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 >

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9° N Lon: 97.15° W Elev: 1745 ft.

Fair

70°F

21°C

Humidity 93%
Wind Speed E 6 mph
Barometer 29.92 in (1012.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 17 Aug 9:53 pm CDT
Detailed forecast for

Hamlin County

Rest Of Tonight
Mostly cloudy. Near steady temperature around 70. Southeast winds around 5 mph, becoming southwest.
Monday
Partly sunny. Humid with highs in the lower 80s. Northwest winds 5 to 10 mph.
Monday Night
Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the lower 60s. Northeast winds 5 to 10 mph.
Tuesday
Mostly sunny. Humid with highs in the lower 80s. Northeast winds around 5 mph.
Tuesday Night
Mostly clear. Humid with lows in the lower 60s. East winds around 5 mph.
Wednesday
Partly sunny in the morning, then becoming sunny. Highs in the lower 80s.
Wednesday Night
Clear. Lows in the lower 60s.
Thursday
Mostly sunny. Highs in the mid 80s.
Thursday Night
Partly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the lower 60s. Chance of rain 40 percent.
Friday
Partly sunny. A slight chance of thunderstorms in the morning. Highs in the upper 70s. Chance of rain 20 percent.
Friday Night And Saturday
Mostly clear. Lows in the mid 50s. Highs in the lower 70s.
Saturday Night And Sunday
Mostly clear. Lows around 50. Highs around 70.



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943 PM CDT Sun Aug 17 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database