Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. 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

70°F

21°C

Humidity	97%
Wind Speed	SE 6 mph
Barometer	29.92 in (1012.3 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Last update	17 Aug 11:53 pm CDT

More Information:

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

Extended Forecast for

3 Miles SSW Lily SD

Overnight
Low: 69 °F
Patchy Fog
Monday
High: 79 °F
Fog then
Mostly Sunny
Monday Night
Low: 62 °F
Partly Cloudy
Tuesday
High: 81 °F
Sunny
Tuesday Night
Low: 62 °F
Mostly Clear
Wednesday
High: 81 °F
Sunny
Wednesday Night
Low: 63 °F
Mostly Clear
Thursday
High: 83 °F
Sunny
Thursday Night
Low: 61 °F
Chance
T-storms

Detailed Forecast

Overnight

Patchy fog before 3am, then patchy fog after 5am. Otherwise, mostly cloudy, with a steady temperature around 69. South southeast wind 6 to 8 mph becoming northwest. Winds could gust as high as 20 mph.

Monday

Widespread fog, mainly between 7am and 9am. Otherwise, partly sunny, with a high near 79. North northwest wind around 9 mph.

Monday Night

Partly cloudy, with a low around 62. North northeast wind 5 to 7 mph becoming east after midnight.

Tuesday

Sunny, with a high near 81. East wind around 6 mph.

Tuesday Night

Mostly clear, with a low around 62. East northeast wind around 6 mph becoming southeast after midnight.

Wednesday

Sunny, with a high near 81. South southeast wind 6 to 9 mph.

Wednesday Night

Mostly clear, with a low around 63. Southeast wind 9 to 13 mph, with gusts as high as 22 mph.

Thursday

Sunny, with a high near 83. South wind 13 to 15 mph, with gusts as high as 24 mph.

Thursday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 61. South southeast wind 9 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%.

Friday

A slight chance of showers before 1pm. Mostly sunny, with a high near 75. Chance of precipitation is 20%.

Friday Night

Mostly clear, with a low around 53.

Saturday

Sunny, with a high near 69.

Saturday Night

Mostly clear, with a low around 49.

Sunday

Sunny, with a high near 67.