Weather forecast for tomorrowJohnston, IA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 68°F
- 43°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 15mphSSW 192°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:30 am CDT
- Sunset: 6:29 pm CDT
- details ▼
On Sunday, October 18, sunshine is expected with little to no cloud cover.
A temperature range of an agreeable 68°F to a chilly 42.8°F is predicted.
Tomorrow's highest temperature will be a couple of degrees higher than the average October maximum of 60.4°F.
Sunrise will be at 7:30 am and sunset at 6:29 pm; tomorrow's daylight will last for 10h and 58min.
A temperature range of an agreeable 68°F to a chilly 42.8°F is predicted.
Tomorrow's highest temperature will be a couple of degrees higher than the average October maximum of 60.4°F.
Sunrise will be at 7:30 am and sunset at 6:29 pm; tomorrow's daylight will last for 10h and 58min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 43°C.
Coldest hour: 6 am 43°C.
Chance of precipitation
Highest chance: 6 am 5%.
Hourly weather forecast
- 12 am
- 46°F
- Feels like:43°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 9mphS 191°
- Humidity: 70%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 45°F
- Feels like:39°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 8mphS 190°
- Humidity: 75%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 43°F
- Feels like:37°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphSSW 192°
- Humidity: 77%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 43°F
- Feels like:37°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 9mphS 190°
- Humidity: 83%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:30 am
- 8 am
- 43°F
- Feels like:37°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 9mphS 188°
- Humidity: 81%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:48°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 13mphSSW 194°
- Humidity: 62%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 61°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 15mphSSW 194°
- Humidity: 45%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 15mphSSW 193°
- Humidity: 39%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 15mphSSW 191°
- Humidity: 36%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphS 182°
- Humidity: 39%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:29 pm
- 8 pm
- 57°F
- Feels like:55°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphS 175°
- Humidity: 56%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 54°F
- Feels like:50°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 8mphS 187°
- Humidity: 67%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, sunshine is expected.
The temperature will vary between a minimum of 42.8°F and a maximum of 66.2°F. The warmest part of the day will be from 2 pm to 5 pm.
The temperature is expected to be a couple of degrees higher than the average peak in October, which is 60.4°F. Tomorrow, the minimum temperature will be also alike with the average low for October.
The temperature will vary between a minimum of 42.8°F and a maximum of 66.2°F. The warmest part of the day will be from 2 pm to 5 pm.
The temperature is expected to be a couple of degrees higher than the average peak in October, which is 60.4°F. Tomorrow, the minimum temperature will be also alike with the average low for October.
Updated: Oct 17, 2026 @ 15:14:55 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 highest temperature will be 68°F, while the lowest temperature will be 42.8°F.
The maximum temperature tomorrow will be slightly warmer than the average highest temperature in October. The lowest temperature will be in line with the average low of 44.6°F.
The maximum temperature tomorrow will be slightly warmer than the average highest temperature in October. The lowest temperature will be in line with the average low of 44.6°F.
On Sunday, in Johnston, sunrise will be at 7:30 am and sunset at 6:29 pm (CDT).
Tomorrow, the daylight will last for 10h and 58min.
