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.

Fair

75°F

24°C

Humidity 100%
Wind Speed NW 5 mph
Barometer 29.91 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Last update 26 Jul 5:15 am CDT
Extended Forecast for

Johnston IA

Extreme Heat Watch July 26, 09:00pm until July 27, 10:00pm
Heat Advisory July 26, 05:30am until July 26, 12:00pm
Extreme Heat Warning July 26, 12:00pm until July 26, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
Heat Advisory
Extreme Heat Warning
  •  
    Heat Advisory July 26, 05:30am until July 26, 12:00pm

    NOW until 12:00pm Sun

    Heat Advisory

  • Today

    High: 97 °F

    Hot

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 1am and 4am. Partly cloudy, with a low around 78. South wind around 9 mph. Chance of precipitation is 20%.

    Low: 78 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Sunny and hot, with a high near 97. Heat index values as high as 109. South southwest wind 6 to 8 mph becoming northwest in the afternoon.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 73. North wind 3 to 7 mph.

    Low: 73 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90. East northeast wind 3 to 6 mph.

    High: 90 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Today
Partly sunny and hot, with a high near 97. Heat index values as high as 112. Calm wind becoming southwest 5 to 9 mph in the morning.
Tonight
A slight chance of showers and thunderstorms between 1am and 4am. Partly cloudy, with a low around 78. South wind around 9 mph. Chance of precipitation is 20%.
Monday
Sunny and hot, with a high near 97. Heat index values as high as 109. South southwest wind 6 to 8 mph becoming northwest in the afternoon.
Monday Night
Partly cloudy, with a low around 73. North wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 90. East northeast wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 88.
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:
5:11 am CDT Jul 26, 2026
Forecast Valid:
5am CDT Jul 26, 2026-6pm CDT Aug 1, 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