Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

95°F

35°C

Humidity	44%
Wind Speed	S 6 mph
Barometer	29.47 in (996.1 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	101°F (38°C)
Last update	21 Jun 3:53 pm CDT

More Information:

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

Extended Forecast for

3 Miles N Altamont SD

Heat Advisory June 22, 01:00pm until June 22, 07:00pm

Heat Advisory June 21, 04:09pm until June 21, 09:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory June 21, 04:09pm until June 21, 09:00pm
NOW until 9:00pm Sat
Heat Advisory
This Afternoon
High: 92 °F
Hot
Tonight
Low: 74 °F
Mostly Clear
then Slight
Chance
T-storms
Sunday
High: 97 °F
Breezy.
Slight Chance
T-storms then
Sunny
Sunday Night
Low: 62 °F
T-storms
Likely and
Breezy
Monday
High: 74 °F
Mostly Sunny
Monday Night
Low: 54 °F
Mostly Clear
Tuesday
High: 71 °F
Mostly Cloudy
then Slight
Chance
T-storms
Tuesday Night
Low: 58 °F
Chance
T-storms then
T-storms
Likely

Detailed Forecast

This Afternoon

Sunny and hot, with a steady temperature around 92. Heat index values as high as 98. South southwest wind around 10 mph, with gusts as high as 20 mph.

Tonight

A slight chance of showers and thunderstorms after 5am. Mostly clear, with a low around 74. South southwest wind 7 to 14 mph becoming east northeast after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 10%.

Sunday

A slight chance of showers and thunderstorms before 7am. Sunny and hot, with a high near 97. Breezy, with a south wind 14 to 19 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 10%.

Sunday Night

Showers and thunderstorms likely, mainly after 1am. Increasing clouds, with a low around 62. Breezy, with a west wind 14 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Monday

Mostly sunny, with a high near 74. Northwest wind around 14 mph, with gusts as high as 23 mph.

Monday Night

Mostly clear, with a low around 54. North northeast wind 7 to 10 mph.

Tuesday

A slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 71. East wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Tuesday Night

Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 58. East wind 8 to 11 mph. Chance of precipitation is 70%.

Wednesday

Showers and thunderstorms likely, mainly before 1pm. Cloudy, with a high near 70. East wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.

Thursday

A chance of showers and thunderstorms. Mostly cloudy, with a high near 74. Chance of precipitation is 30%.

Thursday Night

Partly cloudy, with a low around 58.

Friday

Mostly sunny, with a high near 80.