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    • Today

      May 22

      68° /45°F
      Clouds and sun
      • 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: Moderate
    • Tue

      May 23

      79° /55°
      Mostly sunny and warmer
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Wed

      May 24

      63° /42°
      Very windy; cooler
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Thu

      May 25

      58° /40°
      Mostly cloudy and breezy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Fri

      May 26

      61° /39°
      A few showers in the morning
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More

    Day

    68°Hi RealFeel® 74° Precipitation 25%
    Intervals of clouds and sunshine
    • N 6 mph
    • Gusts: 12 mph
    • Max UV Index: 6 (High)
    • Thunderstorms: 9%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    45°Lo RealFeel® 39° Precipitation 6%
    Patchy clouds
    • SSW 8 mph
    • Gusts: 12 mph
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • 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 22

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

      Moderate

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 5/22/2016
    High 68° 66° 97° (1919) 57°
    Low 45° 40° 29° (1992) 40°

    Sunrise/Sunset

    • Sunrise: 5:40 AM
    • Sunset: 9:04 PM
    • Duration: 15:24 hr

    Moonrise/Moonset

    • Moonrise: 4:13 AM
    • Moonset: 5:10 PM
    • Duration: 12:57 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps