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Summit IL Weather - Mostly Clear - 68°F
Mostly Clear
68°F
Updated 9:06 pm
Feels Like 63°F
Humidity 50%
Wind S 10 mph
Barometer  30.09 in
Dew Point 49°F
Summit IL Weather - Mostly Clear - 20°C
Mostly Clear
20°C
Updated 9:06 pm
Feels Like 17°C
Humidity 50%
Wind S 16 km/h
Barometer  101.9 kPa
Dew Point 9°C
Summit, IL Weather and Current Conditionssummit il weather forecast

Summit, IL Weather Forecast

Summit Illinois WeatherSummit, Illinois Weather Weather Forecast
14 day API weather forecast for Summit, Illinois. Note: The 7-day weather forecast for Summit, 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.
Summit, IL Weather Forecast Dated: 906 PM Wed Oct 28 2026
Expect a cool pattern with more clouds than sun and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.

Wednesday, October 28, 2026

Mid-Morning
Summit Weather - 2026-10-28 - Morning - Sunny
60°F 16°C
Sunny
Mid-Afternoon
Summit Weather - 2026-10-28 - Afternoon - Sunny
75°F 24°C
Sunny
Early-Evening
Summit Weather - 2026-10-28 - Evening - Clear
70°F 21°C
Clear
Pleasant near 75°F 24°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds turning from the SSW to the S at 8 mph 12 km/h. Gusts up to 22 mph 35 km/h.

Thursday, October 29, 2026

Mid-Morning
Summit Weather - 2026-10-29 - Morning - Scattered Showers
64°F 18°C
Scattered Showers
Mid-Afternoon
Summit Weather - 2026-10-29 - Afternoon - Overcast
65°F 19°C
Overcast
Early-Evening
Summit Weather - 2026-10-29 - Evening - Clear
63°F 17°C
Clear
Mildly cool near 65°F 19°C, scattered downpours possible, with lower humidity and steady pressure. Winds switching from the WSW to the NNW at 5 mph 9 km/h.

Friday, October 30, 2026

Mid-Morning
Summit Weather - 2026-10-30 - Morning - Overcast
56°F 13°C
Overcast
Mid-Afternoon
Summit Weather - 2026-10-30 - Afternoon - Scattered Showers
56°F 14°C
Scattered Showers
Early-Evening
Summit Weather - 2026-10-30 - Evening - Overcast
55°F 13°C
Overcast
Chilly near 56°F 14°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the NE to the ENE at 7 mph 11 km/h.

Saturday, October 31, 2026

Mid-Morning
Summit Weather - 2026-10-31 - Morning - Overcast
54°F 12°C
Overcast
Mid-Afternoon
Summit Weather - 2026-10-31 - Afternoon - Overcast
65°F 18°C
Overcast
Early-Evening
Summit Weather - 2026-10-31 - Evening - Overcast
61°F 17°C
Overcast
Cool with a high near 65°F 18°C, overcast throughout the day, with lower humidity and steady pressure. Winds swinging from the E to the ESE at 5 mph 8 km/h.

Sunday, November 1, 2026

Mid-Morning
Summit Weather - 2026-11-01 - Morning - Overcast
58°F 14°C
Overcast
Mid-Afternoon
Summit Weather - 2026-11-01 - Afternoon - Cloudy
61°F 16°C
Cloudy
Early-Evening
Summit Weather - 2026-11-01 - Evening - Overcast
58°F 14°C
Overcast
Refreshing around 61°F 16°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure.

Monday, November 2, 2026

Mid-Morning
Summit Weather - 2026-11-02 - Morning - Scattered Showers
61°F 16°C
Scattered Showers
Mid-Afternoon
Summit Weather - 2026-11-02 - Afternoon - Scattered Showers
66°F 19°C
Scattered Showers
Early-Evening
Summit Weather - 2026-11-02 - Evening - Overcast
63°F 17°C
Overcast
Mildly cool near 66°F 19°C, locally heavy downpours at times, with lower humidity and barometric pressure falling.

Tuesday, November 3, 2026

Mid-Morning
Summit Weather - 2026-11-03 - Morning - Light Rain
62°F 17°C
Light Rain
Mid-Afternoon
Summit Weather - 2026-11-03 - Afternoon - Light Rain
63°F 17°C
Light Rain
Early-Evening
Summit Weather - 2026-11-03 - Evening - Light Rain
62°F 17°C
Light Rain
Comfortable at 63°F 17°C, rounds of showers expected off and on all day, with steady humidity and steady pressure. Winds blowing from the S at 6 mph 10 km/h. Gusts up to 24 mph 39 km/h.

