Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Mostly Cloudy

60°F

16°C

Humidity	72%
Wind Speed	E 3 mph
Barometer	30.11 in (1019.0 mb)
Dewpoint	51°F (11°C)
Visibility	10.00 mi
Last update	28 Aug 5:53 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Watertown SD

Today
High: 84 °F
Partly Sunny
Tonight
Low: 65 °F
Chance
T-storms then
T-storms
Likely
Saturday
High: 85 °F
Decreasing
Clouds
Saturday Night
Low: 66 °F
Partly Cloudy
then Chance
Showers
Sunday
High: 86 °F
Mostly Sunny
Sunday Night
Low: 66 °F
Partly Cloudy
Monday
High: 82 °F
Mostly Sunny
Monday Night
Low: 61 °F
Partly Cloudy
Tuesday
High: 82 °F
Mostly Sunny

Detailed Forecast

Today

Partly sunny, with a high near 84. South wind 7 to 15 mph, with gusts as high as 25 mph.

Tonight

Showers and thunderstorms likely, mainly between 1am and 4am. Increasing clouds, with a low around 65. South southeast wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Mostly cloudy, then gradually becoming sunny, with a high near 85. South southeast wind 6 to 11 mph, with gusts as high as 20 mph.

Saturday Night

A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Increasing clouds, with a low around 66. East wind 7 to 9 mph. Chance of precipitation is 30%.

Sunday

Mostly sunny, with a high near 86. East wind around 10 mph becoming south southeast in the afternoon.

Sunday Night

Partly cloudy, with a low around 66. South wind 6 to 8 mph becoming east northeast in the evening.

Monday

Mostly sunny, with a high near 82. West northwest wind 8 to 10 mph, with gusts as high as 20 mph.

Monday Night

Partly cloudy, with a low around 61. West northwest wind 5 to 7 mph becoming light and variable.

Tuesday

Mostly sunny, with a high near 82. South southwest wind 5 to 9 mph.

Tuesday Night

A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 20%.