Weather forecast for 10 daysJohnston, IA
Weather forecast for the weekend
Saturday Oct 17, 2026
- 61°F
- 41°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 13mphSSW 204°
- Humidity: 50%
- UV index: 4
- Sunrise: 7:29 am CDT
- Sunset: 6:30 pm CDT
- details ▼
Today, in Johnston, sunshine will likely continue with scattered clouds at most.
A temperature range of an enjoyable 60.8°F to a cold 41°F is forecasted.
The highest temperature for today is forecasted to reflect October's average of 60.4°F.
Sunrise was at 7:29 am and sunset will be at 6:30 pm; the daylight will last for 11h and 1min.
A temperature range of an enjoyable 60.8°F to a cold 41°F is forecasted.
The highest temperature for today is forecasted to reflect October's average of 60.4°F.
Sunrise was at 7:29 am and sunset will be at 6:30 pm; the daylight will last for 11h and 1min.
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.
10-day overview
Daily temperatures
Warmest period: Thursday - Saturday 77°C.
Coldest day: today 61°C.
Coldest day: today 61°C.
Chance of precipitation
Highest chance: Wednesday 15%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- 61°F
- 41°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 13mphSSW 204°
- Humidity: 50%
- UV index: 4
- Sunrise: 7:29 am CDT
- Sunset: 6:30 pm CDT
- details ▼
- 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 ▼
- Monday
- Oct 19, 2026
- 70°F
- 46°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 10mphS 174°
- Humidity: 59%
- UV index: 4
- Sunrise: 7:31 am CDT
- Sunset: 6:27 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 52°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 9mphSSE 155°
- Humidity: 60%
- UV index: 4
- Sunrise: 7:33 am CDT
- Sunset: 6:26 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 75°F
- 52°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 9mphS 179°
- Humidity: 59%
- UV index: 4
- Sunrise: 7:34 am CDT
- Sunset: 6:24 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 54°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 7mphSSE 152°
- Humidity: 63%
- UV index: 4
- Sunrise: 7:35 am CDT
- Sunset: 6:23 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 57°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 13mphSSE 150°
- Humidity: 54%
- UV index: 3
- Sunrise: 7:36 am CDT
- Sunset: 6:21 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 77°F
- 55°F
Partly Cloudy
- Precip. probability: 11%
- Precipitation: 0"
- Wind: 13mphSSE 165°
- Humidity: 50%
- UV index: 3
- Sunrise: 7:37 am CDT
- Sunset: 6:20 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 70°F
- 52°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 9mphNW 313°
- Humidity: 59%
- UV index: 3
- Sunrise: 7:38 am CDT
- Sunset: 6:18 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 72°F
- 55°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 9mphSE 125°
- Humidity: 62%
- UV index: 3
- Sunrise: 7:40 am CDT
- Sunset: 6:17 pm CDT
- details ▼
Over the next ten days, conditions will reflect that a combination of dull and bright weather is forecasted.
Rain is not predicted in Johnston in the upcoming days.
Temperature differences will be noticeable in the next ten days. Maximum temperatures are forecasted between 60.8°F and 77°F, while the lowest nightly temperature differences will be also quite pronounced, as nighttime lows are forecast to fall between 41°F and 57.2°F.
Thursday through next Saturday, with the highest temperature of 77°F, will be the warmest days; today is the coldest day, with a maximum temperature of 60.8°F.
Rain is not predicted in Johnston in the upcoming days.
Temperature differences will be noticeable in the next ten days. Maximum temperatures are forecasted between 60.8°F and 77°F, while the lowest nightly temperature differences will be also quite pronounced, as nighttime lows are forecast to fall between 41°F and 57.2°F.
Thursday through next Saturday, with the highest temperature of 77°F, will be the warmest days; today is the coldest day, with a maximum temperature of 60.8°F.
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 Saturday, in Johnston, sunny conditions are expected to continue.
Today, the maximum temperature will be 60.8°F, while the minimum temperature will be 41°F.
The highest temperature today will be in line with the average maximum temperature in October. The lowest temperature today will be also in line with the average low temperature.
The highest temperature today will be in line with the average maximum temperature in October. The lowest temperature today will be also in line with the average low temperature.
On Saturday, in Johnston, sunrise was at 7:29 am and sunset will be at 6:30 pm (CDT).
Today, the daylight will last for 11h and 1min.
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.





