Sumpter, IL 14 Day Weather - WeatherWorld.com

Feedback E-mail the Weather

Quick Weather Clicks

Sumpter, IL Weather - 14-Day Weather Forecast

Current Conditions

Settings
Sumpter IL Weather - Clear - 66°F
Clear
66°F
Updated 9:04 pm
Feels Like 63°F
Humidity 56%
Wind N 6 mph
Barometer  30.12 in
Dew Point 50°F
Sumpter IL Weather - Clear - 19°C
Clear
19°C
Updated 9:04 pm
Feels Like 17°C
Humidity 56%
Wind N 10 km/h
Barometer  102 kPa
Dew Point 10°C
Sumpter, IL Weather and Current Conditionssumpter il weather forecast

Sumpter, IL Weather Forecast

Sumpter Illinois WeatherSumpter, Illinois Weather Weather Forecast
14 day API weather forecast for Sumpter, Illinois. Note: The 7-day weather forecast for Sumpter, 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.
Sumpter, IL Weather Forecast Dated: 904 PM Sun Sep 13 2026
Expect a very warm period 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.

Sunday, September 13, 2026

Mid-Morning
Sumpter Weather - 2026-09-13 - Morning - Partly Cloudy
75°F 24°C
Partly Cloudy
Mid-Afternoon
Sumpter Weather - 2026-09-13 - Afternoon - Overcast
86°F 30°C
Overcast
Early-Evening
Sumpter Weather - 2026-09-13 - Evening - Sunny
73°F 23°C
Sunny
Warm and summery near 86°F 30°C, partly cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds turning from the N to the NNE at 11 mph 17 km/h.

Monday, September 14, 2026

Mid-Morning
Sumpter Weather - 2026-09-14 - Morning - Cloudy
65°F 18°C
Cloudy
Mid-Afternoon
Sumpter Weather - 2026-09-14 - Afternoon - Sunny
84°F 29°C
Sunny
Early-Evening
Sumpter Weather - 2026-09-14 - Evening - Sunny
77°F 25°C
Sunny
Balmy with temperatures reaching 84°F 29°C, cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and barometric pressure falling. Winds switching from the E to the SSE at 11 mph 17 km/h. Gusts up to 21 mph 33 km/h.

Tuesday, September 15, 2026

Mid-Morning
Sumpter Weather - 2026-09-15 - Morning - Sunny
78°F 26°C
Sunny
Mid-Afternoon
Sumpter Weather - 2026-09-15 - Afternoon - Scattered Showers
98°F 37°C
Scattered Showers
Early-Evening
Sumpter Weather - 2026-09-15 - Evening - Light Showers
75°F 24°C
Light Showers
Very hot with a high of 98°F 37°C, feeling closer to 101°F 38°C in the humidity, locally heavy downpours at times, with increasing humidity and steady pressure. A stray shower or storm late in the day. Winds moving from the S to the WNW at 6 mph 10 km/h.

Wednesday, September 16, 2026

Mid-Morning
Sumpter Weather - 2026-09-16 - Morning - Light Showers
75°F 24°C
Light Showers
Mid-Afternoon
Sumpter Weather - 2026-09-16 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
Sumpter Weather - 2026-09-16 - Evening - Sunny
84°F 29°C
Sunny
Sizzling hot near 91°F 33°C with a heat index reaching 96°F 35°C, early showers breaking for a drier afternoon, with lower humidity and steady pressure.

Thursday, September 17, 2026

Mid-Morning
Sumpter Weather - 2026-09-17 - Morning - Cloudy
76°F 24°C
Cloudy
Mid-Afternoon
Sumpter Weather - 2026-09-17 - Afternoon - Cloudy
92°F 33°C
Cloudy
Early-Evening
Sumpter Weather - 2026-09-17 - Evening - Overcast
82°F 27°C
Overcast
Hot and sweltering around 92°F 33°C (heat index 95°F 35°C), cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds swinging from the N to the NNE at 9 mph 15 km/h.

Friday, September 18, 2026

Mid-Morning
Sumpter Weather - 2026-09-18 - Morning - Sunny
76°F 25°C
Sunny
Mid-Afternoon
Sumpter Weather - 2026-09-18 - Afternoon - Partly Cloudy
92°F 33°C
Partly Cloudy
Early-Evening
Sumpter Weather - 2026-09-18 - Evening - Partly Cloudy
83°F 29°C
Partly Cloudy
Very hot with a high of 92°F 33°C, feeling closer to 95°F 35°C in the humidity, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling. Winds shifting from the E to the ESE at 8 mph 12 km/h.

Saturday, September 19, 2026

Mid-Morning
Sumpter Weather - 2026-09-19 - Morning - Sunny
84°F 29°C
Sunny
Mid-Afternoon
Sumpter Weather - 2026-09-19 - Afternoon - Sunny
98°F 37°C
Sunny
Early-Evening
Sumpter Weather - 2026-09-19 - Evening - Sunny
91°F 33°C
Sunny
Hot and sweltering around 98°F 37°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds turning from the SW to the WSW at 8 mph 13 km/h.