Wednesday, November 4, 2026

Mid-Morning
Summit Weather - 2026-11-04 - Morning - Rain
59°F 15°C
Rain
Mid-Afternoon
Summit Weather - 2026-11-04 - Afternoon - Rain
57°F 14°C
Rain
Early-Evening
Summit Weather - 2026-11-04 - Evening - Rain
54°F 12°C
Rain
Crisp with a high near 57°F 14°C, persistent showers off and on through the day, with steady humidity and steady pressure.

Thursday, November 5, 2026

Mid-Morning
Summit Weather - 2026-11-05 - Morning - Drizzle
52°F 11°C
Drizzle
Mid-Afternoon
Summit Weather - 2026-11-05 - Afternoon - Scattered Showers
50°F 10°C
Scattered Showers
Early-Evening
Summit Weather - 2026-11-05 - Evening - Scattered Showers
49°F 10°C
Scattered Showers
Brisk around 50°F 10°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds NNW at 11 mph 17 km/h. Gusts up to 28 mph 45 km/h.

Friday, November 6, 2026

Mid-Morning
Summit Weather - 2026-11-06 - Morning - Light Showers
43°F 6°C
Light Showers
Mid-Afternoon
Summit Weather - 2026-11-06 - Afternoon - Scattered Showers
46°F 8°C
Scattered Showers
Early-Evening
Summit Weather - 2026-11-06 - Evening - Light Showers
44°F 7°C
Light Showers
Cool and brisk at 46°F 8°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds out of the NNW at 9 mph 15 km/h. Gusts up to 30 mph 49 km/h.

Saturday, November 7, 2026

Mid-Morning
Summit Weather - 2026-11-07 - Morning - Partly Cloudy
42°F 6°C
Partly Cloudy
Mid-Afternoon
Summit Weather - 2026-11-07 - Afternoon - Partly Cloudy
45°F 7°C
Partly Cloudy
Early-Evening
Summit Weather - 2026-11-07 - Evening - Partly Cloudy
43°F 6°C
Partly Cloudy
Chilly near 45°F 7°C, cloudy in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds moving from the NNW to the WNW at 5 mph 8 km/h. Gusts up to 22 mph 35 km/h.

Sunday, November 8, 2026

Mid-Morning
Summit Weather - 2026-11-08 - Morning - Scattered Showers
42°F 6°C
Scattered Showers
Mid-Afternoon
Summit Weather - 2026-11-08 - Afternoon - Drizzle
45°F 7°C
Drizzle
Early-Evening
Summit Weather - 2026-11-08 - Evening - Drizzle
44°F 7°C
Drizzle
Crisp with a high near 45°F 7°C, locally heavy downpours at times, with increasing humidity and steady pressure.

Monday, November 9, 2026

Mid-Morning
Summit Weather - 2026-11-09 - Morning - Cloudy
46°F 8°C
Cloudy
Mid-Afternoon
Summit Weather - 2026-11-09 - Afternoon - Partly Cloudy
48°F 9°C
Partly Cloudy
Early-Evening
Summit Weather - 2026-11-09 - Evening - Partly Cloudy
46°F 8°C
Partly Cloudy
Brisk around 48°F 9°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds WNW at 8 mph 12 km/h. Gusts up to 20 mph 32 km/h.

Tuesday, November 10, 2026

Mid-Morning
Summit Weather - 2026-11-10 - Morning - Cloudy
42°F 6°C
Cloudy
Mid-Afternoon
Summit Weather - 2026-11-10 - Afternoon - Scattered Showers
44°F 7°C
Scattered Showers
Early-Evening
Summit Weather - 2026-11-10 - Evening - Partly Cloudy
41°F 5°C
Partly Cloudy
Biting cold near 44°F 7°C, scattered downpours possible, with increasing humidity and steady pressure.

