Heat Wave Continues in the Northeastern Quarter of the U.S.; Excessive Rain May Bring Flooding in the North Central U.S.

The heat wave is expected to peak in the eastern Great Lakes and New England today, and the Ohio Valley and Mid-Atlantic Friday into the weekend. Widespread daily record high temperatures are likely. Heavy to excessive rainfall will be associated with thunderstorms forecast to move across parts of the northern Plains and Upper Midwest today into Friday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

Lat: 44.48°NLon: 103.78°WElev: 3898ft.

Fair

55°F

13°C

Humidity	77%
Wind Speed	E 5 mph
Barometer	30.21 in
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Wind Chill	54°F (12°C)
Last update	20 Jun 7:35 am MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

5 Miles SW Nemo SD

Today
High: 64 °F
Isolated
Showers then
Isolated
T-storms
Tonight
Low: 48 °F
Chance
T-storms and
Patchy Fog
Friday
High: 66 °F
Chance
T-storms and
Areas Fog
Friday Night
Low: 50 °F
Showers
Likely then
Chance
T-storms
Saturday
High: 77 °F
Sunny then
Chance
T-storms
Saturday Night
Low: 51 °F
Mostly Clear
Sunday
High: 84 °F
Sunny
Sunday Night
Low: 59 °F
Mostly Clear
Monday
High: 90 °F
Sunny

Detailed Forecast

Today

Isolated showers, with thunderstorms also possible after noon. Partly sunny, with a high near 64. Southeast wind 3 to 7 mph. Winds could gust as high as 16 mph. Chance of precipitation is 20%.

Tonight

A 40 percent chance of showers and thunderstorms, mainly between 9pm and 3am. Patchy fog after 8pm. Otherwise, cloudy, with a low around 48. East wind around 6 mph becoming calm in the evening.

Friday

A 40 percent chance of showers and thunderstorms, mainly after noon. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 66. Calm wind becoming east around 6 mph in the morning.

Friday Night

Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 50. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.

Saturday

A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 77. Light and variable wind becoming north 5 to 7 mph in the morning. Winds could gust as high as 20 mph.

Saturday Night

Mostly clear, with a low around 51. Northeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 16 mph.

Sunday

Sunny, with a high near 84. Calm wind becoming southeast 5 to 8 mph in the morning. Winds could gust as high as 24 mph.

Sunday Night

Mostly clear, with a low around 59. Southeast wind around 7 mph becoming southwest after midnight. Winds could gust as high as 23 mph.

Monday

Sunny, with a high near 90.

Monday Night

A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 55.

Tuesday

A slight chance of showers and thunderstorms. Sunny, with a high near 82.