Severe Thunderstorms for Mid-Atlantic and Northeast; Typhoon Approaching Guam

A cold front will sweep eastward today accompanied by strong to severe thunderstorms for the mid-Atlantic and Northeast today. In the wake of this cold front, autumn like temperatures and gusty winds from the Plains, Mississippi Valley, Great Lakes to most of the eastern seaboard. Fire weather conditions for lower Mississippi Valley into portions of California. For Guam, a typhoon is approaching. Read More >

Current conditions at

OLD FAITHFUL RANGER STATION (OFAW4)

Lat: 44.456667°NLon: 110.849444°WElev: 7332.0ft.

NA

24°F

-4°C

Humidity 100%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 17 Oct 03:15 AM MDT
Extended Forecast for

Lewis Lake WY

  • Overnight

    Overnight: Mostly clear, with a low around 28. South wind around 5 mph.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 55. Southwest wind 5 to 10 mph, with gusts as high as 23 mph.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28. Southwest wind around 6 mph becoming calm  in the evening.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 54. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27. Light and variable wind.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 54. Light and variable wind becoming south around 6 mph.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Partly cloudy, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 28. South wind around 5 mph.
Saturday
Mostly sunny, with a high near 55. Southwest wind 5 to 10 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 28. Southwest wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 54. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 27. Light and variable wind.
Monday
Sunny, with a high near 54. Light and variable wind becoming south around 6 mph.
Monday Night
Partly cloudy, with a low around 29. Calm wind.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 52.
Tuesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 31. Chance of precipitation is 30%.
Wednesday
A 20 percent chance of showers after noon. Partly sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Showers likely. Partly sunny, with a high near 54.
Thursday Night
Rain and snow showers. Mostly cloudy, with a low around 31.
Friday
Rain and snow showers. Snow level 9000 feet lowering to 8000 feet in the afternoon . Mostly cloudy, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewis Lake WY
 44.28°N 110.64°W (Elev. 7792 ft)
2:47 am MDT Oct 17, 2026
3am MDT Oct 17, 2026-6pm MDT Oct 23, 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