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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Big Timber Airport (K6S0)

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

Overcast

66°F

19°C

Humidity 63%
Wind Speed SW 11 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 17 Aug 07:45 PM MDT
Extended Forecast for

Melville MT

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 54. West wind 6 to 8 mph. Chance of precipitation is 50%.

    Low: 54 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 84. West wind 5 to 10 mph becoming east northeast in the morning.

    High: 84 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 58. Southwest wind 6 to 8 mph becoming northwest in the evening.

    Low: 58 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 91. South southwest wind 5 to 9 mph.

    High: 91 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. East southeast wind 7 to 9 mph becoming west northwest after midnight.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 91. West wind 8 to 13 mph.

    High: 91 °F

    Hot

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 57. West northwest wind around 11 mph.

    Low: 57 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 81. West northwest wind 6 to 9 mph becoming north in the afternoon.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. Northeast wind 7 to 11 mph.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 54. West wind 6 to 8 mph. Chance of precipitation is 50%.
Monday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 84. West wind 5 to 10 mph becoming east northeast in the morning.
Monday Night
A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 58. Southwest wind 6 to 8 mph becoming northwest in the evening.
Tuesday
Sunny and hot, with a high near 91. South southwest wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 60. East southeast wind 7 to 9 mph becoming west northwest after midnight.
Wednesday
Sunny and hot, with a high near 91. West wind 8 to 13 mph.
Wednesday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 57. West northwest wind around 11 mph.
Thursday
Sunny, with a high near 81. West northwest wind 6 to 9 mph becoming north in the afternoon.
Thursday Night
Mostly clear, with a low around 53. Northeast wind 7 to 11 mph.
Friday
Sunny, with a high near 75. North wind 6 to 10 mph becoming east in the afternoon.
Friday Night
Mostly clear, with a low around 49. East northeast wind 6 to 13 mph.
Saturday
Sunny, with a high near 76. West wind 5 to 10 mph becoming east in the morning.
Saturday Night
Partly cloudy, with a low around 50. East wind 6 to 11 mph becoming northwest after midnight.
Sunday
Mostly sunny, with a high near 78. West northwest wind 5 to 10 mph becoming east southeast in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Melville MT
 46.11°N 109.99°W (Elev. 5187 ft)
Last Update:
7:53 pm MDT Aug 17, 2025
Forecast Valid:
8pm MDT Aug 17, 2025-6pm MDT Aug 24, 2025
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation