Alta, IA Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Alta, IA in one place.
Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms between 7am and 10am, then a chance of showers and thunderstorms between 10am and 1pm. Mostly sunny, with a high near 87. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Local Weather Overview
This forecast page for Alta, IA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 27, 2026 10:11 PM CDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Alta, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 27, 2026 10:11 PM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in Alta
Sunday looks like the warmest upcoming period in Alta at 91 degrees F.
Monday Night is the coolest period ahead with temperatures near 67 degrees F.
The strongest winds are forecast for Saturday at about 15 to 20 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 10:11 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- FSD
- Radar station
- KFSD
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 73. South wind around 10 mph.
Mostly sunny, with a high near 91. South southwest wind around 10 mph.
Partly cloudy, with a low around 72.
A slight chance of rain showers between 7am and 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 88.
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86. Chance of precipitation is 40%.
A chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 68.
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Showers And Thunderstorms Likely
|
87°F |
15 to 20 mph
S
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
73°F |
10 mph
S
|
|
Sunday
Aug 30
|
Mostly Sunny
|
91°F |
10 mph
SSW
|
|
Sunday Night
Aug 30
|
Partly Cloudy
|
72°F |
5 to 10 mph
SSW
|
|
Monday
Aug 31
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
88°F |
5 to 10 mph
SW
|
|
Monday Night
Aug 31
|
Chance Showers And Thunderstorms
|
67°F |
5 mph
ESE
|
|
Tuesday
Sep 1
|
Chance Showers And Thunderstorms
|
86°F |
0 to 5 mph
ESE
|
|
Tuesday Night
Sep 1
|
Chance Showers And Thunderstorms
|
67°F |
5 mph
E
|
|
Wednesday
Sep 2
|
Chance Showers And Thunderstorms
|
88°F |
5 mph
SSE
|
|
Wednesday Night
Sep 2
|
Slight Chance Showers And Thunderstorms
|
68°F |
5 mph
SSE
|
|
Thursday
Sep 3
|
Slight Chance Showers And Thunderstorms
|
87°F |
5 to 10 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Alta.