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

50°F

10°C

Humidity 88%
Wind Speed NW 10 mph
Barometer 29.85 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 18 Oct 10:55 pm CDT
Extended Forecast for

Johnston IA

  • Tonight

    Tonight: A 30 percent chance of showers before midnight. Cloudy early, then gradual clearing, with a low around 44. Northwest wind 13 to 15 mph, with gusts as high as 26 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 62. West northwest wind around 14 mph, with gusts as high as 24 mph.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45. West southwest wind 5 to 10 mph becoming south southeast after midnight.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 70. Breezy, with a south wind 14 to 16 mph becoming west in the afternoon. Winds could gust as high as 25 mph.

    High: 70 °F

    Sunny and
    Breezy then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. West wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 56. Breezy.

    High: 56 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of showers before midnight. Cloudy early, then gradual clearing, with a low around 44. Northwest wind 13 to 15 mph, with gusts as high as 26 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Sunny, with a high near 62. West northwest wind around 14 mph, with gusts as high as 24 mph.
Sunday Night
Clear, with a low around 45. West southwest wind 5 to 10 mph becoming south southeast after midnight.
Monday
Sunny, with a high near 70. Breezy, with a south wind 14 to 16 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Monday Night
Mostly clear, with a low around 45. West wind 10 to 14 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 56. Breezy.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
Sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Partly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Johnston IA
 41.69°N 93.71°W
Last Update:
10:07 pm CDT Oct 18, 2025
Forecast Valid:
11pm CDT Oct 18, 2025-6pm CDT Oct 25, 2025
 
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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