Risks of Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Fire Weather Concerns in Alaska and Southwest

An expansive storm system will bring widespread storms with a threat for flash flooding and severe weather to much of the central to eastern U.S. into early this week. Critical fire weather conditions are expected across interior Alaska this weekend. Elevated fire conditions also expected in the Southwest U.S.. Conditions will remain uncomfortably hot across the southern Plains and the Southeast. Read More >

Current conditions at

Big Timber Airport (K6S0)

Lat: 45.80647°NLon: 109.97826°WElev: 4494.0ft.

Overcast

55°F

13°C

Humidity 87%
Wind Speed WSW 13 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 21 Jun 12:15 AM MDT
Extended Forecast for

Melville MT

  • Overnight

    Overnight: A 20 percent chance of showers before 2am.  Cloudy, then gradually becoming partly cloudy, with a low around 51. West northwest wind 10 to 13 mph.

    Low: 51 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 73. West northwest wind 9 to 11 mph becoming north in the afternoon.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 47. North northwest wind 6 to 10 mph.  Chance of precipitation is 50%.

    Low: 47 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, then showers and possibly a thunderstorm after noon.  High near 63. North northeast wind 6 to 10 mph.  Chance of precipitation is 90%.

    High: 63 °F

    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight.  Partly cloudy, with a low around 42. North northeast wind 8 to 13 mph becoming light and variable  after midnight.  Chance of precipitation is 40%.

    Low: 42 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 70. Calm wind becoming east northeast 5 to 8 mph in the afternoon.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45. East northeast wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. Calm wind becoming east 5 to 8 mph in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49. East wind 5 to 9 mph becoming calm  after midnight.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers before 2am. Cloudy, then gradually becoming partly cloudy, with a low around 51. West northwest wind 10 to 13 mph.
Sunday
Sunny, with a high near 73. West northwest wind 9 to 11 mph becoming north in the afternoon.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 47. North northwest wind 6 to 10 mph. Chance of precipitation is 50%.
Monday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 63. North northeast wind 6 to 10 mph. Chance of precipitation is 90%.
Monday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 42. North northeast wind 8 to 13 mph becoming light and variable after midnight. Chance of precipitation is 40%.
Tuesday
Sunny, with a high near 70. Calm wind becoming east northeast 5 to 8 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 45. East northeast wind 5 to 10 mph becoming light and variable after midnight.
Wednesday
Mostly sunny, with a high near 75. Calm wind becoming east 5 to 8 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 49. East wind 5 to 9 mph becoming calm after midnight.
Thursday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79. Calm wind becoming east 5 to 7 mph in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 52. East wind 5 to 8 mph becoming light and variable after midnight.
Friday
Mostly sunny, with a high near 83. Light and variable wind becoming north northeast 6 to 11 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 53. East northeast wind 8 to 11 mph becoming west northwest after midnight.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 75. West wind 7 to 15 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Melville MT
 46.11°N 109.96°W (Elev. 5066 ft)
1:27 pm MDT Jun 20, 2026
12am MDT Jun 21, 2026-6pm MDT Jun 27, 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