Sunday, September 20, 2026

Mid-Morning
Sumpter Weather - 2026-09-20 - Morning - Partly Cloudy
82°F 28°C
Partly Cloudy
Mid-Afternoon
Sumpter Weather - 2026-09-20 - Afternoon - Sunny
95°F 35°C
Sunny
Early-Evening
Sumpter Weather - 2026-09-20 - Evening - Cloudy
83°F 28°C
Cloudy
Sizzling hot with 95°F 35°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds switching from the SSW to the S at 10 mph 16 km/h. Gusts up to 20 mph 32 km/h.

Monday, September 21, 2026

Mid-Morning
Sumpter Weather - 2026-09-21 - Morning - Scattered Showers
76°F 25°C
Scattered Showers
Mid-Afternoon
Sumpter Weather - 2026-09-21 - Afternoon - Scattered Showers
89°F 32°C
Scattered Showers
Early-Evening
Sumpter Weather - 2026-09-21 - Evening - Overcast
73°F 23°C
Overcast
Warm temperatures up to 89°F 32°C, locally heavy downpours at times, with increasing humidity and steady pressure. Winds moving from the S to the NW at 9 mph 15 km/h.

Tuesday, September 22, 2026

Mid-Morning
Sumpter Weather - 2026-09-22 - Morning - Light Fog
68°F 20°C
Light Fog
Mid-Afternoon
Sumpter Weather - 2026-09-22 - Afternoon - Sunny
78°F 25°C
Sunny
Early-Evening
Sumpter Weather - 2026-09-22 - Evening - Sunny
75°F 24°C
Sunny
Mild with a high of 78°F 25°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds swinging from the WNW to the W at 9 mph 14 km/h.

Wednesday, September 23, 2026

Mid-Morning
Sumpter Weather - 2026-09-23 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Sumpter Weather - 2026-09-23 - Afternoon - Sunny
78°F 25°C
Sunny
Early-Evening
Sumpter Weather - 2026-09-23 - Evening - Sunny
71°F 22°C
Sunny
Pleasant near 78°F 25°C, sunny throughout the day, with lower humidity and steady pressure. Winds shifting from the WNW to the W at 8 mph 13 km/h.

Thursday, September 24, 2026

Mid-Morning
Sumpter Weather - 2026-09-24 - Morning - Sunny
61°F 16°C
Sunny
Mid-Afternoon
Sumpter Weather - 2026-09-24 - Afternoon - Sunny
67°F 20°C
Sunny
Early-Evening
Sumpter Weather - 2026-09-24 - Evening - Overcast
61°F 16°C
Overcast
Cool with a high near 67°F 20°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds turning from the WNW to the NW at 12 mph 19 km/h.

Friday, September 25, 2026

Mid-Morning
Sumpter Weather - 2026-09-25 - Morning - Overcast
52°F 11°C
Overcast
Mid-Afternoon
Sumpter Weather - 2026-09-25 - Afternoon - Overcast
61°F 16°C
Overcast
Early-Evening
Sumpter Weather - 2026-09-25 - Evening - Scattered Showers
57°F 14°C
Scattered Showers
Refreshing around 61°F 16°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the WNW to the NW at 14 mph 23 km/h. Gusts up to 23 mph 37 km/h.

Saturday, September 26, 2026

Mid-Morning
Sumpter Weather - 2026-09-26 - Morning - Partly Cloudy
50°F 10°C
Partly Cloudy
Mid-Afternoon
Sumpter Weather - 2026-09-26 - Afternoon - Partly Cloudy
66°F 19°C
Partly Cloudy
Early-Evening
Sumpter Weather - 2026-09-26 - Evening - Overcast
59°F 15°C
Overcast
Mildly cool near 66°F 19°C, overcast in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds moving from the NW to the NNW at 12 mph 20 km/h. Gusts up to 25 mph 39 km/h.

Trending Headlines

Sumpter, IL Weather Radar Map

Use the map search tool if you want to place a location marker on the radar map...

Sumpter, IL 7 Day Weather

National Two Day Weather Forecast


E-mail the Sumpter Weather Forecast

Voice your opinion or tell us about page issues...

