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Hazardous Weather Conditions

Current conditions at

Ankeny Regional Airport (KIKV)

Lat: 41.69°NLon: 93.57°WElev: 886ft.

Fair

77°F

25°C

Humidity 94%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 4 Sep 10:55 pm CDT
Extended Forecast for

Johnston IA

Heat Advisory September 4, 11:02pm until September 5, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 4, 11:02pm until September 5, 07:00pm

    NOW until 7:00pm Sat

    Heat Advisory

  • Tonight

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming east 5 to 7 mph in the afternoon.

    High: 93 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. East wind around 6 mph.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 87. East southeast wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 68. East wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Labor Day

    Labor Day: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 71. Calm wind.
Saturday
Sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming east 5 to 7 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 71. East wind around 6 mph.
Sunday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 87. East southeast wind around 8 mph. Chance of precipitation is 50%. 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. Partly cloudy, with a low around 68. East wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.
Labor Day
Mostly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 86.
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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:
10:46 pm CDT Sep 4, 2026
Forecast Valid:
11pm CDT Sep 4, 2026-6pm CDT Sep 11, 2026
 
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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