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

RUBY VALLEY (RBYM)

Lat: 45.345°NLon: 112.15028°WElev: 5250.0ft.

NA

54°F

12°C

Humidity 78%
Wind Speed SW 3 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 18 Aug 01:00 AM MDT
Extended Forecast for

7 Miles SSW Alder MT

  • Overnight

    Overnight: Mostly clear, with a low around 50. South southwest wind around 6 mph.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 85. South southwest wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 85 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Widespread haze between 11pm and 1am. Mostly clear, with a low around 53. South southwest wind 7 to 13 mph becoming northeast in the evening. Winds could gust as high as 20 mph.

    Low: 53 °F

    Haze

  • Tuesday

    Tuesday: Sunny, with a high near 91. South wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56. South southeast wind 9 to 14 mph, with gusts as high as 22 mph.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. South wind 6 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 22 mph.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51. West southwest wind 6 to 14 mph becoming north in the evening. Winds could gust as high as 21 mph.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 84. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 50. South southwest wind around 6 mph.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. South southwest wind 6 to 14 mph, with gusts as high as 23 mph.
Monday Night
Widespread haze between 11pm and 1am. Mostly clear, with a low around 53. South southwest wind 7 to 13 mph becoming northeast in the evening. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 91. South wind 6 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 56. South southeast wind 9 to 14 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 88. South wind 6 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 51. West southwest wind 6 to 14 mph becoming north in the evening. Winds could gust as high as 21 mph.
Thursday
Sunny, with a high near 84. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
A slight chance of showers. Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSW Alder MT
 45.23°N 112.14°W (Elev. 5604 ft)
8:43 pm MDT Aug 17, 2025
2am MDT Aug 18, 2025-6pm MDT Aug 24, 2025
 
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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