Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

Mondell Field (KECS)

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

Mostly Cloudy

86°F

30°C

Humidity 25%
Wind Speed E 8 mph
Barometer 30.00 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 16 Aug 2:55 pm MDT
Extended Forecast for

19 Miles SSE Newcastle WY

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Partly sunny, with a high near 90. Southwest wind around 10 mph becoming north. Winds could gust as high as 15 mph.

    High: 90 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 64. East wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 64 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 3pm.  Sunny, with a high near 92. Northeast wind 5 to 10 mph becoming southwest in the morning.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 62. Northeast wind 5 to 10 mph.

    Low: 62 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 92. Northeast wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 92 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. East wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Northeast wind 5 to 10 mph becoming southeast in the morning. Winds could gust as high as 20 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 65. East wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 90. Southwest wind around 10 mph becoming north. Winds could gust as high as 15 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 64. East wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 92. Northeast wind 5 to 10 mph becoming southwest in the morning.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 62. Northeast wind 5 to 10 mph.
Monday
Sunny, with a high near 92. Northeast wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 62. East wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 93. Northeast wind 5 to 10 mph becoming southeast in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Clear, with a low around 65. East wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 96.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Sunny, with a high near 95.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 63.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles SSE Newcastle WY
 43.61°N 104.07°W (Elev. 3947 ft)
2:10 pm MDT Aug 16, 2025
3pm MDT Aug 16, 2025-6pm MDT Aug 23, 2025
 
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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