Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

FISHTAIL (FSLM8)

Lat: 45.45806°NLon: 109.57139°WElev: 4550.0ft.

NA

74°F

23°C

Humidity 19%
Wind Speed NW 6 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 19 Aug 08:22 PM MDT
Extended Forecast for

3 Miles W Fishtail MT

  • Tonight

    Tonight: Mostly clear, with a low around 58. West wind 5 to 8 mph.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 92. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 92 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63. North wind around 7 mph becoming southwest in the evening.

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: Sunny and hot, with a high near 91. Calm wind becoming northeast 5 to 8 mph in the afternoon.

    High: 91 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. East northeast wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 86. Calm wind becoming south around 6 mph in the afternoon.

    High: 86 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 61. Southwest wind around 7 mph.

    Low: 61 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 88. Light southwest wind becoming west 5 to 10 mph in the afternoon.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59. West southwest wind 5 to 9 mph.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 58. West wind 5 to 8 mph.
Thursday
Sunny and hot, with a high near 92. Calm wind becoming north northwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 63. North wind around 7 mph becoming southwest in the evening.
Friday
Sunny and hot, with a high near 91. Calm wind becoming northeast 5 to 8 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 62. East northeast wind 5 to 10 mph becoming light and variable after midnight.
Saturday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 86. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 61. Southwest wind around 7 mph.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. Light southwest wind becoming west 5 to 10 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 59. West southwest wind 5 to 9 mph.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. Calm wind becoming east northeast around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 58. Northeast wind 5 to 8 mph becoming southwest in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Calm wind becoming east northeast around 6 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. East wind around 7 mph becoming southwest after midnight.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming east around 6 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Fishtail MT
 45.46°N 109.58°W (Elev. 5000 ft)
4:17 pm MDT Aug 19, 2026
9pm MDT Aug 19, 2026-6pm MDT Aug 26, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database