Altamont, SD Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Altamont, SD in one place.
Mostly sunny, with a high near 87. South wind 13 to 22 mph, with gusts as high as 36 mph.
Local Weather Overview
This forecast page for Altamont, SD 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: Apr 21, 2026 4:18 PM CDT.
The active forecast window currently covers Apr 22 to Apr 27, 2026 for Altamont, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 27, 2026
- Latest sync
- Apr 21, 2026 4:18 PM CDT
- Forecast office
- ABR
- Source
- NOAA / NWS
Daily Outlook
This Week in Altamont
Wednesday looks like the warmest upcoming period in Altamont at 87 degrees F.
Friday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Wednesday Night at about 22 to 26 mph S.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 21, 2026 4:18 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ABR
- Radar station
- KFSD
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58. South wind 22 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms. Partly sunny, with a high near 74. Southwest wind 18 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain showers before 1am. Partly cloudy, with a low around 37. West wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunny, with a high near 55. West northwest wind around 18 mph, with gusts as high as 28 mph.
Partly cloudy, with a low around 33. Northwest wind 7 to 16 mph, with gusts as high as 24 mph.
A slight chance of rain showers between 7am and 1pm. Mostly sunny, with a high near 55. Southeast wind 7 to 12 mph. Chance of precipitation is 20%.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 37. Chance of precipitation is 20%.
A chance of rain showers. Partly sunny, with a high near 55. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a low around 39. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a high near 50. Chance of precipitation is 40%.
A chance of rain showers before 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Mostly Sunny
|
87°F |
13 to 22 mph
S
|
|
Wednesday Night
Apr 22
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
58°F |
22 to 26 mph
S
|
|
Thursday
Apr 23
|
Chance Showers And Thunderstorms
|
74°F |
18 to 23 mph
SW
|
|
Thursday Night
Apr 23
|
Chance Rain Showers
|
37°F |
18 mph
W
|
|
Friday
Apr 24
|
Sunny
|
55°F |
18 mph
WNW
|
|
Friday Night
Apr 24
|
Partly Cloudy
|
33°F |
7 to 16 mph
NW
|
|
Saturday
Apr 25
|
Slight Chance Rain Showers
|
55°F |
7 to 12 mph
SE
|
|
Saturday Night
Apr 25
|
Partly Cloudy then Slight Chance Rain Showers
|
37°F |
6 to 9 mph
ESE
|
|
Sunday
Apr 26
|
Chance Rain Showers
|
55°F |
8 to 15 mph
E
|
|
Sunday Night
Apr 26
|
Chance Rain Showers
|
39°F |
14 mph
ENE
|
|
Monday
Apr 27
|
Chance Rain Showers
|
50°F |
14 to 20 mph
NNE
|
|
Monday Night
Apr 27
|
Chance Rain Showers
|
33°F |
8 to 18 mph
NNW
|
Nearby Forecasts
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Nearby forecast pages are not available for this location yet.