Weather by the Numbers

Sun, 13th
Sumpter IL Weather - Sunday, Sep 13, 2026 - Cloudy
Hi: 87°F 31°C
Lo: 65°F 19°C
Sunrise 06:32 AM
Sunset 07:05 PM
Wind NW 9 mph14 km/h
Dew Point 63°F17°C
uv Index 6
Barometric Pressure 30 in1016 mb
POP 8% *
Humidity 47%
Mon, 14th
Sumpter IL Weather - Monday, Sep 14, 2026 - Sunny
Hi: 84°F 29°C
Lo: 58°F 15°C
Sunrise 06:33 AM
Sunset 07:03 PM
Wind ESE 10 mph16 km/h
Dew Point 44°F7°C
uv Index 6
Barometric Pressure 30.18 in1022 mb
POP 1% *
Humidity 31%
Tue, 15th
Sumpter IL Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 99°F 37°C
Lo: 66°F 19°C
Sunrise 06:34 AM
Sunset 07:01 PM
Wind SSW 14 mph22 km/h
Dew Point 64°F18°C
uv Index 7
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 38%
Wed, 16th
Sumpter IL Weather - Wednesday, Sep 16, 2026 - Partly Cloudy
Hi: 91°F 33°C
Lo: 72°F 22°C
Sunrise 06:35 AM
Sunset 07:00 PM
Wind N 4 mph7 km/h
Dew Point 69°F21°C
uv Index 6
Barometric Pressure 30.24 in1024 mb
POP 6% *
Humidity 62%
Thu, 17th
Sumpter IL Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 92°F 33°C
Lo: 75°F 24°C
Sunrise 06:36 AM
Sunset 06:58 PM
Wind N 8 mph13 km/h
Dew Point 68°F20°C
uv Index 8
Barometric Pressure 30.21 in1023 mb
POP 3% *
Humidity 52%
Fri, 18th
Sumpter IL Weather - Friday, Sep 18, 2026 - Partly Cloudy
Hi: 93°F 34°C
Lo: 71°F 22°C
Sunrise 06:37 AM
Sunset 06:56 PM
Wind ESE 4 mph6 km/h
Dew Point 66°F19°C
uv Index 8
Barometric Pressure 30.09 in1019 mb
POP 4% *
Humidity 50%
Sat, 19th
Sumpter IL Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 99°F 37°C
Lo: 75°F 24°C
Sunrise 06:38 AM
Sunset 06:55 PM
Wind WSW 15 mph24 km/h
Dew Point 60°F16°C
uv Index 8
Barometric Pressure 29.85 in1011 mb
POP 1% *
Humidity 33%
Sun, 20th
Sumpter IL Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 95°F 35°C
Lo: 76°F 24°C
Sunrise 06:39 AM
Sunset 06:53 PM
Wind SW 10 mph16 km/h
Dew Point 62°F17°C
uv Index 8
Barometric Pressure 29.83 in1010 mb
POP 1% *
Humidity 38%
Mon, 21st
Sumpter IL Weather - Monday, Sep 21, 2026 - Patchy Rain Nearby
Hi: 89°F 32°C
Lo: 68°F 20°C
Sunrise 06:40 AM
Sunset 06:51 PM
Wind SSW 12 mph19 km/h
Dew Point 64°F18°C
uv Index 6
Barometric Pressure 29.8 in1009 mb
POP 8% *
Humidity 50%
Tue, 22nd
Sumpter IL Weather - Tuesday, Sep 22, 2026 - Sunny
Hi: 79°F 26°C
Lo: 66°F 19°C
Sunrise 06:41 AM
Sunset 06:50 PM
Wind W 11 mph17 km/h
Dew Point 56°F13°C
uv Index 6
Barometric Pressure 29.88 in1012 mb
POP 2% *
Humidity 51%
Wed, 23rd
Sumpter IL Weather - Wednesday, Sep 23, 2026 - Sunny
Hi: 79°F 26°C
Lo: 59°F 15°C
Sunrise 06:41 AM
Sunset 06:48 PM
Wind WNW 13 mph21 km/h
Dew Point 51°F11°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 48%
Thu, 24th
Sumpter IL Weather - Thursday, Sep 24, 2026 - Sunny
Hi: 69°F 20°C
Lo: 55°F 13°C
Sunrise 06:42 AM
Sunset 06:46 PM
Wind WNW 15 mph24 km/h
Dew Point 38°F3°C
uv Index 5
Barometric Pressure 29.88 in1012 mb
POP 1% *
Humidity 34%
Fri, 25th
Sumpter IL Weather - Friday, Sep 25, 2026 - Overcast
Hi: 62°F 17°C
Lo: 50°F 10°C
Sunrise 06:43 AM
Sunset 06:45 PM
Wind NW 13 mph21 km/h
Dew Point 40°F4°C
uv Index 3
Barometric Pressure 29.91 in1013 mb
POP 12% *
Humidity 51%
Sat, 26th
Sumpter IL Weather - Saturday, Sep 26, 2026 - Overcast
Hi: 66°F 19°C
Lo: 47°F 8°C
Sunrise 06:44 AM
Sunset 06:43 PM
Wind NW 13 mph21 km/h
Dew Point 47°F8°C
uv Index 4
Barometric Pressure 30 in1016 mb
POP 9% *
Humidity 62%
* POP = Probability of Precipitation. Data for 12:00 PM.