National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Ankeny Regional Airport (KIKV)

Lat: 41.69°NLon: 93.57°WElev: 886ft.

Overcast

77°F

25°C

Humidity 57%
Wind Speed SE 13 G 18 mph
Barometer 29.97 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 26 Jun 5:15 pm CDT
Extended Forecast for

Johnston IA

  • Tonight

    Tonight: Partly cloudy, with a low around 60. East southeast wind 5 to 9 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 82. Southeast wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 69. Southeast wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 93. Heat index values as high as 105. Breezy, with a southeast wind 14 to 18 mph, with gusts as high as 29 mph.

    High: 93 °F

    Becoming
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. Breezy, with a south wind 11 to 16 mph, with gusts as high as 28 mph.

    Low: 77 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 96. Windy.

    High: 96 °F

    Sunny and
    Windy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 78. Breezy.

    Low: 78 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97. Breezy.

    High: 97 °F

    Sunny then
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. Breezy.

    Low: 76 °F

    Partly Cloudy
    and Breezy
    then Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 60. East southeast wind 5 to 9 mph.
Saturday
Mostly sunny, with a high near 82. Southeast wind 6 to 14 mph, with gusts as high as 23 mph.
Saturday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 69. Southeast wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 93. Heat index values as high as 105. Breezy, with a southeast wind 14 to 18 mph, with gusts as high as 29 mph.
Sunday Night
Mostly clear, with a low around 77. Breezy, with a south wind 11 to 16 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 96. Windy.
Monday Night
Partly cloudy, with a low around 78. Breezy.
Tuesday
Sunny and hot, with a high near 97. Breezy.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. Breezy.
Wednesday
Mostly sunny and hot, with a high near 97.
Wednesday Night
Partly cloudy, with a low around 76.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Partly cloudy, with a low around 75.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Johnston IA
 41.72°N 93.68°W
Last Update:
4:57 pm CDT Jun 26, 2026
Forecast Valid:
5pm CDT Jun 26, 2026-6pm CDT Jul 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation