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New Underwood, South Dakota Weather Forecast
New Underwood, South Dakota Weather
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Weather Forecast for New Underwood, South Dakota : Pennington County
Issued: 1:21 am MST Dec 15, 2025 Latitude: 44.0933202 Longitude: -102.8362824 View on Google Maps

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Overnight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Clear on Overnight Sunny on Monday Mostly Cloudy on Tuesday 30% chance of rain on Wednesday Mostly Sunny on Thursday Partly Sunny on Friday 10% chance of snow on Saturday Mostly Sunny on Sunday
Low: 29°F High: 57°F High: 56°F High: 61°F High: 35°F High: 60°F High: 46°F High: 45°F
Low: 37°F Low: 30°F Low: 18°F Low: 23°F Low: 29°F Low: 23°F  
Mostly Clear Sunny Mostly Cloudy Rain Mostly Sunny Partly Sunny Snow Mostly Sunny
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Current Conditions at
RAPID CITY - (KRAP)
43°
Feels like 36°F
Clear
as of 12:52 AM MST
Rel. Humidity: 35%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
10 MPH
320° Northwest
Cloud Level(s): Clear
Current Conditions at
ELLSWORTH AFB - (KRCA)
45°
Clear
as of 12:55 AM MST
Rel. Humidity: 30%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
6 MPH
020° North
Cloud Level(s): Clear
Current Conditions at
CUSTER - (KCUT)
46°
Clear
as of 12:53 AM MST
Rel. Humidity: 16%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.06 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
PHILIP - (KPHP)
28°
Clear
as of 12:55 AM MST
Rel. Humidity: 79%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
7 MPH
280° West
Cloud Level(s): Clear
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 29. West wind around 8 mph.
Sunny on Monday Monday... Sunny, with a high near 57. West wind 6 to 8 mph becoming south in the afternoon. Winds could gust as high as 16 mph.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a steady temperature around 37. Southwest wind around 9 mph, with gusts as high as 15 mph.
Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, then gradually becoming sunny, with a high near 56. Northwest wind 10 to 18 mph, with gusts as high as 30 mph.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 30. South wind 9 to 13 mph, with gusts as high as 22 mph.
30% chance of rain Wednesday Wednesday... A 30 percent chance of rain, mainly between 11am and 5pm. Partly sunny, with a high near 61. Windy, with a south wind 20 to 30 mph becoming northwest in the afternoon. Winds could gust as high as 44 mph.
20% chance of rain & snow Wednesday Night Wednesday Night... A slight chance of rain and snow before 8pm, then a slight chance of snow between 8pm and 11pm. Partly cloudy, with a low around 18. Windy, with a northwest wind 26 to 30 mph, with gusts as high as 49 mph. Chance of precipitation is 20%.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 35. Breezy, with a northwest wind 17 to 22 mph becoming southeast 11 to 16 mph in the afternoon. Winds could gust as high as 36 mph.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 23.
Partly Sunny on Friday Friday... Partly sunny, with a high near 60. Breezy.
10% chance of rain & snow Friday Night Friday Night... A slight chance of rain and snow. Mostly cloudy, with a low around 29.
10% chance of snow Saturday Saturday... A slight chance of snow. Partly sunny, with a high near 46.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 23.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 45.
Current Radar Image


Sun Almanac for New Underwood, South Dakota
Sunrise: 07:20 AM
Sunset: 4:14 PM
Civil Sunrise:06:47 AM
Civil Sunset: 4:47 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:23 PM
Astro Sunrise: 05:35 AM
Astro Sunset: 5:58 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.