Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Mondell Field (KECS)

Lat: 43.89°NLon: 104.32°WElev: 4173ft.

Fair

61°F

16°C

Humidity 27%
Wind Speed SE 10 mph
Barometer 30.05 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 17 Oct 8:15 pm MDT
Extended Forecast for

Newcastle WY

  • Tonight

    Tonight: Mostly clear, with a low around 45. Calm wind becoming north around 5 mph after midnight.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66. North wind around 5 mph becoming calm.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. Light and variable wind becoming east around 6 mph.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 60. Light east wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. Southeast wind 5 to 9 mph, with gusts as high as 18 mph.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68. Light and variable wind.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 45. Calm wind becoming north around 5 mph after midnight.
Sunday
Sunny, with a high near 66. North wind around 5 mph becoming calm.
Sunday Night
Mostly clear, with a low around 41. Light and variable wind becoming east around 6 mph.
Monday
Sunny, with a high near 60. Light east wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Monday Night
Mostly clear, with a low around 46. Southeast wind 5 to 9 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 68. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Mostly sunny, with a high near 71.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 53.
Friday
A chance of rain. Partly sunny, with a high near 68.
Friday Night
A chance of rain. Mostly cloudy, with a low around 48. Breezy.
Saturday
A chance of rain. Partly sunny, with a high near 55. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WY
 43.86°N 104.21°W (Elev. 4380 ft)
5:41 pm MDT Oct 17, 2026
8pm MDT Oct 17, 2026-6pm MDT Oct 24, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database