Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

65°F

18°C

Humidity 60%
Wind Speed N 0 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 15 Aug 11:53 PM MDT
Extended Forecast for

4 Miles N Greybull/S Big Horn Airport WY

  • Overnight

    Overnight: Partly cloudy, with a low around 56. Light and variable wind becoming east southeast around 6 mph.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm.  Sunny, with a high near 81. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 81 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 9pm.  Partly cloudy, with a low around 57. West northwest wind around 6 mph becoming light and variable  after midnight.

    Low: 57 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 82. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 9pm, then a chance of showers after midnight.  Mostly cloudy, with a low around 59. East northeast wind 5 to 7 mph becoming north in the evening.  Chance of precipitation is 40%.

    Low: 59 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 78. Light and variable wind becoming north northwest 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 55. North northwest wind 5 to 8 mph.

    Low: 55 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 56. Light and variable wind becoming east southeast around 6 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 81. Calm wind becoming north northwest around 6 mph in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 9pm. Partly cloudy, with a low around 57. West northwest wind around 6 mph becoming light and variable after midnight.
Monday
Mostly sunny, with a high near 82. Calm wind becoming northeast around 6 mph in the afternoon.
Monday Night
A slight chance of showers and thunderstorms before 9pm, then a chance of showers after midnight. Mostly cloudy, with a low around 59. East northeast wind 5 to 7 mph becoming north in the evening. Chance of precipitation is 40%.
Tuesday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 78. Light and variable wind becoming north northwest 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 30%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55. North northwest wind 5 to 8 mph.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 88.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Greybull/S Big Horn Airport WY
 44.58°N 108.08°W (Elev. 4800 ft)
11:32 pm MDT Aug 15, 2026
12am MDT Aug 16, 2026-6pm MDT Aug 22, 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