Weather forecast for tomorrowKeystone, IA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 39°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 17mphSSW 193°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:25 am CDT
- Sunset: 6:22 pm CDT
- details ▼
Tomorrow, on Sunday, October 18, expect consistent sunshine and open skies.
Day and night temperatures will contrast sharply, from a maximum of an enjoyable 66.2°F to a minimum of a cold 39.2°F.
The forecasted high for tomorrow is forecasted to be slightly warmer than the typical October maximum of 59.9°F.
Sunrise will be at 7:25 am and sunset at 6:22 pm; tomorrow's daylight will last for 10h and 58min.
Day and night temperatures will contrast sharply, from a maximum of an enjoyable 66.2°F to a minimum of a cold 39.2°F.
The forecasted high for tomorrow is forecasted to be slightly warmer than the typical October maximum of 59.9°F.
Sunrise will be at 7:25 am and sunset at 6:22 pm; tomorrow's daylight will last for 10h and 58min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest period: 3 am - 6 am 41°C.
Coldest period: 3 am - 6 am 41°C.
Chance of precipitation
Highest chance: 6 am 5%.
Hourly weather forecast
- 12 am
- 45°F
- Feels like:39°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 10mphSSW 193°
- Humidity: 71%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 43°F
- Feels like:36°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 10mphSSW 194°
- Humidity: 76%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphSSW 193°
- Humidity: 79%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:34°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 10mphSSW 192°
- Humidity: 83%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:25 am
- 8 am
- 41°F
- Feels like:36°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 11mphS 187°
- Humidity: 80%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 50°F
- Feels like:45°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 14mphSSW 193°
- Humidity: 63%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 59°F
- Feels like:55°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 16mphSSW 198°
- Humidity: 48%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 64°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 16mphSSW 196°
- Humidity: 41%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 64°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 15mphSSW 192°
- Humidity: 38%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:59°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphS 185°
- Humidity: 43%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:22 pm
- 8 pm
- 54°F
- Feels like:52°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 9mphS 180°
- Humidity: 62%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:48°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 7mphS 185°
- Humidity: 73%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, bright skies and dry conditions are anticipated.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 64.4°F. The feels-like temperature will vary between the lowest temperature of 33.8°F and the highest temperature of 62.6°F. The warmest part of the day will be from 2 pm to 5 pm.
The maximum temperature will be a couple of degrees higher than October's average high of 59.9°F. Tomorrow, the temperature is expected to be also relatively lower than October's normal minimum of 44.1°F.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 64.4°F. The feels-like temperature will vary between the lowest temperature of 33.8°F and the highest temperature of 62.6°F. The warmest part of the day will be from 2 pm to 5 pm.
The maximum temperature will be a couple of degrees higher than October's average high of 59.9°F. Tomorrow, the temperature is expected to be also relatively lower than October's normal minimum of 44.1°F.
Updated: Oct 17, 2026 @ 22:48:05 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 Sunday, the outlook remains bright and sunny.
Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 39.2°F.
The highest temperature will be relatively higher than the average maximum of 59.9°F in October. Tomorrow, the lowest temperature will be also moderately lower than the average low temperature.
The highest temperature will be relatively higher than the average maximum of 59.9°F in October. Tomorrow, the lowest temperature will be also moderately lower than the average low temperature.
On Sunday, in Keystone, sunrise will be at 7:25 am and sunset at 6:22 pm (CDT).
Tomorrow, the daylight will last for 10h and 58min.
