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Summit Argo IL Weather - Partly Cloudy - 89°F
Partly Cloudy
89°F
Updated 3:48 pm
Feels Like 107°F
Humidity 51%
Wind S 6 mph
Barometer  29.92 in
Dew Point 69°F
Summit Argo IL Weather - Partly Cloudy - 32°C
Partly Cloudy
32°C
Updated 3:48 pm
Feels Like 42°C
Humidity 51%
Wind S 10 km/h
Barometer  101.3 kPa
Dew Point 21°C
Summit Argo, IL Weather and Current Conditionssummit argo il weather forecast

Summit Argo, IL Weather Forecast

Summit Argo Illinois WeatherSummit Argo, Illinois Weather Weather Forecast
14 day API forecast for Summit Argo, Illinois. Note. The 7-day weather forecast for Summit Argo, IL is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Summit Argo, IL Weather Forecast Dated: 348 PM Thu Sep 03 2026
Expect a very warm period with plenty of sunshine and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.

Thursday, September 3, 2026

Mid-Morning
Summit Argo Weather - 2026-09-03 - Morning - Sunny
84°F 29°C
Sunny
Mid-Afternoon
Summit Argo Weather - 2026-09-03 - Afternoon - Sunny
98°F 37°C
Sunny
Early-Evening
Summit Argo Weather - 2026-09-03 - Evening - Sunny
90°F 32°C
Sunny
Sizzling hot near 98°F 37°C with a heat index reaching 108°F 42°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the WSW to the S at 6 mph 9 km/h.

Friday, September 4, 2026

Mid-Morning
Summit Argo Weather - 2026-09-04 - Morning - Sunny
77°F 25°C
Sunny
Mid-Afternoon
Summit Argo Weather - 2026-09-04 - Afternoon - Sunny
90°F 32°C
Sunny
Early-Evening
Summit Argo Weather - 2026-09-04 - Evening - Nearby Thunderstorms
84°F 29°C
Nearby Thunderstorms
Hot and sweltering around 90°F 32°C (heat index 96°F 35°C), locally heavy thunderstorms at times, with steady humidity and steady pressure. Winds switching from the E to the ENE at 6 mph 9 km/h.

Saturday, September 5, 2026

Mid-Morning
Summit Argo Weather - 2026-09-05 - Morning - Scattered Showers
74°F 23°C
Scattered Showers
Mid-Afternoon
Summit Argo Weather - 2026-09-05 - Afternoon - Sunny
87°F 30°C
Sunny
Early-Evening
Summit Argo Weather - 2026-09-05 - Evening - Sunny
75°F 24°C
Sunny
Very warm near 87°F 30°C, though humidity makes it feel like 91°F 33°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds NNE at 9 mph 14 km/h.

Sunday, September 6, 2026

Mid-Morning
Summit Argo Weather - 2026-09-06 - Morning - Sunny
72°F 22°C
Sunny
Mid-Afternoon
Summit Argo Weather - 2026-09-06 - Afternoon - Sunny
79°F 26°C
Sunny
Early-Evening
Summit Argo Weather - 2026-09-06 - Evening - Sunny
71°F 22°C
Sunny
Mild temperatures up to 79°F 26°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the E to the ENE at 7 mph 11 km/h.

Monday, September 7, 2026

Mid-Morning
Summit Argo Weather - 2026-09-07 - Morning - Cloudy
68°F 20°C
Cloudy
Mid-Afternoon
Summit Argo Weather - 2026-09-07 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Summit Argo Weather - 2026-09-07 - Evening - Sunny
73°F 23°C
Sunny
Mild with a high of 78°F 26°C, cloudy in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds blowing from the ENE at 9 mph 14 km/h.

Tuesday, September 8, 2026

Mid-Morning
Summit Argo Weather - 2026-09-08 - Morning - Overcast
65°F 18°C
Overcast
Mid-Afternoon
Summit Argo Weather - 2026-09-08 - Afternoon - Overcast
80°F 27°C
Overcast
Early-Evening
Summit Argo Weather - 2026-09-08 - Evening - Sunny
79°F 26°C
Sunny
Warm and summery near 80°F 27°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds turning from the SSE to the S at 11 mph 16 km/h. Gusts up to 27 mph 43 km/h.

