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Local Forecast
Current conditions, 5-day forecast, and active NWS weather alerts for Dempster, SD.
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Hour-by-Hour Current Observation
Cloudy
Wind
0 mph
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UV Index
7
High
Humidity
74%
Dew 69°F
Sun
5:42 AM · 9:10 PM
Rise · Set
Source: WATERTOWN (KATY). Slider scrubs the next 12 hours.
5-Day Outlook
Today
Chance of Thunderstorms
Overnight: Isolated T-storm
Today
A chance of showers and thunderstorms. Partly sunny. High near 82, with temperatures falling to around 78 in the afternoon. South wind around 3 mph. Chance of precipitation is 40%.
Night
A chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 65. East wind 1 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Tuesday
Mostly Cloudy
Overnight: Thunderstorms
Tuesday
Mostly sunny. High near 93, with temperatures falling to around 90 in the afternoon. South southeast wind 5 to 20 mph, with gusts as high as 29 mph.
Night
Showers and thunderstorms between 10pm and 4am. Some of the storms could be severe. Mostly cloudy, with a low around 67. South wind 10 to 20 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
Wednesday
Partly Sunny
Overnight: Chance of Showers
Wednesday
A slight chance of rain showers between 1pm and 4pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Southwest wind 13 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 57. West wind 5 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.
Thursday
Chance of Scattered Thunderstorms
Overnight: Mostly Clear
Thursday
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 74. West wind 9 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.
Night
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 55. West wind 9 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Friday
Mostly Sunny
Overnight: Partly Cloudy
Friday
Sunny, with a high near 81. West wind 10 to 23 mph, with gusts as high as 35 mph.
Night
Mostly clear, with a low around 55.
Dempster, SD Weather Analysis Tools
Regional Radar
Composite reflectivity with Lightning overlay.
Regional Observations
Regional & historic weather conditions near Dempster, SD.
Active Alerts
Per-location alert detail and NWS source feeds.
Storm Reports
Recent storm reports including wind, hail, and tornadoes.
Model Analysis
Interactive forecast model guidance.
Satellite Imagery
GOES-East and GOES-West, visible and infrared.