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Allison IL Weather - Clear - 86°F
Clear
86°F
Updated 9:21 pm
Feels Like 93°F
Humidity 67%
Wind NNE 6 mph
Barometer  29.88 in
Dew Point 74°F
Allison IL Weather - Clear - 30°C
Clear
30°C
Updated 9:21 pm
Feels Like 34°C
Humidity 67%
Wind NNE 10 km/h
Barometer  101.1 kPa
Dew Point 23°C
Allison, IL Weather and Current Conditionsallison il weather forecast

Allison, IL Weather Forecast

Allison Illinois WeatherAllison, Illinois Weather Weather Forecast
Here is the API 14 day weather forecast for Allison, Illinois. Note: The 7-day weather forecast for Allison, IL is the most reliable and accurate weather forecast. This template should only be used as a probable scenario. Forecasting weather beyond the next 7 days is a challenge.
Allison, IL Weather Forecast Dated: 921 PM Sat Sep 05 2026
Expect a hot stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate. Isolated storms at times.

Saturday, September 5, 2026

Mid-Morning
Allison Weather - 2026-09-05 - Morning - Sunny
89°F 32°C
Sunny
Mid-Afternoon
Allison Weather - 2026-09-05 - Afternoon - Sunny
101°F 39°C
Sunny
Early-Evening
Allison Weather - 2026-09-05 - Evening - Overcast
92°F 34°C
Overcast
Scorching heat reaching 101°F 39°C, feeling like 111°F 44°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds turning from the WNW to the SSW at 12 mph 19 km/h. Gusts up to 20 mph 31 km/h.

Sunday, September 6, 2026

Mid-Morning
Allison Weather - 2026-09-06 - Morning - Sunny
71°F 21°C
Sunny
Mid-Afternoon
Allison Weather - 2026-09-06 - Afternoon - Sunny
88°F 31°C
Sunny
Early-Evening
Allison Weather - 2026-09-06 - Evening - Sunny
77°F 25°C
Sunny
Balmy with temperatures reaching 88°F 31°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds switching from the NE to the ENE at 12 mph 20 km/h. Gusts up to 21 mph 34 km/h.

Monday, September 7, 2026

Mid-Morning
Allison Weather - 2026-09-07 - Morning - Sunny
69°F 20°C
Sunny
Mid-Afternoon
Allison Weather - 2026-09-07 - Afternoon - Sunny
90°F 32°C
Sunny
Early-Evening
Allison Weather - 2026-09-07 - Evening - Cloudy
80°F 27°C
Cloudy
Sizzling hot with 90°F 32°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds moving from the ENE to the NE at 8 mph 12 km/h.

Tuesday, September 8, 2026

Mid-Morning
Allison Weather - 2026-09-08 - Morning - Cloudy
77°F 25°C
Cloudy
Mid-Afternoon
Allison Weather - 2026-09-08 - Afternoon - Partly Cloudy
96°F 36°C
Partly Cloudy
Early-Evening
Allison Weather - 2026-09-08 - Evening - Sunny
89°F 32°C
Sunny
Hot temperatures near 96°F 36°C, overcast in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds swinging from the SSW to the SSE at 12 mph 19 km/h. Gusts up to 23 mph 37 km/h.

Wednesday, September 9, 2026

Mid-Morning
Allison Weather - 2026-09-09 - Morning - Sunny
84°F 29°C
Sunny
Mid-Afternoon
Allison Weather - 2026-09-09 - Afternoon - Scattered Showers
101°F 38°C
Scattered Showers
Early-Evening
Allison Weather - 2026-09-09 - Evening - Scattered Showers
85°F 30°C
Scattered Showers
Scorching hot near 101°F 38°C, scattered downpours possible, with steady humidity and barometric pressure falling. Winds shifting from the SW to the NNW at 17 mph 27 km/h. Gusts up to 25 mph 41 km/h.

Thursday, September 10, 2026

Mid-Morning
Allison Weather - 2026-09-10 - Morning - Light Showers
71°F 22°C
Light Showers
Mid-Afternoon
Allison Weather - 2026-09-10 - Afternoon - Light Showers
77°F 25°C
Light Showers
Early-Evening
Allison Weather - 2026-09-10 - Evening - Light Showers
75°F 24°C
Light Showers
Pleasant near 77°F 25°C, on-and-off showers throughout the day, with steady humidity and steady pressure. Winds turning from the W to the SE at 7 mph 11 km/h.

