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.

Fair

68°F

20°C

Humidity 38%
Wind Speed S 14 G 25 mph
Barometer 30.03 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 20 Apr 4:55 pm CDT
Extended Forecast for

Johnston IA

  • Tonight

    Tonight: Increasing clouds, with a low around 53. South southeast wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 81. West wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55. Light and variable wind becoming south around 6 mph after midnight.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80. South wind 5 to 14 mph, with gusts as high as 21 mph.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60. South wind 11 to 14 mph, with gusts as high as 21 mph.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 74. Windy. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Windy. Mostly
    Cloudy then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 49. Breezy. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: A 20 percent chance of showers. Mostly sunny, with a high near 64.

    High: 64 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 53. South southeast wind 10 to 14 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 81. West wind 8 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 55. Light and variable wind becoming south around 6 mph after midnight.
Wednesday
Sunny, with a high near 80. South wind 5 to 14 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 60. South wind 11 to 14 mph, with gusts as high as 21 mph.
Thursday
Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 74. Windy. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 49. Breezy. Chance of precipitation is 70%.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 43.
Saturday
Partly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 60.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 43.
Monday
A 30 percent chance of showers. Mostly cloudy, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnston IA
 41.67°N 93.69°W
Last Update:
2:36 pm CDT Apr 20, 2026
Forecast Valid:
5pm CDT Apr 20, 2026-6pm CDT Apr 27, 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