• Tonight

    May 20

    Lo 42°

    Mostly cloudy

    Dust & Dander Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low

  • Tue

    May 21

    73°Lo 43°

    Warmer with clouds and sun

    Very High indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
    more

  • Wed

    May 22

    66°Lo 46°

    Not as warm with a t-storm

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
    more

  • Thu

    May 23

    58°Lo 42°

    A couple of showers

    Extreme indoor dust & dander levels
    • Precip
      63%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      70%
    more

  • Fri

    May 24

    71°Lo 40°

    A t-storm possible; warmer

    High indoor dust & dander levels
    • Precip
      30%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      67%
    more
Next Previous
Hi 63° RealFeel® 70° Precipitation 55%

Day

N

E

S

W

  • N 5 mph
  • Gusts: 14 mph

Cloudy this morning, then clouds and sunshine with a heavy thunderstorm late this afternoon

  • Max UV Index: 6 (High)
  • Thunderstorms: 60%
  • Precipitation: 0.27 in
  • Rain: 0.27 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 42° RealFeel® 38° Precipitation 9%

Night

N

E

S

W

  • S 6 mph
  • Gusts: 12 mph

Mostly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Great Falls Pollen Levels - May 20

  • Extreme
  • Very High
  • High
  • Moderate
  • Low

  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - May 20

more Historical Weather Data >
  Today Normal Record 5/20/2012
High 63° 69° N/A 74°
Low 42° 45° N/A 37°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:42 AM with 15:19 of sunlight, then sets at 9:01 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:54 PM with 11:33 of moolight, then sets at 3:27 AM

Smoke Alert: The Hidden Dangers of E-Cigarettes

May 20, 2013; 5:00 AM ET E-cigarette manufacturers claim the devices can help a person quit smoking but have those claims ever been proven?

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps