Heavy rain and isolated severe storms in portions of the West

A storm system will bring rain and thunderstorms to much of the Intermountain West and northern High Plains on Friday. Isolated severe thunderstorms with large hail and damaging winds are possible from northeast California to Wyoming. Heavy rain could lead to flash flooding, especially in the mountains of Wyoming.
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Current conditions at

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874ft.

Fair

53°F

12°C

Humidity 59%
Wind Speed NW 14 MPH
Barometer 30.10 in (1018.3 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 06 May 2:53 am MDT
Extended Forecast for

10 Miles ENE East Helena MT

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 45. North northwest wind around 10 mph.

    Chance
    Showers

    Low: 45 °F

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 62. North northeast wind 8 to 13 mph.

    Chance
    Showers

    High: 62 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers before midnight.  Mostly cloudy, with a low around 40. Northeast wind 6 to 11 mph.

    Slight Chance
    Showers then
    Mostly Cloudy

    Low: 40 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 72. North northeast wind 5 to 10 mph becoming east southeast in the afternoon.

    Mostly Sunny

    High: 72 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 42. East southeast wind around 7 mph.

    Mostly Clear

    Low: 42 °F

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 74.

    Sunny then
    Chance
    Showers

    High: 74 °F

  • Sunday
    Night

    Sunday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 43. Chance of precipitation is 50%.

    Chance
    T-storms then
    Chance
    Showers

    Low: 43 °F

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 57.

    Chance
    Showers

    High: 57 °F

  • Monday
    Night

    Monday Night: A chance of showers and thunderstorms before midnight, then a chance of rain after midnight.  Mostly cloudy, with a low around 36.

    Chance
    Showers

    Low: 36 °F

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 45. North northwest wind around 10 mph.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 62. North northeast wind 8 to 13 mph.
Friday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 40. Northeast wind 6 to 11 mph.
Saturday
Mostly sunny, with a high near 72. North northeast wind 5 to 10 mph becoming east southeast in the afternoon.
Saturday Night
Mostly clear, with a low around 42. East southeast wind around 7 mph.
Sunday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 43. Chance of precipitation is 50%.
Monday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 57.
Monday Night
A chance of showers and thunderstorms before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 36.
Tuesday
A chance of rain before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 55.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 35.
Wednesday
A slight chance of showers. Partly sunny, with a high near 60.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 36.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 64.
Click Map For Forecast
Point Forecast:
10 Miles ENE East Helena MT
 46.65°N 111.75°W (Elev. 3862 ft)
2:54 am MDT May 6, 2016
4am MDT May 6, 2016-6pm MDT May 12, 2016
 
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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