Wednesday, September 9, 2026

Mid-Morning
Summit Argo Weather - 2026-09-09 - Morning - Scattered Showers
81°F 27°C
Scattered Showers
Mid-Afternoon
Summit Argo Weather - 2026-09-09 - Afternoon - Scattered Showers
88°F 31°C
Scattered Showers
Early-Evening
Summit Argo Weather - 2026-09-09 - Evening - Cloudy
81°F 28°C
Cloudy
Balmy with temperatures reaching 88°F 31°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the WSW to the NW at 6 mph 10 km/h.

Thursday, September 10, 2026

Mid-Morning
Summit Argo Weather - 2026-09-10 - Morning - Overcast
73°F 23°C
Overcast
Mid-Afternoon
Summit Argo Weather - 2026-09-10 - Afternoon - Scattered Showers
76°F 24°C
Scattered Showers
Early-Evening
Summit Argo Weather - 2026-09-10 - Evening - Overcast
76°F 25°C
Overcast
Enjoyable around 76°F 24°C, scattered downpours possible, with steady humidity and steady pressure.

Friday, September 11, 2026

Mid-Morning
Summit Argo Weather - 2026-09-11 - Morning - Partly Cloudy
70°F 21°C
Partly Cloudy
Mid-Afternoon
Summit Argo Weather - 2026-09-11 - Afternoon - Sunny
80°F 27°C
Sunny
Early-Evening
Summit Argo Weather - 2026-09-11 - Evening - Sunny
75°F 24°C
Sunny
Warm temperatures up to 80°F 27°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds moving from the E to the ESE at 10 mph 16 km/h.

Saturday, September 12, 2026

Mid-Morning
Summit Argo Weather - 2026-09-12 - Morning - Sunny
71°F 21°C
Sunny
Mid-Afternoon
Summit Argo Weather - 2026-09-12 - Afternoon - Sunny
88°F 31°C
Sunny
Early-Evening
Summit Argo Weather - 2026-09-12 - Evening - Sunny
85°F 29°C
Sunny
Warm and summery around 88°F 31°C (feels like 92°F 33°C), sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds S at 8 mph 13 km/h. Gusts up to 20 mph 33 km/h.

Sunday, September 13, 2026

Mid-Morning
Summit Argo Weather - 2026-09-13 - Morning - Partly Cloudy
80°F 27°C
Partly Cloudy
Mid-Afternoon
Summit Argo Weather - 2026-09-13 - Afternoon - Sunny
92°F 34°C
Sunny
Early-Evening
Summit Argo Weather - 2026-09-13 - Evening - Sunny
86°F 30°C
Sunny
Hot and sweltering around 92°F 34°C (heat index 96°F 36°C), sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds out of the WSW at 10 mph 16 km/h. Gusts up to 22 mph 35 km/h.

Monday, September 14, 2026

Mid-Morning
Summit Argo Weather - 2026-09-14 - Morning - Scattered Showers
75°F 24°C
Scattered Showers
Mid-Afternoon
Summit Argo Weather - 2026-09-14 - Afternoon - Overcast
83°F 29°C
Overcast
Early-Evening
Summit Argo Weather - 2026-09-14 - Evening - Scattered Showers
75°F 24°C
Scattered Showers
Very warm near 83°F 29°C, though humidity makes it feel like 88°F 31°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds blowing from the WSW at 11 mph 18 km/h.

Tuesday, September 15, 2026

Mid-Morning
Summit Argo Weather - 2026-09-15 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Summit Argo Weather - 2026-09-15 - Afternoon - Sunny
69°F 21°C
Sunny
Early-Evening
Summit Argo Weather - 2026-09-15 - Evening - Partly Cloudy
63°F 17°C
Partly Cloudy
Enjoyable around 69°F 21°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds switching from the W to the NW at 11 mph 17 km/h. Gusts up to 24 mph 39 km/h.

Wednesday, September 16, 2026

Mid-Morning
Summit Argo Weather - 2026-09-16 - Morning - Sunny
57°F 14°C
Sunny
Mid-Afternoon
Summit Argo Weather - 2026-09-16 - Afternoon - Sunny
65°F 18°C
Sunny
Early-Evening
Summit Argo Weather - 2026-09-16 - Evening - Overcast
62°F 17°C
Overcast
Mildly cool near 65°F 18°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds out of the NW at 8 mph 13 km/h.