Friday, September 11, 2026

Mid-Morning
Allison Weather - 2026-09-11 - Morning - Sunny
71°F 22°C
Sunny
Mid-Afternoon
Allison Weather - 2026-09-11 - Afternoon - Partly Cloudy
85°F 29°C
Partly Cloudy
Early-Evening
Allison Weather - 2026-09-11 - Evening - Sunny
77°F 25°C
Sunny
Balmy with temperatures reaching 85°F 29°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds switching from the ENE to the E at 8 mph 13 km/h.

Saturday, September 12, 2026

Mid-Morning
Allison Weather - 2026-09-12 - Morning - Sunny
74°F 23°C
Sunny
Mid-Afternoon
Allison Weather - 2026-09-12 - Afternoon - Sunny
90°F 32°C
Sunny
Early-Evening
Allison Weather - 2026-09-12 - Evening - Sunny
83°F 28°C
Sunny
Sizzling hot with 90°F 32°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the SSE to the SE at 8 mph 13 km/h.

Sunday, September 13, 2026

Mid-Morning
Allison Weather - 2026-09-13 - Morning - Sunny
81°F 27°C
Sunny
Mid-Afternoon
Allison Weather - 2026-09-13 - Afternoon - Overcast
91°F 33°C
Overcast
Early-Evening
Allison Weather - 2026-09-13 - Evening - Overcast
84°F 29°C
Overcast
Very hot with a high of 91°F 33°C, feeling closer to 94°F 35°C in the humidity, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds swinging from the SSW to the S at 6 mph 10 km/h.

Monday, September 14, 2026

Mid-Morning
Allison Weather - 2026-09-14 - Morning - Sunny
80°F 26°C
Sunny
Mid-Afternoon
Allison Weather - 2026-09-14 - Afternoon - Partly Cloudy
92°F 33°C
Partly Cloudy
Early-Evening
Allison Weather - 2026-09-14 - Evening - Overcast
84°F 29°C
Overcast
Sizzling hot near 92°F 33°C with a heat index reaching 96°F 36°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure.

Tuesday, September 15, 2026

Mid-Morning
Allison Weather - 2026-09-15 - Morning - Light Showers
80°F 26°C
Light Showers
Mid-Afternoon
Allison Weather - 2026-09-15 - Afternoon - Overcast
94°F 34°C
Overcast
Early-Evening
Allison Weather - 2026-09-15 - Evening - Overcast
87°F 30°C
Overcast
Hot and sweltering around 94°F 34°C (heat index 97°F 36°C), scattered morning showers before drying out later, with lower humidity and steady pressure.

Wednesday, September 16, 2026

Mid-Morning
Allison Weather - 2026-09-16 - Morning - Cloudy
86°F 30°C
Cloudy
Mid-Afternoon
Allison Weather - 2026-09-16 - Afternoon - Sunny
102°F 39°C
Sunny
Early-Evening
Allison Weather - 2026-09-16 - Evening - Nearby Thunderstorms
88°F 32°C
Nearby Thunderstorms
Dangerously hot with a high of 102°F 39°C, heavy thunderstorms conditions at times, with steady humidity and barometric pressure falling. Winds shifting from the SW to the SSW at 9 mph 14 km/h.

Thursday, September 17, 2026

Mid-Morning
Allison Weather - 2026-09-17 - Morning - Scattered Showers
77°F 25°C
Scattered Showers
Mid-Afternoon
Allison Weather - 2026-09-17 - Afternoon - Overcast
93°F 34°C
Overcast
Early-Evening
Allison Weather - 2026-09-17 - Evening - Overcast
89°F 32°C
Overcast
Sizzling hot near 93°F 34°C with a heat index reaching 96°F 36°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling. Winds turning from the SW to the S at 8 mph 13 km/h.

Friday, September 18, 2026

Mid-Morning
Allison Weather - 2026-09-18 - Morning - Partly Cloudy
80°F 27°C
Partly Cloudy
Mid-Afternoon
Allison Weather - 2026-09-18 - Afternoon - Partly Cloudy
98°F 37°C
Partly Cloudy
Early-Evening
Allison Weather - 2026-09-18 - Evening - Overcast
86°F 30°C
Overcast
Hot temperatures near 98°F 37°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds switching from the W to the NE at 13 mph 20 km/h. Gusts up to 23 mph 38 km/h.

