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

Heavy Rainfall and Flooding in the Mid-Atlantic; Heat and Wildfire Concerns in the West

Slow moving showers and thunderstorms may result in flash flooding for portions of the mid-Atlantic region through tonight. Meanwhile, excessive heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue for the West with dry and breezy conditions. Watching the tropics across the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

South Big Horn County Airport (KGEY)

Lat: 44.5174°NLon: 108.0752°WElev: 3934.0ft.

Clear

90°F

32°C

Humidity 16%
Wind Speed NW 17 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 14 Jul 07:53 PM MDT
Extended Forecast for

15 Miles NNE Hyattville WY

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a slight chance of showers after 1am. Mostly cloudy, with a low around 52. North wind 6 to 9 mph becoming southeast in the evening. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 9am. Mostly sunny, with a high near 67. East southeast wind 6 to 10 mph becoming west in the afternoon. Chance of precipitation is 50%.

    High: 67 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 45. Southwest wind 6 to 9 mph becoming northeast in the evening. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, then gradually becoming mostly sunny, with a high near 57. Southwest wind 6 to 10 mph becoming west northwest in the afternoon. Chance of precipitation is 70%.

    High: 57 °F

    Showers
    Likely then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 43. West northwest wind 6 to 10 mph becoming south after midnight.

    Low: 43 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 71. South wind 6 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: A 10 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 49. South wind 7 to 9 mph.

    Low: 49 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 71.

    High: 71 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers after 1am. Mostly cloudy, with a low around 52. North wind 6 to 9 mph becoming southeast in the evening. Chance of precipitation is 30%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 9am. Mostly sunny, with a high near 67. East southeast wind 6 to 10 mph becoming west in the afternoon. Chance of precipitation is 50%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 45. Southwest wind 6 to 9 mph becoming northeast in the evening. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, then gradually becoming mostly sunny, with a high near 57. Southwest wind 6 to 10 mph becoming west northwest in the afternoon. Chance of precipitation is 70%.
Wednesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 43. West northwest wind 6 to 10 mph becoming south after midnight.
Thursday
Sunny, with a high near 71. South wind 6 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
A 10 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 49. South wind 7 to 9 mph.
Friday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 71.
Friday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 73.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 51.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 74.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 51.
Monday
A slight chance of showers and thunderstorms. Sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NNE Hyattville WY
 44.45°N 107.46°W (Elev. 8691 ft)
Last Update:
7:13 pm MDT Jul 14, 2025
Forecast Valid:
8pm MDT Jul 14, 2025-6pm MDT Jul 21, 2025
 
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