Weather forecast for tomorrowArlington Heights, IL
Weather forecast for tomorrow
Monday Oct 19, 2026
- 68°F
- 43°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphSSW 203°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:09 am CDT
- Sunset: 6:04 pm CDT
- details ▼
Tomorrow, on Monday, sunny intervals will be long-lasting, with few disruptions.
The temperature is predicted to vary between a maximum of an agreeable 68°F and a minimum of a frosty 42.8°F.
Temperatures are higher than average, more in line with September's norm of 73.2°F than with October's 60.1°F.
Sunrise will be at 7:09 am and sunset at 6:04 pm; tomorrow's daylight will last for 10h and 55min.
The temperature is predicted to vary between a maximum of an agreeable 68°F and a minimum of a frosty 42.8°F.
Temperatures are higher than average, more in line with September's norm of 73.2°F than with October's 60.1°F.
Sunrise will be at 7:09 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 41°C.
Coldest hour: 6 am 41°C.
Chance of precipitation
Highest chance: 6 am 5%.
Hourly weather forecast
- 12 am
- 48°F
- Feels like:46°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 5mphSSW 204°
- Humidity: 68%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 46°F
- Feels like:45°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphSSW 212°
- Humidity: 73%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 43°F
- Feels like:43°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphSW 215°
- Humidity: 79%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:41°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphSSW 209°
- Humidity: 84%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:09 am
- 8 am
- 45°F
- Feels like:45°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphSW 216°
- Humidity: 81%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 55°F
- Feels like:54°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphSW 217°
- Humidity: 59%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSW 214°
- Humidity: 44%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 66°F
- Feels like:66°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSSW 203°
- Humidity: 40%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 66°F
- Feels like:66°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphS 191°
- Humidity: 41%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:61°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphSSE 159°
- Humidity: 53%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:04 pm
- 8 pm
- 55°F
- Feels like:55°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 1mphSE 129°
- Humidity: 66%
- Pressure: 30.33"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 10 pm
- 52°F
- Feels like:52°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 1mphE 99°
- Humidity: 78%
- Pressure: 30.36"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
Tomorrow, on Monday, primarily dry and sunny and occasionally gloomy weather is forecasted.
The temperature will vary between a minimum of 41°F and a maximum of 66.2°F. The warmest part of the day will be from 1 pm to 4 pm.
The highest temperature is more in line with September's average maximum of 73.2°F than October's usual of 60.1°F. The temperature low is forecasted to be in line with the usual October value of 45.7°F.
The temperature will vary between a minimum of 41°F and a maximum of 66.2°F. The warmest part of the day will be from 1 pm to 4 pm.
The highest temperature is more in line with September's average maximum of 73.2°F than October's usual of 60.1°F. The temperature low is forecasted to be in line with the usual October value of 45.7°F.
Updated: Oct 18, 2026 @ 05:40:27 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Monday, dry and sunny weather is expected throughout the day.
Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 42.8°F.
The maximum temperature will be slightly warmer than the average highest temperature of 60.1°F in October. The lowest temperature will be in line with the average low of 45.7°F.
The maximum temperature will be slightly warmer than the average highest temperature of 60.1°F in October. The lowest temperature will be in line with the average low of 45.7°F.
On Monday, in Arlington Heights, sunrise will be at 7:09 am and sunset at 6:04 pm (CDT).
In Arlington Heights, the length of the day tomorrow will be 10h and 55min.
