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    • Today

      Dec 18

      49° /26°F
      Turning cloudy and milder
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Tue

      Dec 19

      35° /21°
      Colder; a bit of p.m. snow
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Dec 20

      22° /0°
      Colder with a bit of snow
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Dec 21

      27° /12°
      Mostly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Fri

      Dec 22

      15° /1°
      Colder with a bit of snow
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    49°Hi RealFeel® 37° Precipitation 25%
    Breezy this morning; otherwise, turning cloudy and milder
    • Winds from the
    • WNW 22 mph
    • Gusts: 40 mph
    • Max UV Index: 1 (Low)
    • Thunderstorms: 1%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    26°Lo RealFeel® 18° Precipitation 70%
    Overcast with a little snow, accumulating a coating to an inch
    • Winds from the
    • ENE 9 mph
    • Gusts: 17 mph
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • Precipitation: 0.07 in
    • Rain: 0 in
    • Snow: 0.9 in
    • Ice: 0 in
    • Hours of Precipitation: 5 hrs
    • Hours of Rain: 0 hrs

    Great Falls Pollen Levels Dec 18

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      Low

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 12/18/2016
    High 49° 34° 58° (1917) 24°
    Low 26° 14° -27° (1924)

    Sunrise/Sunset

    • Sunrise: 8:08 AM
    • Sunset: 4:35 PM
    • Duration: 8:27 hr

    Moonrise/Moonset

    • Moonrise: 8:12 AM
    • Moonset: 5:22 PM
    • Duration: 9:10 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps