Iowa · NWS DMX office

Altoona, IA weather

It is 55°F and mostly cloudy at Ankeny Regional Airport as of Oct 28, 6:55 AM CDT. Today: Chance Rain Showers, high near 76°F, 20% chance of precipitation. Forecast from the National Weather Service, issued Oct 28, 5:37 AM CDT.

Updated Oct 28, 7:31 AM CDT (snapshot)

Current conditions

Temperature

55°F

Mostly Cloudy

Wind

SSE 5 mph

Humidity 88% · dew point 52°F

Pressure · visibility

30.08 inHg

Visibility 10 mi

Observed at Ankeny Regional Airport (KIKV), Oct 28, 6:55 AM CDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Altoona forecast zone right now.

Around the NWS DMX forecast area

No active alerts in zones served by the DMX office near Altoona.

From the alert snapshot of Oct 28, 2026, 8:14 AM EDT. No alerts are active anywhere in Iowa.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Altoona (local time)
TimeTempForecastPrecip. chanceWind
Wed 7 AM55°FSlight Chance Rain Showers17%SSE 6 mph
Wed 8 AM55°FSlight Chance Rain Showers17%SSE 7 mph
Wed 9 AM58°FSlight Chance Rain Showers20%SSE 8 mph
Wed 10 AM62°FSlight Chance Rain Showers19%S 10 mph
Wed 11 AM66°FSlight Chance Rain Showers19%S 12 mph
Wed 12 PM70°FChance Rain Showers12%S 14 mph
Wed 1 PM72°FMostly Sunny13%S 15 mph
Wed 2 PM74°FMostly Sunny13%S 16 mph
Wed 3 PM75°FMostly Sunny12%S 16 mph
Wed 4 PM76°FMostly Sunny5%S 16 mph
Wed 5 PM74°FSunny5%S 15 mph
Wed 6 PM74°FMostly Clear8%S 14 mph
Wed 7 PM71°FChance Showers And Thunderstorms30%S 13 mph
Wed 8 PM68°FChance Showers And Thunderstorms38%S 12 mph
Wed 9 PM67°FChance Showers And Thunderstorms37%S 12 mph
Wed 10 PM66°FChance Showers And Thunderstorms35%SSW 10 mph
Wed 11 PM65°FChance Showers And Thunderstorms48%SSW 9 mph
Thu 12 AM64°FChance Showers And Thunderstorms28%WSW 8 mph
Thu 1 AM63°FSlight Chance Rain Showers20%WSW 7 mph
Thu 2 AM62°FMostly Cloudy10%W 7 mph
Thu 3 AM61°FMostly Cloudy6%WNW 6 mph
Thu 4 AM60°FPartly Cloudy2%NW 6 mph
Thu 5 AM58°FPartly Cloudy0%NNW 7 mph
Thu 6 AM58°FPartly Sunny0%NNW 8 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Altoona can differ.

7-day forecast

Today

High 76°F·Low 56°F

A chance of rain showers before 1pm. Mostly sunny. High near 76, with temperatures falling to around 74 in the afternoon. South southeast wind 6 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

Tonight: A chance of showers and thunderstorms between 7pm and 2am. Partly cloudy. Low around 56, with temperatures rising to around 58 overnight. West southwest wind 6 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Thursday

High 69°F·Low 49°F

Sunny. High near 69, with temperatures falling to around 67 in the afternoon. North northeast wind around 8 mph. New rainfall amounts less than a tenth of an inch possible.

Thursday Night: A chance of rain showers after 1am. Partly cloudy, with a low around 49. East wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

Friday

High 63°F·Low 52°F

A chance of rain showers before 7am, then showers and thunderstorms. Cloudy, with a high near 63. East southeast wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

Friday Night: Showers and thunderstorms likely. Cloudy, with a low around 52. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

Saturday

High 66°F·Low 53°F

Showers and thunderstorms likely. Cloudy, with a high near 66. Chance of precipitation is 70%.

Saturday Night: A chance of rain showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

Sunday

High 66°F·Low 54°F

A slight chance of rain showers before noon. Mostly cloudy, with a high near 66.

Sunday Night: A slight chance of rain showers after midnight. Mostly cloudy, with a low around 54.

Monday

High 65°F·Low 53°F

A chance of rain showers before noon, then showers and thunderstorms likely. Cloudy, with a high near 65. Chance of precipitation is 60%.

Monday Night: Showers and thunderstorms likely. Cloudy, with a low around 53. Chance of precipitation is 70%.

Tuesday

High 64°F·Low 49°F

Rain showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.

Tuesday Night: A chance of rain showers. Mostly cloudy, with a low around 49.

Nearby cities

Larger cities in the area

Other cities in Polk County

See every city we cover in Iowa, or check all active alerts.

About this forecast

Forecast office
Altoona is served by the National Weather Service DMX forecast office, forecast zone IAZ060, county zone IAC153.
Location used
The Census Bureau's internal point for Altoona (41.6506, -93.4800), in Polk County. Population: 22,598 (2024 estimate), number 26 of the 27 Iowa cities on this site.
Radar
Nearest NWS radar: KDMX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/41.6506,-93.48 (forecast issued Oct 28, 5:37 AM CDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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