National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Mondell Field (KECS)

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

Fair

70°F

21°C

Humidity 33%
Wind Speed S 6 mph
Barometer 30.29 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 4 Oct 12:55 pm MDT
Extended Forecast for

Newcastle WY

  • This Afternoon

    This Afternoon: Sunny, with a high near 73. South wind around 8 mph.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 53. East wind 3 to 8 mph.

    Low: 53 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 80. Calm wind becoming west around 6 mph. Winds could gust as high as 15 mph.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. Calm wind becoming northeast 5 to 7 mph.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 52. Northeast wind around 6 mph becoming calm after midnight.

    Low: 52 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 73. South wind around 8 mph.
Tonight
Clear, with a low around 53. East wind 3 to 8 mph.
Monday
Sunny, with a high near 80. Calm wind becoming west around 6 mph. Winds could gust as high as 15 mph.
Monday Night
Mostly clear, with a low around 54. Calm wind becoming northeast 5 to 7 mph.
Tuesday
Sunny, with a high near 77. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Tuesday Night
Clear, with a low around 52. Northeast wind around 6 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WY
 43.86°N 104.18°W (Elev. 4642 ft)
Last Update:
12:31 pm MDT Oct 4, 2026
Forecast Valid:
1pm MDT Oct 4, 2026-6pm MDT Oct 10, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation