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Assumption IL Weather - Clear - 78°F
Clear
78°F
Updated 1:45 am
Feels Like 82°F
Humidity 84%
Wind N 0 mph
Barometer  29.94 in
Dew Point 73°F
Assumption IL Weather - Clear - 26°C
Clear
26°C
Updated 1:45 am
Feels Like 28°C
Humidity 84%
Wind N 0 km/h
Barometer  101.3 kPa
Dew Point 23°C
Assumption, IL Weather and Current Conditionsassumption il weather forecast

Assumption, IL Weather Forecast

Assumption Illinois WeatherAssumption, Illinois Weather Weather Forecast
14 day API weather forecast for Assumption, Illinois. Note: The 7-day weather forecast for Assumption, 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.
Assumption, IL Weather Forecast Dated: 145 AM 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.

Saturday, September 5, 2026

Mid-Morning
Assumption Weather - 2026-09-05 - Morning - Overcast
85°F 29°C
Overcast
Mid-Afternoon
Assumption Weather - 2026-09-05 - Afternoon - Overcast
101°F 38°C
Overcast
Early-Evening
Assumption Weather - 2026-09-05 - Evening - Sunny
88°F 31°C
Sunny
Scorching hot near 101°F 38°C, overcast through the afternoon, turning sunny this evening, with steady humidity and steady pressure. Winds turning from the WNW to the ENE at 12 mph 20 km/h. Gusts up to 20 mph 31 km/h.

Sunday, September 6, 2026

Mid-Morning
Assumption Weather - 2026-09-06 - Morning - Sunny
74°F 23°C
Sunny
Mid-Afternoon
Assumption Weather - 2026-09-06 - Afternoon - Partly Cloudy
86°F 30°C
Partly Cloudy
Early-Evening
Assumption Weather - 2026-09-06 - Evening - Cloudy
74°F 24°C
Cloudy
Balmy with temperatures reaching 86°F 30°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds switching from the E to the ENE at 12 mph 19 km/h.

Monday, September 7, 2026

Mid-Morning
Assumption Weather - 2026-09-07 - Morning - Sunny
69°F 21°C
Sunny
Mid-Afternoon
Assumption Weather - 2026-09-07 - Afternoon - Sunny
88°F 31°C
Sunny
Early-Evening
Assumption Weather - 2026-09-07 - Evening - Sunny
77°F 25°C
Sunny
Quite warm around 88°F 31°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the E to the ENE at 11 mph 17 km/h. Gusts up to 22 mph 36 km/h.

Tuesday, September 8, 2026

Mid-Morning
Assumption Weather - 2026-09-08 - Morning - Sunny
75°F 24°C
Sunny
Mid-Afternoon
Assumption Weather - 2026-09-08 - Afternoon - Sunny
98°F 37°C
Sunny
Early-Evening
Assumption Weather - 2026-09-08 - Evening - Sunny
90°F 32°C
Sunny
Hot temperatures near 98°F 37°C, sunny throughout the day, with lower humidity and steady pressure. Winds out of the SSW at 10 mph 15 km/h.

Wednesday, September 9, 2026

Mid-Morning
Assumption Weather - 2026-09-09 - Morning - Partly Cloudy
80°F 27°C
Partly Cloudy
Mid-Afternoon
Assumption Weather - 2026-09-09 - Afternoon - Sunny
96°F 36°C
Sunny
Early-Evening
Assumption Weather - 2026-09-09 - Evening - Sunny
84°F 29°C
Sunny
Hot and sweltering around 96°F 36°C (heat index 99°F 37°C), cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds shifting from the SW to the NNE at 10 mph 15 km/h.

Thursday, September 10, 2026

Mid-Morning
Assumption Weather - 2026-09-10 - Morning - Overcast
75°F 24°C
Overcast
Mid-Afternoon
Assumption Weather - 2026-09-10 - Afternoon - Overcast
84°F 29°C
Overcast
Early-Evening
Assumption Weather - 2026-09-10 - Evening - Overcast
77°F 25°C
Overcast
Warm and summery near 84°F 29°C, overcast throughout the day, with steady humidity and steady pressure. Winds turning from the NE to the ENE at 9 mph 14 km/h.

Friday, September 11, 2026

Mid-Morning
Assumption Weather - 2026-09-11 - Morning - Overcast
71°F 22°C
Overcast
Mid-Afternoon
Assumption Weather - 2026-09-11 - Afternoon - Overcast
89°F 32°C
Overcast
Early-Evening
Assumption Weather - 2026-09-11 - Evening - Partly Cloudy
82°F 28°C
Partly Cloudy
Balmy with temperatures reaching 89°F 32°C, overcast in the morning, becoming cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds out of the SE at 9 mph 14 km/h.

