Autumn Temperatures for Eastern Third of the Country; Developing Offshore Coastal Storm

Cooler and less humid conditions for most of the eastern third of the nation as high pressure dominates the weather pattern. Otherwise, rather tranquil weather for most of the nation for the end of the weekend into the start of this week. We continue to monitor a developing coastal storm offshore of the Carolinas; Coastal flooding and beach erosion possible along portions of the Mid-Atlantic. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

63°F

17°C

Humidity 32%
Wind Speed NE 9 mph
Barometer 30.19 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 18 Oct 12:35 pm MDT
Extended Forecast for

6 Miles NNW Nisland SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 66. North wind 7 to 9 mph becoming east. Winds could gust as high as 18 mph.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 37. East wind around 9 mph, with gusts as high as 16 mph.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 61. Breezy, with a southeast wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 61 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. Southeast wind 13 to 18 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 31 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 72. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 72 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. North wind 5 to 11 mph becoming west in the evening. Winds could gust as high as 17 mph.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 78. Breezy.

    High: 78 °F

    Mostly Sunny
    then Sunny
    and Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 66. North wind 7 to 9 mph becoming east. Winds could gust as high as 18 mph.
Tonight
Mostly clear, with a low around 37. East wind around 9 mph, with gusts as high as 16 mph.
Monday
Sunny, with a high near 61. Breezy, with a southeast wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph.
Monday Night
Mostly clear, with a low around 39. Southeast wind 13 to 18 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 31 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 72. Calm wind becoming northeast around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 42. North wind 5 to 11 mph becoming west in the evening. Winds could gust as high as 17 mph.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Mostly sunny, with a high near 78. Breezy.
Thursday Night
A slight chance of rain after midnight. Partly cloudy, with a low around 55. Breezy.
Friday
A chance of rain. Partly sunny, with a high near 74. Breezy.
Friday Night
A chance of rain. Mostly cloudy, with a low around 43. Breezy.
Saturday
Mostly sunny, with a high near 54. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Nisland SD
 44.75°N 103.63°W (Elev. 2900 ft)
12:31 pm MDT Oct 18, 2026
12pm MDT Oct 18, 2026-6pm MDT Oct 24, 2026
 
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Additional Resources

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