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

Hazardous Weather Conditions

Current conditions at

Ankeny Regional Airport (KIKV)

Lat: 41.69°NLon: 93.57°WElev: 886ft.

Light Rain

46°F

8°C

Humidity 100%
Wind Speed Vrbl 6 mph
Barometer 30.05 in
Dewpoint 46°F (8°C)
Visibility 3.00 mi
Wind Chill43°F (6°C)
Last update 9 Apr 8:15 pm CDT
Extended Forecast for

Johnston IA

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 3am, then isolated showers between 3am and 4am. Some of the storms could produce heavy rainfall. Low around 39. East wind 7 to 9 mph becoming north after midnight. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 39 °F

    Heavy Rain
    then Showers
    Likely

  • Friday

    Friday: Mostly sunny, with a high near 57. North wind 6 to 8 mph.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 40. East wind 3 to 6 mph.

    Low: 40 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 63. Southeast wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 63 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 59. Breezy, with a south wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    T-storms then
    Showers
    Likely and
    Breezy

  • Sunday

    Sunday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. Windy. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Showers
    Likely and
    Windy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 62. Breezy. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    Showers and
    Breezy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. Breezy.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A 40 percent chance of showers. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before 3am, then isolated showers between 3am and 4am. Some of the storms could produce heavy rainfall. Low around 39. East wind 7 to 9 mph becoming north after midnight. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Friday
Mostly sunny, with a high near 57. North wind 6 to 8 mph.
Friday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 40. East wind 3 to 6 mph.
Saturday
Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 63. Southeast wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 59. Breezy, with a south wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. Windy. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 62. Breezy. Chance of precipitation is 40%.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. Breezy.
Monday Night
A 40 percent chance of showers. Partly cloudy, with a low around 63.
Tuesday
Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Johnston IA
 41.67°N 93.69°W
Last Update:
8:32 pm CDT Apr 9, 2026
Forecast Valid:
8pm CDT Apr 9, 2026-6pm CDT Apr 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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