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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Ankeny Regional Airport (KIKV)

Lat: 41.69°NLon: 93.57°WElev: 886ft.

Fair

68°F

20°C

Humidity 88%
Wind Speed SE 5 mph
Barometer 30.06 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 29 Aug 1:15 am CDT
Extended Forecast for

Altoona IA

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 71. South wind around 9 mph.

    Low: 71 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 87. Breezy, with a south southeast wind 10 to 16 mph, with gusts as high as 28 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    Showers then
    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 74. South wind 11 to 13 mph, with gusts as high as 24 mph.

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 92. Heat index values as high as 100. South southwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 92 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. South southeast wind 9 to 11 mph, with gusts as high as 18 mph.

    Low: 76 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 92.

    High: 92 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 71. South wind around 9 mph.
Saturday
A 40 percent chance of showers and thunderstorms, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 87. Breezy, with a south southeast wind 10 to 16 mph, with gusts as high as 28 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Partly cloudy, with a low around 74. South wind 11 to 13 mph, with gusts as high as 24 mph.
Sunday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 92. Heat index values as high as 100. South southwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. South southeast wind 9 to 11 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 93.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 92.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
Mostly sunny, with a high near 92.
Thursday Night
Partly cloudy, with a low around 73.
Friday
Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Altoona IA
 41.65°N 93.51°W
Last Update:
9:57 pm CDT Aug 28, 2026
Forecast Valid:
1am CDT Aug 29, 2026-6pm CDT Sep 4, 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