Weather forecast for tomorrowCrystal Lake, IA
Weather forecast for tomorrow
Monday Oct 19, 2026
- 66°F
- 41°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 9mphS 170°
- Humidity: 60%
- UV index: 4
- Sunrise: 7:34 am CDT
- Sunset: 6:26 pm CDT
- details ▼
On Monday, October 19, changing cloud patterns will allow for periods of sunshine.
The highest temperature will be an enjoyable 66.2°F, while the lowest expected temperature is a wintry 41°F.
With a forecast of 66.2°F, conditions deviate from October's average and instead resemble September's climate trend.
Sunrise will be at 7:34 am and sunset at 6:26 pm; tomorrow's daylight will last for 10h and 52min.
The highest temperature will be an enjoyable 66.2°F, while the lowest expected temperature is a wintry 41°F.
With a forecast of 66.2°F, conditions deviate from October's average and instead resemble September's climate trend.
Sunrise will be at 7:34 am and sunset at 6:26 pm; tomorrow's daylight will last for 10h and 52min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 39°C.
Coldest hour: 6 am 39°C.
Chance of precipitation
Highest chance: 6 am 8%.
Hourly weather forecast
- 12 am
- 46°F
- Feels like:43°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphSSW 192°
- Humidity: 70%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 45°F
- Feels like:41°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 5mphS 189°
- Humidity: 79%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 41°F
- Feels like:37°F
Mostly Clear
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 5mphS 184°
- Humidity: 88%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 39°F
- Feels like:37°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphS 180°
- Humidity: 93%
- Pressure: 30.27"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
Sunrise: 7:34 am
- 8 am
- 43°F
- Feels like:41°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 3mphS 178°
- Humidity: 91%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:50°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphS 178°
- Humidity: 75%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 59°F
- Feels like:59°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphS 172°
- Humidity: 54%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 64°F
- Feels like:64°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphSSE 167°
- Humidity: 44%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSSE 165°
- Humidity: 40%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:61°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 5mphSSE 149°
- Humidity: 46%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:26 pm
- 8 pm
- 54°F
- Feels like:52°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphSE 126°
- Humidity: 66%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 48°F
- Feels like:48°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 4mphSE 133°
- Humidity: 74%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, a combination of sun-filled and cloud-filled weather is forecasted.
The temperature will vary between a minimum of 39.2°F and a maximum of 66.2°F. The warmest part of the day is expected around 3 pm.
The highest temperature is more in line with September's average maximum of 72.1°F than October's usual of 56.7°F. The lowest temperature is resembling October's typical minimum of 42.3°F.
The temperature will vary between a minimum of 39.2°F and a maximum of 66.2°F. The warmest part of the day is expected around 3 pm.
The highest temperature is more in line with September's average maximum of 72.1°F than October's usual of 56.7°F. The lowest temperature is resembling October's typical minimum of 42.3°F.
Updated: Oct 18, 2026 @ 10:00:44 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
Tomorrow, moments of sunshine will break through the patchy clouds.
Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 41°F.
The maximum temperature will be uncommonly higher than the average highest temperature of 56.7°F in October. The lowest temperature will be in line with the average low of 42.3°F.
The maximum temperature will be uncommonly higher than the average highest temperature of 56.7°F in October. The lowest temperature will be in line with the average low of 42.3°F.
On Monday, in Crystal Lake, sunrise will be at 7:34 am and sunset at 6:26 pm (CDT).
In Crystal Lake, tomorrow, there will be 10h and 52min of daylight.
