Watertown, SD Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Watertown, SD in one place.
Mostly sunny, with a high near 85. West southwest wind 7 to 18 mph, with gusts as high as 30 mph. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Watertown, 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: Aug 23, 2026 3:53 PM CDT.
The active forecast window currently covers Aug 25 to Aug 29, 2026 for Watertown, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 25 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 3:53 PM CDT
- Forecast office
- ABR
- Source
- NOAA / NWS
Daily Outlook
This Week in Watertown
Tuesday looks like the warmest upcoming period in Watertown at 85 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Tuesday at about 7 to 18 mph WSW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 3:53 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- ABR
- Radar station
- KABR
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 60. West northwest wind 8 to 17 mph, with gusts as high as 28 mph.
Sunny, with a high near 80. Northwest wind 8 to 17 mph, with gusts as high as 28 mph.
Mostly clear, with a low around 55. North wind 3 to 13 mph, with gusts as high as 21 mph.
Sunny, with a high near 81. North wind 2 to 7 mph.
Mostly clear, with a low around 57.
A slight chance of rain showers after 7am. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 40%.
A chance of rain showers before 1pm. Partly sunny, with a high near 83. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Aug 25
|
Mostly Sunny
|
85°F |
7 to 18 mph
WSW
|
|
Tuesday Night
Aug 25
|
Mostly Clear
|
60°F |
8 to 17 mph
WNW
|
|
Wednesday
Aug 26
|
Sunny
|
80°F |
8 to 17 mph
NW
|
|
Wednesday Night
Aug 26
|
Mostly Clear
|
55°F |
3 to 13 mph
N
|
|
Thursday
Aug 27
|
Sunny
|
81°F |
2 to 7 mph
N
|
|
Thursday Night
Aug 27
|
Mostly Clear
|
57°F |
6 mph
ENE
|
|
Friday
Aug 28
|
Slight Chance Rain Showers
|
82°F |
6 to 13 mph
SE
|
|
Friday Night
Aug 28
|
Chance Showers And Thunderstorms
|
61°F |
8 to 12 mph
SE
|
|
Saturday
Aug 29
|
Chance Rain Showers
|
83°F |
8 to 13 mph
SE
|
|
Saturday Night
Aug 29
|
Slight Chance Showers And Thunderstorms
|
63°F |
7 to 10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Watertown.
Nearby forecast pages are not available for this location yet.
