Weather forecast for tomorrowPort Barrington, IL

Weather forecast for tomorrow

Monday Oct 19, 2026

68°F
41°F

Mostly Sunny

Precip. probability: 6%
Precipitation: 0"
Wind: 4mphSSW 198°
Humidity: 57%
UV index: 4
Sunrise: 7:10 am CDT
Sunset: 6:04 pm CDT
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On Monday, October 19, mainly sunny skies with just a few high clouds are anticipated.
Substantial temperature fluctuations from a high of a pleasant 68°F to a low of a cold 41°F are expected.
Sunrise will be at 7:10 am and sunset at 6:04 pm; tomorrow's daylight will last for 10h and 55min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 39°C.

Chance of precipitation

Highest chance: 6 am 6%.

Hourly weather forecast

12 am

48°F
Feels like:
45°F

Clear

Precip. probability: 2%
Precipitation: 0"
Wind: 6mphSSW 207°
Humidity: 67%
Pressure: 30.36"Hg
Visibility: 10mi
UV index: 0
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2 am

45°F
Feels like:
43°F

Clear

Precip. probability: 3%
Precipitation: 0"
Wind: 4mphSSW 214°
Humidity: 75%
Pressure: 30.36"Hg
Visibility: 10mi
UV index: 0
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4 am

41°F
Feels like:
41°F

Clear

Precip. probability: 5%
Precipitation: 0"
Wind: 2mphSW 215°
Humidity: 83%
Pressure: 30.39"Hg
Visibility: 10mi
UV index: 0
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6 am

39°F
Feels like:
39°F

Clear

Precip. probability: 6%
Precipitation: 0"
Wind: 2mphSSW 207°
Humidity: 86%
Pressure: 30.39"Hg
Visibility: 10mi
UV index: 0
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Sunrise: 7:10 am

8 am

43°F
Feels like:
43°F

Sunny

Precip. probability: 6%
Precipitation: 0"
Wind: 2mphSSW 203°
Humidity: 87%
Pressure: 30.42"Hg
Visibility: 10mi
UV index: 0
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10 am

55°F
Feels like:
55°F

Sunny

Precip. probability: 2%
Precipitation: 0"
Wind: 4mphSSW 208°
Humidity: 62%
Pressure: 30.39"Hg
Visibility: 10mi
UV index: 2
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12 pm

63°F
Feels like:
63°F

Sunny

Precip. probability: 0%
Precipitation: 0"
Wind: 4mphSSW 208°
Humidity: 46%
Pressure: 30.36"Hg
Visibility: 10mi
UV index: 4
details ▼

2 pm

66°F
Feels like:
66°F

Sunny

Precip. probability: 0%
Precipitation: 0"
Wind: 4mphSSW 204°
Humidity: 42%
Pressure: 30.33"Hg
Visibility: 10mi
UV index: 3
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4 pm

66°F
Feels like:
66°F

Partly Cloudy

Precip. probability: 0%
Precipitation: 0"
Wind: 4mphS 191°
Humidity: 43%
Pressure: 30.33"Hg
Visibility: 10mi
UV index: 1
details ▼

6 pm

59°F
Feels like:
59°F

Partly Cloudy

Precip. probability: 1%
Precipitation: 0"
Wind: 2mphSSE 155°
Humidity: 59%
Pressure: 30.33"Hg
Visibility: 10mi
UV index: 0
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Sunset: 6:04 pm

8 pm

52°F
Feels like:
52°F

Partly Cloudy

Precip. probability: 3%
Precipitation: 0"
Wind: 1mphSE 135°
Humidity: 74%
Pressure: 30.33"Hg
Visibility: 10mi
UV index: 0
details ▼

10 pm

48°F
Feels like:
48°F

Partly Cloudy

Precip. probability: 6%
Precipitation: 0"
Wind: 1mphSE 126°
Humidity: 84%
Pressure: 30.36"Hg
Visibility: 9mi
UV index: 0
details ▼

Tomorrow, a combination of bright and cloudy weather is anticipated.
The temperature will vary between a minimum of 39.2°F and a maximum of 66.2°F. The warmest part of the day will be from 2 pm to 4 pm.

Updated: Oct 18, 2026 @ 14:00:36 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate