St. Clair Park, IL 14 Day Weather

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St. Clair Park IL Weather - Partly Cloudy - 67°F
Partly Cloudy
67°F
Updated 11:23 am
Feels Like 62°F
Humidity 63%
Wind SE 8 mph
Barometer  30.16 in
Dew Point 54°F
St. Clair Park IL Weather - Partly Cloudy - 19°C
Partly Cloudy
19°C
Updated 11:23 am
Feels Like 17°C
Humidity 63%
Wind SE 13 km/h
Barometer  102.1 kPa
Dew Point 12°C
St. Clair Park, IL Weather and Current Conditionsst. clair park il weather forecast

St. Clair Park, IL Weather Forecast

St. Clair Park Illinois WeatherSt. Clair Park, Illinois Weather Weather Forecast
14 day API St. Clair Park weather forecast. Note. Our 7-day St. Clair Park weather forecast is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
St. Clair Park, IL Weather Forecast Dated: 1123 AM Sat Sep 26 2026
Expect a mild 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 26, 2026

Mid-Morning
St. Clair Park Weather - 2026-09-26 - Morning - Overcast
63°F 17°C
Overcast
Mid-Afternoon
St. Clair Park Weather - 2026-09-26 - Afternoon - Cloudy
72°F 22°C
Cloudy
Early-Evening
St. Clair Park Weather - 2026-09-26 - Evening - Scattered Showers
66°F 19°C
Scattered Showers
Pleasant near 72°F 22°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.

Sunday, September 27, 2026

Mid-Morning
St. Clair Park Weather - 2026-09-27 - Morning - Overcast
64°F 18°C
Overcast
Mid-Afternoon
St. Clair Park Weather - 2026-09-27 - Afternoon - Sunny
80°F 27°C
Sunny
Early-Evening
St. Clair Park Weather - 2026-09-27 - Evening - Sunny
72°F 23°C
Sunny
Balmy with temperatures reaching 80°F 27°C, overcast in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure.

Monday, September 28, 2026

Mid-Morning
St. Clair Park Weather - 2026-09-28 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
St. Clair Park Weather - 2026-09-28 - Afternoon - Sunny
81°F 27°C
Sunny
Early-Evening
St. Clair Park Weather - 2026-09-28 - Evening - Overcast
71°F 22°C
Overcast
Quite warm around 81°F 27°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling.

Tuesday, September 29, 2026

Mid-Morning
St. Clair Park Weather - 2026-09-29 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
St. Clair Park Weather - 2026-09-29 - Afternoon - Cloudy
87°F 30°C
Cloudy
Early-Evening
St. Clair Park Weather - 2026-09-29 - Evening - Overcast
80°F 27°C
Overcast
Warm temperatures up to 87°F 30°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds out of the S at 10 mph 16 km/h.

Wednesday, September 30, 2026

Mid-Morning
St. Clair Park Weather - 2026-09-30 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
St. Clair Park Weather - 2026-09-30 - Afternoon - Scattered Showers
85°F 30°C
Scattered Showers
Early-Evening
St. Clair Park Weather - 2026-09-30 - Evening - Partly Cloudy
85°F 29°C
Partly Cloudy
Very warm with a high of 85°F 30°C, scattered downpours possible, with lower humidity and steady pressure. Winds building from SSE at 3 mph 5 km/h to SSE at 12 mph 19 km/h. Gusts up to 27 mph 44 km/h.

Thursday, October 1, 2026

Mid-Morning
St. Clair Park Weather - 2026-10-01 - Morning - Overcast
75°F 24°C
Overcast
Mid-Afternoon
St. Clair Park Weather - 2026-10-01 - Afternoon - Light Showers
89°F 32°C
Light Showers
Early-Evening
St. Clair Park Weather - 2026-10-01 - Evening - Overcast
84°F 29°C
Overcast
Warm and summery near 89°F 32°C, dry early, with showers developing in the afternoon, with steady humidity and steady pressure. Winds moving from the S to the SW at 13 mph 20 km/h. Gusts up to 21 mph 34 km/h.

Friday, October 2, 2026

Mid-Morning
St. Clair Park Weather - 2026-10-02 - Morning - Partly Cloudy
76°F 25°C
Partly Cloudy
Mid-Afternoon
St. Clair Park Weather - 2026-10-02 - Afternoon - Sunny
82°F 28°C
Sunny
Early-Evening
St. Clair Park Weather - 2026-10-02 - Evening - Cloudy
75°F 24°C
Cloudy
Balmy with temperatures reaching 82°F 28°C, partly cloudy in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds swinging from the SW to the NW at 8 mph 13 km/h.

Saturday, October 3, 2026

Mid-Morning
St. Clair Park Weather - 2026-10-03 - Morning - Overcast
71°F 22°C
Overcast
Mid-Afternoon
St. Clair Park Weather - 2026-10-03 - Afternoon - Scattered Showers
85°F 29°C
Scattered Showers
Early-Evening
St. Clair Park Weather - 2026-10-03 - Evening - Overcast
79°F 26°C
Overcast
Quite warm around 85°F 29°C, scattered downpours possible, with steady humidity and steady pressure. Winds shifting from the S to the SSW at 9 mph 15 km/h.

Sunday, October 4, 2026

Mid-Morning
St. Clair Park Weather - 2026-10-04 - Morning - Scattered Showers
56°F 13°C
Scattered Showers
Mid-Afternoon
St. Clair Park Weather - 2026-10-04 - Afternoon - Sunny
67°F 20°C
Sunny
Early-Evening
St. Clair Park Weather - 2026-10-04 - Evening - Sunny
61°F 17°C
Sunny
Refreshing around 67°F 20°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds turning from the NNW to the ESE at 11 mph 17 km/h. Gusts up to 20 mph 33 km/h.

Monday, October 5, 2026

Mid-Morning
St. Clair Park Weather - 2026-10-05 - Morning - Overcast
54°F 12°C
Overcast
Mid-Afternoon
St. Clair Park Weather - 2026-10-05 - Afternoon - Overcast
62°F 17°C
Overcast
Early-Evening
St. Clair Park Weather - 2026-10-05 - Evening - Overcast
55°F 13°C
Overcast
Mildly cool near 62°F 17°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds switching from the NNE to the SE at 13 mph 20 km/h. Gusts up to 20 mph 32 km/h.

Tuesday, October 6, 2026

Mid-Morning
St. Clair Park Weather - 2026-10-06 - Morning - Sunny
47°F 8°C
Sunny
Mid-Afternoon
St. Clair Park Weather - 2026-10-06 - Afternoon - Overcast
57°F 14°C
Overcast
Early-Evening
St. Clair Park Weather - 2026-10-06 - Evening - Overcast
51°F 11°C
Overcast
Chilly near 57°F 14°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds moving from the NNE to the N at 9 mph 14 km/h.

Wednesday, October 7, 2026

Mid-Morning
St. Clair Park Weather - 2026-10-07 - Morning - Sunny
43°F 6°C
Sunny
Mid-Afternoon
St. Clair Park Weather - 2026-10-07 - Afternoon - Sunny
54°F 12°C
Sunny
Early-Evening
St. Clair Park Weather - 2026-10-07 - Evening - Sunny
46°F 8°C
Sunny
Crisp with a high near 54°F 12°C, sunny throughout the day, with lower humidity and steady pressure. Winds swinging from the N to the NNE at 9 mph 14 km/h.

Thursday, October 8, 2026

Mid-Morning
St. Clair Park Weather - 2026-10-08 - Morning - Sunny
42°F 5°C
Sunny
Mid-Afternoon
St. Clair Park Weather - 2026-10-08 - Afternoon - Sunny
56°F 13°C
Sunny
Early-Evening
St. Clair Park Weather - 2026-10-08 - Evening - Sunny
51°F 10°C
Sunny
Brisk around 56°F 13°C, sunny through the afternoon, turning overcast this evening, with lower humidity and barometric pressure falling.

Friday, October 9, 2026

Mid-Morning
St. Clair Park Weather - 2026-10-09 - Morning - Sunny
49°F 10°C
Sunny
Mid-Afternoon
St. Clair Park Weather - 2026-10-09 - Afternoon - Partly Cloudy
65°F 18°C
Partly Cloudy
Early-Evening
St. Clair Park Weather - 2026-10-09 - Evening - Overcast
58°F 15°C
Overcast
Mildly cool near 65°F 18°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.

