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Keystone, SD
 48° 
Last Updated on Sep 24 2018, 7:53 pm MDT
Current ConditionsOvercast
Relative Humidity74%
WindNortheast at 4.6 MPH
(4 KT)
Pressure30.01 mb
Dewpoint39.9 F (4.4 C)
Wind Chill46 F (8 C)
Visibility10.00 miles

7-Day Forecast

Tonight
Showers Likely
Low: 38°
A chance of showers and thunderstorms,
then showers likely after 9pm.
Cloudy with a low around 38.
Light west wind becoming
north 8 to 13 mph in the evening.
Chance of precipitation is 70%.


Tuesday
Slight Chance Showers and Breezy
High: 53°
A slight chance of showers before 7am,
then a slight chance of showers after noon.
Partly sunny with a high near 53.
Breezy with a northwest wind 11 to 20 mph
with gusts as high as 28 mph.
Chance of precipitation is 20%.


Tuesday Night
Mostly Clear then Frost
Low: 33°
Widespread frost, mainly after 4am.
Otherwise, mostly clear with a low around 33.
West wind 11 to 16 mph decreasing to 5 to 10 mph in the evening.
Winds could gust as high as 23 mph.


Wednesday
Frost then Mostly Sunny
High: 64°
Widespread frost, mainly before 7am.
Otherwise, sunny with a high near 64.
West wind around 9 mph.


Wednesday Night
Mostly Cloudy
Low: 41°
Mostly cloudy with a low around 41.
Northwest wind around 8 mph.


Thursday
Chance Showers
High: 52°
A 40% chance of showers, mainly after noon.
Mostly cloudy with a high near 52.
Northwest wind 7 to 9 mph.


Thursday Night
Chance Showers then Chance Rain/Snow
Low: 34°
A chance of rain showers before 4am,
then a chance of rain and snow showers.
Mostly cloudy with a low around 34.
Chance of precipitation is 50%.


Friday
Chance Rain/Snow then Slight Chance Showers
High: 49°
A chance of rain and snow showers before 9am,
then a chance of rain showers.
Mostly cloudy with a high near 49.


Friday Night
Slight Chance Showers
Low: 35°
A slight chance of showers.
Mostly cloudy with a low around 35.


Saturday
Partly Sunny
High: 51°
Partly sunny with a high near 51.


Saturday Night
Mostly Cloudy then Slight Chance Showers
Low: 41°
A slight chance of showers.
Mostly cloudy with a low around 41.


Sunday
Partly Sunny
High: 61°
Partly sunny with a high near 61.


Sunday Night
Slight Chance Showers
Low: 43°
A slight chance of showers.
Mostly cloudy with a low around 43.


Monday
Partly Sunny
High: 59°
Partly sunny with a high near 59.


Source: National Weather Service








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