Saturday, September 12, 2026

Mid-Morning
Assumption Weather - 2026-09-12 - Morning - Light Showers
69°F 21°C
Light Showers
Mid-Afternoon
Assumption Weather - 2026-09-12 - Afternoon - Scattered Showers
87°F 31°C
Scattered Showers
Early-Evening
Assumption Weather - 2026-09-12 - Evening - Sunny
85°F 29°C
Sunny
Quite warm around 87°F 31°C, scattered downpours possible, with lower humidity and steady pressure. Winds moving from the ESE to the SSE at 12 mph 20 km/h. Gusts up to 23 mph 37 km/h.

Sunday, September 13, 2026

Mid-Morning
Assumption Weather - 2026-09-13 - Morning - Sunny
84°F 29°C
Sunny
Mid-Afternoon
Assumption Weather - 2026-09-13 - Afternoon - Sunny
98°F 37°C
Sunny
Early-Evening
Assumption Weather - 2026-09-13 - Evening - Overcast
90°F 33°C
Overcast
Hot temperatures near 98°F 37°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds swinging from the S to the SSE at 11 mph 18 km/h. Gusts up to 21 mph 34 km/h.

Monday, September 14, 2026

Mid-Morning
Assumption Weather - 2026-09-14 - Morning - Scattered Showers
79°F 26°C
Scattered Showers
Mid-Afternoon
Assumption Weather - 2026-09-14 - Afternoon - Sunny
92°F 34°C
Sunny
Early-Evening
Assumption Weather - 2026-09-14 - Evening - Scattered Showers
88°F 31°C
Scattered Showers
Sizzling hot near 92°F 34°C with a heat index reaching 96°F 36°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds shifting from the S to the SSE at 10 mph 16 km/h. Gusts up to 21 mph 33 km/h.

Tuesday, September 15, 2026

Mid-Morning
Assumption Weather - 2026-09-15 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
Assumption Weather - 2026-09-15 - Afternoon - Sunny
95°F 35°C
Sunny
Early-Evening
Assumption Weather - 2026-09-15 - Evening - Sunny
87°F 31°C
Sunny
Very hot with temperatures reaching 95°F 35°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the S to the SSE at 9 mph 15 km/h.

Wednesday, September 16, 2026

Mid-Morning
Assumption Weather - 2026-09-16 - Morning - Sunny
83°F 28°C
Sunny
Mid-Afternoon
Assumption Weather - 2026-09-16 - Afternoon - Sunny
96°F 36°C
Sunny
Early-Evening
Assumption Weather - 2026-09-16 - Evening - Sunny
88°F 31°C
Sunny
Hot and sweltering around 96°F 36°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds switching from the SSW to the S at 9 mph 14 km/h.

Thursday, September 17, 2026

Mid-Morning
Assumption Weather - 2026-09-17 - Morning - Sunny
79°F 26°C
Sunny
Mid-Afternoon
Assumption Weather - 2026-09-17 - Afternoon - Overcast
86°F 30°C
Overcast
Early-Evening
Assumption Weather - 2026-09-17 - Evening - Overcast
75°F 24°C
Overcast
Quite warm around 86°F 30°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the NNW to the N at 12 mph 20 km/h. Gusts up to 22 mph 35 km/h.

Friday, September 18, 2026

Mid-Morning
Assumption Weather - 2026-09-18 - Morning - Overcast
60°F 15°C
Overcast
Mid-Afternoon
Assumption Weather - 2026-09-18 - Afternoon - Cloudy
72°F 22°C
Cloudy
Early-Evening
Assumption Weather - 2026-09-18 - Evening - Sunny
63°F 17°C
Sunny
Mild temperatures up to 72°F 22°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds swinging from the N to the NNE at 12 mph 19 km/h. Gusts up to 22 mph 36 km/h.

