22°C
Overcast
Early-Evening
Allin Weather - 2026-09-18 - Evening - Overcast
66°F 19°C
Overcast
Pleasant near 71°F 22°C, overcast throughout the day, with increasing humidity and barometric pressure falling. Winds turning from the S to the ESE at 12 mph 18 km/h. Gusts up to 22 mph 36 km/h.

Saturday, September 19, 2026

Mid-Morning
Allin Weather - 2026-09-19 - Morning - Overcast
52°F 11°C
Overcast
Mid-Afternoon
Allin Weather - 2026-09-19 - Afternoon - Overcast
58°F 14°C
Overcast
Early-Evening
Allin Weather - 2026-09-19 - Evening - Overcast
54°F 12°C
Overcast
Cool with a high near 58°F 14°C, overcast throughout the day, with lower humidity and barometric pressure rising. Winds switching from the SE to the NE at 11 mph 17 km/h. Gusts up to 21 mph 33 km/h.

Sunday, September 20, 2026

Mid-Morning
Allin Weather - 2026-09-20 - Morning - Overcast
51°F 10°C
Overcast
Mid-Afternoon
Allin Weather - 2026-09-20 - Afternoon - Sunny
62°F 17°C
Sunny
Early-Evening
Allin Weather - 2026-09-20 - Evening - Sunny
57°F 14°C
Sunny
Refreshing around 62°F 17°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and barometric pressure falling. Winds out of the E at 6 mph 10 km/h.

Monday, September 21, 2026

Mid-Morning
Allin Weather - 2026-09-21 - Morning - Sunny
55°F 13°C
Sunny
Mid-Afternoon
Allin Weather - 2026-09-21 - Afternoon - Sunny
68°F 20°C
Sunny
Early-Evening
Allin Weather - 2026-09-21 - Evening - Sunny
62°F 17°C
Sunny
Mild temperatures up to 68°F 20°C, sunny throughout the day, with steady humidity and steady pressure.

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Weather by the Numbers

Tue, 8th
Allin IL Weather - Tuesday, Sep 8, 2026 - Partly Cloudy
Hi: 86°F 30°C
Lo: 62°F 17°C
Sunrise 06:31 AM
Sunset 07:18 PM
Wind S 7 mph11 km/h
Dew Point 58°F14°C
uv Index 7
Barometric Pressure 30.09 in1019 mb
POP 6% *
Humidity 47%
Wed, 9th
Allin IL Weather - Wednesday, Sep 9, 2026 - Light Rain Shower
Hi: 82°F 28°C
Lo: 72°F 22°C
Sunrise 06:32 AM
Sunset 07:16 PM
Wind W 4 mph6 km/h
Dew Point 66°F19°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 36% *
Humidity 69%
Thu, 10th
Allin IL Weather - Thursday, Sep 10, 2026 - Overcast
Hi: 78°F 25°C
Lo: 65°F 19°C
Sunrise 06:33 AM
Sunset 07:15 PM
Wind N 6 mph10 km/h
Dew Point 64°F18°C
uv Index 4
Barometric Pressure 30 in1016 mb
POP 19% *
Humidity 72%
Fri, 11th
Allin IL Weather - Friday, Sep 11, 2026 - Overcast
Hi: 88°F 31°C
Lo: 61°F 16°C
Sunrise 06:34 AM
Sunset 07:13 PM
Wind S 9 mph14 km/h
Dew Point 67°F20°C
uv Index 6
Barometric Pressure 29.88 in1012 mb
POP 16% *
Humidity 66%
Sat, 12th
Allin IL Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 87°F 31°C
Lo: 67°F 19°C
Sunrise 06:35 AM
Sunset 07:11 PM
Wind SW 3 mph4 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 29.88 in1012 mb
POP 4% *
Humidity 62%
Sun, 13th
Allin IL Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 94°F 35°C
Lo: 74°F 23°C
Sunrise 06:36 AM
Sunset 07:10 PM
Wind SW 10 mph16 km/h
Dew Point 68°F20°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 15% *
Humidity 62%
Mon, 14th
Allin IL Weather - Monday, Sep 14, 2026 - Sunny
Hi: 93°F 34°C
Lo: 69°F 20°C
Sunrise 06:37 AM
Sunset 07:08 PM
Wind SW 14 mph23 km/h
Dew Point 66°F19°C
uv Index 8
Barometric Pressure 29.88 in1012 mb
POP 1% *
Humidity 45%
Tue, 15th
Allin IL Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 67°F 19°C
Lo: 51°F 10°C
Sunrise 06:38 AM
Sunset 07:06 PM
Wind NW 14 mph23 km/h
Dew Point 42°F6°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 9% *
Humidity 55%
Wed, 16th
Allin IL Weather - Wednesday, Sep 16, 2026 - Overcast
Hi: 64°F 18°C
Lo: 47°F 8°C
Sunrise 06:39 AM
Sunset 07:04 PM
Wind NNW 9 mph15 km/h
Dew Point 40°F4°C
uv Index 4
Barometric Pressure 30.36 in1028 mb
POP 4% *
Humidity 47%
Thu, 17th
Allin IL Weather - Thursday, Sep 17, 2026 - Cloudy
Hi: 69°F 21°C
Lo: 53°F 11°C
Sunrise 06:40 AM
Sunset 07:03 PM
Wind SE 6 mph9 km/h
Dew Point 44°F7°C
uv Index 4
Barometric Pressure 30.39 in1029 mb
POP 7% *
Humidity 48%
Fri, 18th
Allin IL Weather - Friday, Sep 18, 2026 - Cloudy
Hi: 74°F 24°C
Lo: 60°F 16°C
Sunrise 06:41 AM
Sunset 07:01 PM
Wind SSW 11 mph18 km/h
Dew Point 46°F8°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 9% *
Humidity 40%
Sat, 19th
Allin IL Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 61°F 16°C
Lo: 51°F 10°C
Sunrise 06:42 AM
Sunset 06:59 PM
Wind NNE 16 mph25 km/h
Dew Point 42°F6°C
uv Index 3
Barometric Pressure 30.24 in1024 mb
POP 14% *
Humidity 60%
Sun, 20th
Allin IL Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 62°F 17°C
Lo: 45°F 7°C
Sunrise 06:43 AM
Sunset 06:58 PM
Wind E 8 mph13 km/h
Dew Point 38°F4°C
uv Index 4
Barometric Pressure 30.27 in1025 mb
POP 2% *
Humidity 48%
Mon, 21st
Allin IL Weather - Monday, Sep 21, 2026 - Sunny
Hi: 69°F 20°C
Lo: 48°F 9°C
Sunrise 06:44 AM
Sunset 06:56 PM
Wind SE 4 mph6 km/h
Dew Point 41°F5°C
uv Index 5
Barometric Pressure 30.27 in1025 mb
POP 1% *
Humidity 44%
* POP = Probability of Precipitation. Data for 12:00 PM.