Current Conditions

Altoona, Iowa

59°F15°C
Drizzle

Wind

ENE 8 mph13 km/h

Humidity

97%

Cloud Cover

100%

As of Monday, September 21, 2026 at 10:48 PM CDT

Today's Outlook

Night

Overcast, with a low around 57°F14°C. Breezy from the ENE at 8 to 9 mph13 to 14 km/h. 58% chance of drizzle overnight.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 60°F16°CLow 56°F13°CPrecip 0.05 in1.3 mm58%Cloud 96%Wind ENE 9 mph14 km/hTuesday: Overcast and mild, with a high of 60°F16°C and morning low of 56°F13°C. Breezy from the E at 9 to 10 mph15 to 16 km/h. 31% chance of drizzle in the morning. Tuesday Night: Overcast, with a low around 57°F14°C. Breezy from the ENE at 8 to 9 mph13 to 14 km/h. 58% chance of drizzle overnight.
Partly CloudyHigh 68°F20°CLow 51°F10°CPrecip 0 in0 mmCloud 48%Wind E 6 mph10 km/hWednesday: Partly cloudy and warm, with a high of 68°F20°C and morning low of 51°F10°C. Breezy from the E at 7 to 8 mph11 to 13 km/h. Wednesday Night: Partly cloudy, with a low around 53°F12°C. Light wind from the E around 6 mph9 km/h.
DrizzleHigh 68°F20°CLow 55°F13°CPrecip 0.02 in0.5 mm30%Cloud 84%Wind ESE 6 mph9 km/hThursday: Overcast and mild, with a high of 68°F20°C and morning low of 55°F13°C. Light wind from the SE around 6 mph10 km/h. Thursday Night: Mostly cloudy, with a low around 56°F13°C. Light wind from the ESE around 5 mph9 km/h. 30% chance of drizzle in the evening.
Light RainHigh 68°F20°CLow 60°F15°CPrecip 0.15 in3.7 mm39%Cloud 97%Wind ESE 6 mph10 km/hFriday: Overcast and warm, with a high of 68°F20°C and morning low of 60°F15°C. Breezy from the ESE at 6 to 8 mph10 to 13 km/h. 36% chance of light rain throughout the day. Friday Night: Overcast, with a low around 60°F16°C. Breezy from the ESE at 6 to 7 mph9 to 12 km/h. 39% chance of light rain throughout the night.
Light RainHigh 66°F19°CLow 60°F15°CPrecip 0.35 in8.9 mm63%Cloud 94%Wind SE 10 mph16 km/hSaturday: Overcast and mild, with a high of 66°F19°C and morning low of 60°F15°C. Breezy from the SE at 11 to 12 mph17 to 19 km/h. 63% chance of light rain throughout the day. Saturday Night: Overcast, with a low around 61°F16°C. Breezy from the ESE at 9 mph14 km/h. 55% chance of light rain throughout the night.
Light RainHigh 70°F21°CLow 59°F15°CPrecip 0.17 in4.3 mm58%Cloud 78%Wind ESE 6 mph10 km/hSunday: Overcast and warm, with a high of 70°F21°C and morning low of 59°F15°C. Light wind from the ESE around 6 mph10 km/h. 51% chance of light rain throughout the day. Sunday Night: Mostly cloudy, with a low around 60°F16°C. Breezy from the ESE at 6 to 8 mph10 to 13 km/h. 58% chance of light rain overnight.
DrizzleHigh 74°F23°CLow 58°F14°CPrecip 0.02 in0.5 mm10%Cloud 59%Wind SE 6 mph9 km/hMonday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 58°F14°C. Breezy from the SE at 6 to 7 mph9 to 11 km/h. 10% chance of drizzle in the morning. Monday Night: Mostly cloudy, with a low around 59°F15°C. Breezy from the ESE at 5 to 7 mph9 to 11 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
TuesdaySep 2260°F16°C56°F13°C0.05 in1.3 mm· 58%96%DrizzleENE 9 mph14 km/h
WednesdaySep 2368°F20°C51°F10°C0 in0 mm· —48%Partly CloudyE 6 mph10 km/h
ThursdaySep 2468°F20°C55°F13°C0.02 in0.5 mm· 30%84%DrizzleESE 6 mph9 km/h
FridaySep 2568°F20°C60°F15°C0.15 in3.7 mm· 39%97%Light RainESE 6 mph10 km/h
SaturdaySep 2666°F19°C60°F15°C0.35 in8.9 mm· 63%94%Light RainSE 10 mph16 km/h
SundaySep 2770°F21°C59°F15°C0.17 in4.3 mm· 58%78%Light RainESE 6 mph10 km/h
MondaySep 2874°F23°C58°F14°C0.02 in0.5 mm· 10%59%DrizzleSE 6 mph9 km/h
TuesdaySep 2972°F22°C59°F15°C0.29 in7.3 mm· 31%79%Light RainSSE 9 mph14 km/h
WednesdaySep 3070°F21°C58°F14°C0.33 in8.3 mm· 32%66%ShowersSW 9 mph15 km/h
ThursdayOct 170°F21°C56°F13°C0.17 in4.3 mm· 23%60%ShowersENE 9 mph15 km/h
FridayOct 272°F22°C55°F13°C0.12 in3 mm· 15%53%DrizzleSE 9 mph14 km/h
SaturdayOct 371°F22°C56°F14°C0.13 in3.2 mm· 17%56%ShowersSSE 9 mph15 km/h
SundayOct 470°F21°C56°F13°C0.14 in3.6 mm· 20%56%ShowersSW 9 mph15 km/h
MondayOct 571°F22°C54°F12°C0.13 in3.4 mm· 17%50%DrizzleSSW 8 mph14 km/h
TuesdayOct 672°F22°C54°F12°C0.06 in1.6 mm· 14%44%DrizzleSSW 8 mph13 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 41.6442°N, 93.4647°W·Elevation: 291m·Timezone: America/Chicago·Population: 16,984