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

Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley Thursday afternoon and evening. Large hail and strong winds are the primary threats. Read More >

Current conditions at

Mondell Field (KECS)

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

Fair

30°F

-1°C

Humidity 59%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 9 Apr 6:55 am MDT
Extended Forecast for

Newcastle WY

  • Today

    Today: Sunny, with a high near 61. East wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 30. North wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 17 mph.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 59. Breezy, with a light southeast wind increasing to 15 to 20 mph in the morning. Winds could gust as high as 33 mph.

    High: 59 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 43. Breezy, with a southeast wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 32 mph.

    Low: 43 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 78. Southeast wind 6 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before midnight. Partly cloudy, with a low around 46. Southwest wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 46 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 71. West wind 6 to 16 mph, with gusts as high as 28 mph.

    High: 71 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers before midnight. Mostly cloudy, with a low around 43. West wind 5 to 13 mph becoming south after midnight. Winds could gust as high as 23 mph.

    Low: 43 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Showers likely, mainly after noon. Partly sunny, with a high near 63.

    High: 63 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 61. East wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Tonight
Mostly clear, with a low around 30. North wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 17 mph.
Friday
Partly sunny, with a high near 59. Breezy, with a light southeast wind increasing to 15 to 20 mph in the morning. Winds could gust as high as 33 mph.
Friday Night
Mostly cloudy, with a low around 43. Breezy, with a southeast wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 32 mph.
Saturday
Mostly sunny, with a high near 78. Southeast wind 6 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph.
Saturday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 46. Southwest wind 6 to 13 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 71. West wind 6 to 16 mph, with gusts as high as 28 mph.
Sunday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 43. West wind 5 to 13 mph becoming south after midnight. Winds could gust as high as 23 mph.
Monday
Showers likely, mainly after noon. Partly sunny, with a high near 63.
Monday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 34.
Tuesday
Rain and snow showers likely. Mostly cloudy, with a high near 50.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 31.
Wednesday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WY
 43.86°N 104.21°W (Elev. 4380 ft)
Last Update:
6:36 am MDT Apr 9, 2026
Forecast Valid:
7am MDT Apr 9, 2026-6pm MDT Apr 15, 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