• Mostly sunny 66°
    Hair Frizz Current Weather
    • Relative Humidity
      52%
    • Wind
      Speed
      4 mph
    • Dew
      Point
      48°
  • Tonight

    Jul 7

    Lo 48°

    A stray t-storm this evening

    Hair Frizz Weather
    • Wind
      Gust
      15 mph
    • Precip
      55%
    • Hours of Precip
      2.5
    Day Details >
  • Tomorrow

    Jul 8

    Hi 83°

    Nice with periods of sun

    Unlikely for hair frizz
    • Wind
      Gust
      10 mph
    • Precip
      11%
    • Hours of Precip
      0
    Day Details >
  • Thursday

    Jul 9

    Hi 88°

    Partly sunny

    Unlikely for hair frizz
    • Wind
      Gust
      8 mph
    • Precip
      10%
    • Hours of Precip
      0.5
    Day Details >
Next

Thunderstorms Friday evening

7/7 7/8 Now: 8:59pm
PM 8-12
  • 8pm Sunny 66° 43%
  • 9pm Mostly sunny 65° 47%
  • 10pm Partly cloudy w/ t-storms 60° 51%
  • 11pm Partly cloudy 58° 18%
  • 12am Intermittent clouds 57° 14%
AM 7-12
  • 7am Partly sunny 54° 12%
  • 8am Partly sunny 58° 0%
  • 9am Partly sunny 62° 0%
  • 10am Partly sunny 66° 0%
  • 11am Partly sunny 70° 0%
  • 12pm Partly sunny 73° 0%
PM 1-6
  • 1pm Partly sunny 76° 0%
  • 2pm Partly sunny 78° 1%
  • 3pm Partly sunny 79° 1%
  • 4pm Partly sunny 80° 1%
  • 5pm Partly sunny 81° 1%
  • 6pm Partly sunny 83° 1%
Hourly Forecast >
Jul 07, 2015; 1:30 PM ET
Five-day Weather Forecast for Great Falls, MT
Great Falls, MT Weather Forecast

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The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Tue. Hair Frizz

Tue. Wind Maps

Tue. UV Index