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Weather by the Numbers

Thu, 3rd
Summit Argo IL Weather - Thursday, Sep 3, 2026 - Sunny
Hi: 101°F 38°C
Lo: 77°F 25°C
Sunrise 06:19 AM
Sunset 07:22 PM
Wind WSW 6 mph10 km/h
Dew Point 75°F24°C
uv Index 6
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 47%
Fri, 4th
Summit Argo IL Weather - Friday, Sep 4, 2026 - Sunny
Hi: 90°F 32°C
Lo: 77°F 25°C
Sunrise 06:20 AM
Sunset 07:20 PM
Wind SW 9 mph14 km/h
Dew Point 67°F20°C
uv Index 7
Barometric Pressure 29.88 in1012 mb
POP 2% *
Humidity 52%
Sat, 5th
Summit Argo IL Weather - Saturday, Sep 5, 2026 - Sunny
Hi: 87°F 31°C
Lo: 72°F 22°C
Sunrise 06:21 AM
Sunset 07:18 PM
Wind NNE 3 mph5 km/h
Dew Point 68°F20°C
uv Index 7
Barometric Pressure 29.94 in1014 mb
POP 3% *
Humidity 59%
Sun, 6th
Summit Argo IL Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 79°F 26°C
Lo: 67°F 19°C
Sunrise 06:22 AM
Sunset 07:16 PM
Wind ENE 9 mph14 km/h
Dew Point 56°F13°C
uv Index 7
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 47%
Mon, 7th
Summit Argo IL Weather - Monday, Sep 7, 2026 - Sunny
Hi: 78°F 26°C
Lo: 64°F 18°C
Sunrise 06:23 AM
Sunset 07:15 PM
Wind E 8 mph13 km/h
Dew Point 49°F10°C
uv Index 6
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 39%
Tue, 8th
Summit Argo IL Weather - Tuesday, Sep 8, 2026 - Overcast
Hi: 81°F 27°C
Lo: 63°F 17°C
Sunrise 06:24 AM
Sunset 07:13 PM
Wind SSE 8 mph13 km/h
Dew Point 58°F14°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 14% *
Humidity 58%
Wed, 9th
Summit Argo IL Weather - Wednesday, Sep 9, 2026 - Overcast
Hi: 88°F 31°C
Lo: 76°F 24°C
Sunrise 06:25 AM
Sunset 07:11 PM
Wind WNW 13 mph20 km/h
Dew Point 66°F19°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 10% *
Humidity 52%
Thu, 10th
Summit Argo IL Weather - Thursday, Sep 10, 2026 - Light Rain Shower
Hi: 77°F 25°C
Lo: 72°F 22°C
Sunrise 06:26 AM
Sunset 07:10 PM
Wind NW 2 mph4 km/h
Dew Point 65°F18°C
uv Index 5
Barometric Pressure 30 in1016 mb
POP 34% *
Humidity 75%
Fri, 11th
Summit Argo IL Weather - Friday, Sep 11, 2026 - Sunny
Hi: 81°F 27°C
Lo: 66°F 19°C
Sunrise 06:28 AM
Sunset 07:08 PM
Wind E 12 mph19 km/h
Dew Point 53°F12°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 2% *
Humidity 46%
Sat, 12th
Summit Argo IL Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 90°F 32°C
Lo: 65°F 18°C
Sunrise 06:29 AM
Sunset 07:06 PM
Wind SSE 9 mph14 km/h
Dew Point 62°F17°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 2% *
Humidity 53%
Sun, 13th
Summit Argo IL Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 93°F 34°C
Lo: 74°F 24°C
Sunrise 06:30 AM
Sunset 07:04 PM
Wind WSW 10 mph17 km/h
Dew Point 65°F18°C
uv Index 8
Barometric Pressure 29.88 in1012 mb
POP 1% *
Humidity 46%
Mon, 14th
Summit Argo IL Weather - Monday, Sep 14, 2026 - Overcast
Hi: 85°F 29°C
Lo: 66°F 19°C
Sunrise 06:31 AM
Sunset 07:03 PM
Wind SW 10 mph16 km/h
Dew Point 69°F21°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 17% *
Humidity 70%
Tue, 15th
Summit Argo IL Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 69°F 21°C
Lo: 58°F 14°C
Sunrise 06:32 AM
Sunset 07:01 PM
Wind W 15 mph24 km/h
Dew Point 45°F7°C
uv Index 6
Barometric Pressure 29.74 in1007 mb
POP 1% *
Humidity 44%
Wed, 16th
Summit Argo IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 65°F 18°C
Lo: 53°F 11°C
Sunrise 06:33 AM
Sunset 06:59 PM
Wind NW 9 mph14 km/h
Dew Point 44°F7°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 2% *
Humidity 51%
* POP = Probability of Precipitation. Data for 12:00 PM.