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Weather by the Numbers

Wed, 28th
Summit IL Weather - Wednesday, Oct 28, 2026 - Sunny
Hi: 75°F 24°C
Lo: 56°F 13°C
Sunrise 07:19 AM
Sunset 05:51 PM
Wind SSW 8 mph12 km/h
Dew Point 45°F7°C
uv Index 3
Barometric Pressure 30.18 in1022 mb
POP 1% *
Humidity 40%
Thu, 29th
Summit IL Weather - Thursday, Oct 29, 2026 - Light Rain Shower
Hi: 68°F 20°C
Lo: 57°F 14°C
Sunrise 07:20 AM
Sunset 05:49 PM
Wind W 8 mph12 km/h
Dew Point 55°F13°C
uv Index 2
Barometric Pressure 30.09 in1019 mb
POP 27% *
Humidity 65%
Fri, 30th
Summit IL Weather - Friday, Oct 30, 2026 - Overcast
Hi: 60°F 15°C
Lo: 50°F 10°C
Sunrise 07:21 AM
Sunset 05:48 PM
Wind ENE 7 mph11 km/h
Dew Point 43°F6°C
uv Index 3
Barometric Pressure 30.36 in1028 mb
POP 14% *
Humidity 60%
Sat, 31st
Summit IL Weather - Saturday, Oct 31, 2026 - Overcast
Hi: 65°F 18°C
Lo: 53°F 11°C
Sunrise 07:22 AM
Sunset 05:47 PM
Wind ESE 7 mph11 km/h
Dew Point 43°F6°C
uv Index 1
Barometric Pressure 30.3 in1026 mb
POP 13% *
Humidity 53%
Sun, 1st
Summit IL Weather - Sunday, Nov 1, 2026 - Overcast
Hi: 61°F 16°C
Lo: 54°F 12°C
Sunrise 07:24 AM
Sunset 05:45 PM
Wind E 5 mph8 km/h
Dew Point 55°F13°C
uv Index 4
Barometric Pressure 30.27 in1025 mb
POP 25% *
Humidity 82%
Mon, 2nd
Summit IL Weather - Monday, Nov 2, 2026 - Light Rain
Hi: 66°F 19°C
Lo: 56°F 13°C
Sunrise 06:24 AM
Sunset 04:44 PM
Wind S 5 mph9 km/h
Dew Point 59°F15°C
uv Index 4
Barometric Pressure 30.06 in1018 mb
POP 67% *
Humidity 88%
Tue, 3rd
Summit IL Weather - Tuesday, Nov 3, 2026 - Light Rain
Hi: 63°F 17°C
Lo: 61°F 16°C
Sunrise 06:26 AM
Sunset 04:43 PM
Wind S 8 mph12 km/h
Dew Point 60°F15°C
uv Index 4
Barometric Pressure 29.94 in1014 mb
POP 80% *
Humidity 91%
Wed, 4th
Summit IL Weather - Wednesday, Nov 4, 2026 - Moderate Rain
Hi: 61°F 16°C
Lo: 52°F 11°C
Sunrise 06:27 AM
Sunset 04:41 PM
Wind E 3 mph5 km/h
Dew Point 57°F14°C
uv Index 3
Barometric Pressure 29.8 in1009 mb
POP 90% *
Humidity 93%
Thu, 5th
Summit IL Weather - Thursday, Nov 5, 2026 - Light Drizzle
Hi: 52°F 11°C
Lo: 46°F 8°C
Sunrise 06:28 AM
Sunset 04:40 PM
Wind N 11 mph17 km/h
Dew Point 46°F8°C
uv Index 3
Barometric Pressure 29.68 in1005 mb
POP 60% *
Humidity 80%
Fri, 6th
Summit IL Weather - Friday, Nov 6, 2026 - Patchy Rain Nearby
Hi: 47°F 8°C
Lo: 41°F 5°C
Sunrise 06:29 AM
Sunset 04:39 PM
Wind N 9 mph15 km/h
Dew Point 32°F-0°C
uv Index 2
Barometric Pressure 29.85 in1011 mb
POP 9% *
Humidity 55%
Sat, 7th
Summit IL Weather - Saturday, Nov 7, 2026 - Partly Cloudy
Hi: 46°F 8°C
Lo: 41°F 5°C
Sunrise 06:31 AM
Sunset 04:38 PM
Wind NNW 9 mph15 km/h
Dew Point 31°F-0°C
uv Index 3
Barometric Pressure 30.09 in1019 mb
POP 8% *
Humidity 57%
Sun, 8th
Summit IL Weather - Sunday, Nov 8, 2026 - Patchy Light Drizzle
Hi: 45°F 7°C
Lo: 38°F 3°C
Sunrise 06:32 AM
Sunset 04:37 PM
Wind W 2 mph4 km/h
Dew Point 35°F2°C
uv Index 2
Barometric Pressure 30.15 in1021 mb
POP 28% *
Humidity 67%
Mon, 9th
Summit IL Weather - Monday, Nov 9, 2026 - Cloudy
Hi: 49°F 9°C
Lo: 43°F 6°C
Sunrise 06:33 AM
Sunset 04:36 PM
Wind WNW 8 mph13 km/h
Dew Point 38°F3°C
uv Index 2
Barometric Pressure 29.94 in1014 mb
POP 13% *
Humidity 67%
Tue, 10th
Summit IL Weather - Tuesday, Nov 10, 2026 - Overcast
Hi: 45°F 7°C
Lo: 38°F 4°C
Sunrise 06:34 AM
Sunset 04:35 PM
Wind NW 7 mph12 km/h
Dew Point 30°F-1°C
uv Index 2
Barometric Pressure 29.88 in1012 mb
POP 13% *
Humidity 54%
* POP = Probability of Precipitation. Data for 12:00 PM.