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Weather by the Numbers

Sat, 5th
Assumption IL Weather - Saturday, Sep 5, 2026 - Partly Cloudy
Hi: 101°F 38°C
Lo: 76°F 24°C
Sunrise 06:28 AM
Sunset 07:21 PM
Wind NNW 7 mph12 km/h
Dew Point 62°F16°C
uv Index 7
Barometric Pressure 29.88 in1012 mb
POP 3% *
Humidity 31%
Sun, 6th
Assumption IL Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 87°F 30°C
Lo: 65°F 18°C
Sunrise 06:29 AM
Sunset 07:19 PM
Wind ENE 13 mph21 km/h
Dew Point 55°F13°C
uv Index 7
Barometric Pressure 30.03 in1017 mb
POP 1% *
Humidity 37%
Mon, 7th
Assumption IL Weather - Monday, Sep 7, 2026 - Partly Cloudy
Hi: 88°F 31°C
Lo: 61°F 16°C
Sunrise 06:30 AM
Sunset 07:17 PM
Wind E 10 mph16 km/h
Dew Point 49°F10°C
uv Index 7
Barometric Pressure 30.09 in1019 mb
POP 5% *
Humidity 32%
Tue, 8th
Assumption IL Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 98°F 37°C
Lo: 63°F 17°C
Sunrise 06:30 AM
Sunset 07:16 PM
Wind SSW 10 mph16 km/h
Dew Point 54°F12°C
uv Index 7
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 28%
Wed, 9th
Assumption IL Weather - Wednesday, Sep 9, 2026 - Patchy Rain Nearby
Hi: 99°F 37°C
Lo: 73°F 23°C
Sunrise 06:31 AM
Sunset 07:14 PM
Wind W 13 mph21 km/h
Dew Point 58°F14°C
uv Index 8
Barometric Pressure 30.03 in1017 mb
POP 7% *
Humidity 27%
Thu, 10th
Assumption IL Weather - Thursday, Sep 10, 2026 - Overcast
Hi: 86°F 30°C
Lo: 69°F 20°C
Sunrise 06:32 AM
Sunset 07:13 PM
Wind NNE 4 mph7 km/h
Dew Point 46°F8°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 9% *
Humidity 30%
Fri, 11th
Assumption IL Weather - Friday, Sep 11, 2026 - Overcast
Hi: 90°F 32°C
Lo: 62°F 17°C
Sunrise 06:33 AM
Sunset 07:11 PM
Wind SE 8 mph13 km/h
Dew Point 50°F10°C
uv Index 6
Barometric Pressure 30.06 in1018 mb
POP 9% *
Humidity 33%
Sat, 12th
Assumption IL Weather - Saturday, Sep 12, 2026 - Light Rain Shower
Hi: 91°F 33°C
Lo: 67°F 19°C
Sunrise 06:34 AM
Sunset 07:09 PM
Wind SSE 11 mph17 km/h
Dew Point 57°F14°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 36% *
Humidity 54%
Sun, 13th
Assumption IL Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 99°F 37°C
Lo: 76°F 24°C
Sunrise 06:35 AM
Sunset 07:08 PM
Wind SSW 12 mph19 km/h
Dew Point 62°F16°C
uv Index 9
Barometric Pressure 30 in1016 mb
POP 0% *
Humidity 33%
Mon, 14th
Assumption IL Weather - Monday, Sep 14, 2026 - Sunny
Hi: 95°F 35°C
Lo: 73°F 23°C
Sunrise 06:36 AM
Sunset 07:06 PM
Wind SSW 13 mph21 km/h
Dew Point 67°F19°C
uv Index 8
Barometric Pressure 30.12 in1020 mb
POP 1% *
Humidity 47%
Tue, 15th
Assumption IL Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 95°F 35°C
Lo: 73°F 23°C
Sunrise 06:37 AM
Sunset 07:04 PM
Wind S 13 mph21 km/h
Dew Point 47°F9°C
uv Index 8
Barometric Pressure 30.15 in1021 mb
POP 0% *
Humidity 22%
Wed, 16th
Assumption IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 97°F 36°C
Lo: 74°F 23°C
Sunrise 06:38 AM
Sunset 07:03 PM
Wind SSW 10 mph16 km/h
Dew Point 56°F13°C
uv Index 8
Barometric Pressure 30.09 in1019 mb
POP 0% *
Humidity 30%
Thu, 17th
Assumption IL Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 88°F 31°C
Lo: 65°F 18°C
Sunrise 06:39 AM
Sunset 07:01 PM
Wind NNW 12 mph20 km/h
Dew Point 62°F17°C
uv Index 8
Barometric Pressure 30.12 in1020 mb
POP 6% *
Humidity 46%
Fri, 18th
Assumption IL Weather - Friday, Sep 18, 2026 - Overcast
Hi: 72°F 22°C
Lo: 54°F 12°C
Sunrise 06:40 AM
Sunset 06:59 PM
Wind N 14 mph23 km/h
Dew Point 32°F-0°C
uv Index 4
Barometric Pressure 30.36 in1028 mb
POP 8% *
Humidity 27%
* POP = Probability of Precipitation. Data for 12:00 PM.