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Weather by the Numbers

Sat, 26th
St. Clair Park IL Weather - Saturday, Sep 26, 2026 - Overcast
Hi: 73°F 23°C
Lo: 58°F 15°C
Sunrise 06:51 AM
Sunset 06:50 PM
Wind ESE 7 mph11 km/h
Dew Point 37°F3°C
uv Index 4
Barometric Pressure 30.12 in1020 mb
POP 9% *
Humidity 29%
Sun, 27th
St. Clair Park IL Weather - Sunday, Sep 27, 2026 - Cloudy
Hi: 81°F 27°C
Lo: 61°F 16°C
Sunrise 06:52 AM
Sunset 06:49 PM
Wind E 5 mph8 km/h
Dew Point 40°F4°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 7% *
Humidity 29%
Mon, 28th
St. Clair Park IL Weather - Monday, Sep 28, 2026 - Sunny
Hi: 82°F 28°C
Lo: 59°F 15°C
Sunrise 06:53 AM
Sunset 06:47 PM
Wind E 7 mph11 km/h
Dew Point 41°F5°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 28%
Tue, 29th
St. Clair Park IL Weather - Tuesday, Sep 29, 2026 - Overcast
Hi: 87°F 31°C
Lo: 61°F 16°C
Sunrise 06:54 AM
Sunset 06:46 PM
Wind S 9 mph14 km/h
Dew Point 39°F4°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 9% *
Humidity 22%
Wed, 30th
St. Clair Park IL Weather - Wednesday, Sep 30, 2026 - Overcast
Hi: 90°F 32°C
Lo: 68°F 20°C
Sunrise 06:55 AM
Sunset 06:44 PM
Wind SE 8 mph13 km/h
Dew Point 59°F15°C
uv Index 5
Barometric Pressure 29.85 in1011 mb
POP 16% *
Humidity 64%
Thu, 1st
St. Clair Park IL Weather - Thursday, Oct 1, 2026 - Patchy Rain Nearby
Hi: 90°F 32°C
Lo: 74°F 24°C
Sunrise 06:56 AM
Sunset 06:42 PM
Wind SSW 17 mph27 km/h
Dew Point 63°F17°C
uv Index 6
Barometric Pressure 29.83 in1010 mb
POP 18% *
Humidity 48%
Fri, 2nd
St. Clair Park IL Weather - Friday, Oct 2, 2026 - Sunny
Hi: 85°F 29°C
Lo: 70°F 21°C
Sunrise 06:57 AM
Sunset 06:41 PM
Wind WSW 16 mph26 km/h
Dew Point 62°F17°C
uv Index 7
Barometric Pressure 29.85 in1011 mb
POP 2% *
Humidity 50%
Sat, 3rd
St. Clair Park IL Weather - Saturday, Oct 3, 2026 - Overcast
Hi: 86°F 30°C
Lo: 67°F 19°C
Sunrise 06:58 AM
Sunset 06:39 PM
Wind S 8 mph13 km/h
Dew Point 64°F18°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 14% *
Humidity 60%
Sun, 4th
St. Clair Park IL Weather - Sunday, Oct 4, 2026 - Sunny
Hi: 71°F 22°C
Lo: 55°F 13°C
Sunrise 06:59 AM
Sunset 06:38 PM
Wind NNW 15 mph24 km/h
Dew Point 41°F5°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 2% *
Humidity 46%
Mon, 5th
St. Clair Park IL Weather - Monday, Oct 5, 2026 - Overcast
Hi: 63°F 17°C
Lo: 48°F 9°C
Sunrise 07:00 AM
Sunset 06:36 PM
Wind N 12 mph19 km/h
Dew Point 35°F2°C
uv Index 4
Barometric Pressure 30.39 in1029 mb
POP 10% *
Humidity 39%
Tue, 6th
St. Clair Park IL Weather - Tuesday, Oct 6, 2026 - Overcast
Hi: 58°F 14°C
Lo: 41°F 5°C
Sunrise 07:00 AM
Sunset 06:35 PM
Wind NNE 8 mph13 km/h
Dew Point 23°F-5°C
uv Index 3
Barometric Pressure 30.45 in1031 mb
POP 8% *
Humidity 29%
Wed, 7th
St. Clair Park IL Weather - Wednesday, Oct 7, 2026 - Sunny
Hi: 54°F 12°C
Lo: 37°F 3°C
Sunrise 07:01 AM
Sunset 06:33 PM
Wind ESE 10 mph17 km/h
Dew Point 22°F-6°C
uv Index 4
Barometric Pressure 30.47 in1032 mb
POP 1% *
Humidity 33%
Thu, 8th
St. Clair Park IL Weather - Thursday, Oct 8, 2026 - Sunny
Hi: 57°F 14°C
Lo: 34°F 1°C
Sunrise 07:02 AM
Sunset 06:32 PM
Wind E 4 mph6 km/h
Dew Point 23°F-5°C
uv Index 4
Barometric Pressure 30.45 in1031 mb
POP 1% *
Humidity 32%
Fri, 9th
St. Clair Park IL Weather - Friday, Oct 9, 2026 - Sunny
Hi: 65°F 18°C
Lo: 41°F 5°C
Sunrise 07:03 AM
Sunset 06:30 PM
Wind SW 7 mph12 km/h
Dew Point 21°F-6°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 3% *
Humidity 22%
* POP = Probability of Precipitation. Data for 12:00 PM.