Tropical Moisture Brings Slight Risk of Excessive Rainfall to the Southwest; Strong to Locally Severe Storms on the Plains

Heavy rain and flash flooding are possible across portions of the Southwest through Friday, where Flood Watches are in effect. Strong to locally severe thunderstorms are possible today across portions of the Plains. A tropical wave is causing heavy rainfall in Puerto Rico and the Virgin Islands, which may cause urban and small stream flooding and landslides today. Read More >

Current conditions at

MANDAN (KY19)

Lat: 46.77° N Lon: 100.9° W Elev: 1946 ft.

57°F

14°C

Humidity 100%
Wind Speed NE 12 G 20 mph
Barometer 30.10 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 18 Sep 2:15 pm CDT
Detailed forecast for

Sioux County

Rest Of Today
Showers. Highs around 60. North winds around 15 mph with gusts up to 25 mph.
Tonight
Showers likely. Lows in the lower 50s. North winds 10 to 15 mph. Chance of rain 60 percent.
Friday
Mostly cloudy. A chance of showers in the morning. Highs in the lower 60s. North winds around 10 mph with gusts up to 20 mph. Chance of rain 30 percent.
Friday Night
Mostly cloudy. Lows in the lower 50s. Northwest winds around 5 mph.
Saturday
Partly sunny in the morning then clearing. Highs in the lower 70s. Southwest winds around 5 mph.
Saturday Night
Mostly clear. Lows in the lower 50s.
Sunday
Sunny. Highs in the upper 70s.
Sunday Night
Increasing clouds. Lows in the mid 50s.
Monday
Mostly sunny with a 20 percent chance of showers. Highs in the lower 70s.
Monday Night
Increasing clouds. Lows in the lower 50s.
Tuesday
Mostly sunny. Highs in the lower 70s.
Tuesday Night
Mostly clear. Lows around 50.
Wednesday
Sunny. Highs in the lower 70s.



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1239 PM CDT Thu Sep 18 2025
 
 

Additional Resources

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National Digital Forecast Database