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Weather by the Numbers

Sat, 5th
Allison IL Weather - Saturday, Sep 5, 2026 - Sunny
Hi: 101°F 39°C
Lo: 77°F 25°C
Sunrise 06:24 AM
Sunset 07:15 PM
Wind W 8 mph12 km/h
Dew Point 75°F24°C
uv Index 8
Barometric Pressure 29.88 in1012 mb
POP 1% *
Humidity 45%
Sun, 6th
Allison IL Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 88°F 31°C
Lo: 67°F 20°C
Sunrise 06:24 AM
Sunset 07:13 PM
Wind ENE 13 mph21 km/h
Dew Point 59°F15°C
uv Index 8
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 42%
Mon, 7th
Allison IL Weather - Monday, Sep 7, 2026 - Sunny
Hi: 90°F 32°C
Lo: 60°F 16°C
Sunrise 06:25 AM
Sunset 07:12 PM
Wind E 8 mph12 km/h
Dew Point 52°F11°C
uv Index 7
Barometric Pressure 30.03 in1017 mb
POP 1% *
Humidity 34%
Tue, 8th
Allison IL Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 97°F 36°C
Lo: 67°F 19°C
Sunrise 06:26 AM
Sunset 07:10 PM
Wind SSW 10 mph15 km/h
Dew Point 65°F18°C
uv Index 7
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 43%
Wed, 9th
Allison IL Weather - Wednesday, Sep 9, 2026 - Sunny
Hi: 101°F 38°C
Lo: 70°F 21°C
Sunrise 06:27 AM
Sunset 07:09 PM
Wind WSW 15 mph24 km/h
Dew Point 61°F16°C
uv Index 7
Barometric Pressure 30.03 in1017 mb
POP 1% *
Humidity 31%
Thu, 10th
Allison IL Weather - Thursday, Sep 10, 2026 - Light Rain Shower
Hi: 77°F 25°C
Lo: 70°F 21°C
Sunrise 06:28 AM
Sunset 07:07 PM
Wind WSW 10 mph17 km/h
Dew Point 70°F21°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 53% *
Humidity 86%
Fri, 11th
Allison IL Weather - Friday, Sep 11, 2026 - Partly Cloudy
Hi: 85°F 30°C
Lo: 64°F 18°C
Sunrise 06:29 AM
Sunset 07:06 PM
Wind ENE 6 mph10 km/h
Dew Point 57°F14°C
uv Index 7
Barometric Pressure 30.03 in1017 mb
POP 4% *
Humidity 47%
Sat, 12th
Allison IL Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 91°F 33°C
Lo: 66°F 19°C
Sunrise 06:30 AM
Sunset 07:04 PM
Wind S 9 mph14 km/h
Dew Point 56°F14°C
uv Index 7
Barometric Pressure 30 in1016 mb
POP 1% *
Humidity 38%
Sun, 13th
Allison IL Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 94°F 34°C
Lo: 72°F 22°C
Sunrise 06:31 AM
Sunset 07:02 PM
Wind SSW 11 mph18 km/h
Dew Point 65°F19°C
uv Index 8
Barometric Pressure 30.03 in1017 mb
POP 6% *
Humidity 44%
Mon, 14th
Allison IL Weather - Monday, Sep 14, 2026 - Sunny
Hi: 92°F 33°C
Lo: 73°F 23°C
Sunrise 06:32 AM
Sunset 07:01 PM
Wind S 7 mph12 km/h
Dew Point 67°F19°C
uv Index 8
Barometric Pressure 30.09 in1019 mb
POP 3% *
Humidity 49%
Tue, 15th
Allison IL Weather - Tuesday, Sep 15, 2026 - Patchy Rain Nearby
Hi: 94°F 35°C
Lo: 74°F 23°C
Sunrise 06:32 AM
Sunset 06:59 PM
Wind SSW 6 mph10 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 30.03 in1017 mb
POP 17% *
Humidity 46%
Wed, 16th
Allison IL Weather - Wednesday, Sep 16, 2026 - Cloudy
Hi: 102°F 39°C
Lo: 78°F 26°C
Sunrise 06:33 AM
Sunset 06:57 PM
Wind WSW 8 mph13 km/h
Dew Point 63°F17°C
uv Index 8
Barometric Pressure 30.15 in1021 mb
POP 2% *
Humidity 34%
Thu, 17th
Allison IL Weather - Thursday, Sep 17, 2026 - Cloudy
Hi: 94°F 34°C
Lo: 75°F 24°C
Sunrise 06:34 AM
Sunset 06:56 PM
Wind W 7 mph11 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 30.09 in1019 mb
POP 10% *
Humidity 51%
Fri, 18th
Allison IL Weather - Friday, Sep 18, 2026 - Cloudy
Hi: 99°F 37°C
Lo: 74°F 23°C
Sunrise 06:35 AM
Sunset 06:54 PM
Wind WNW 8 mph13 km/h
Dew Point 64°F18°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 5% *
Humidity 41%
* POP = Probability of Precipitation. Data for 12:00 PM.