Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

N/A

Humidity	NA
Wind Speed	NA
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	* Not a current observation *

More Information:

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

Extended Forecast for

5 Miles S Watertown SD

Dense Fog Advisory December 25, 02:45pm until December 26, 10:00am

Click here for hazard details and duration

Dense Fog Advisory

Dense Fog Advisory December 25, 02:45pm until December 26, 10:00am
NOW until 10:00am Fri
Dense Fog Advisory
Christmas Day
High: 35 °F
Areas Fog
Tonight
Low: 26 °F
Slight Chance
Rain and
Patchy Fog
then Patchy
Fog
Friday
High: 39 °F
Freezing Fog
and Areas Fog
Friday Night
Low: 31 °F
Fog then
Mostly Cloudy
Saturday
High: 46 °F
Partly Sunny
Saturday Night
Low: 10 °F
Mostly Cloudy
then Mostly
Cloudy and
Blustery
Sunday
High: 16 °F
Blustery.
Slight Chance
Snow then
Mostly Cloudy
Sunday Night
Low: 1 °F
Mostly Cloudy
and Blustery

Detailed Forecast

Christmas Day

Areas of fog. Otherwise, mostly cloudy, with a steady temperature around 35. South wind 11 to 14 mph, with gusts as high as 24 mph.

Tonight

A slight chance of rain between 7pm and 9pm. Patchy fog before 8pm, then patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 26. South wind 7 to 14 mph becoming north northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

Friday

Areas of fog between 10am and 1pm. Widespread freezing fog between 8am and 10am. Otherwise, partly sunny, with a high near 39. North northwest wind 5 to 9 mph becoming south southeast in the afternoon.

Friday Night

Widespread fog before 7pm. Otherwise, mostly cloudy, with a low around 31. South wind 7 to 10 mph.

Saturday

Partly sunny, with a high near 46. South wind around 10 mph becoming north northwest in the afternoon.

Saturday Night

Mostly cloudy, with a low around 10. Blustery, with a north northwest wind 9 to 14 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 33 mph.

Sunday

A slight chance of snow before noon. Mostly cloudy, with a high near 16. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.

Sunday Night

Mostly cloudy, with a low around 1. Blustery, with a northwest wind 18 to 24 mph, with gusts as high as 37 mph.

Monday

Sunny, with a high near 15. Northwest wind 10 to 17 mph, with gusts as high as 26 mph.

Monday Night

Mostly cloudy, with a low around 7.

Tuesday

Partly sunny, with a high near 33.

Tuesday Night

Mostly cloudy, with a low around 12.

Wednesday

A slight chance of snow. Mostly cloudy, with a high near 22. Chance of precipitation is 20%.