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    • Tonight

      Sep 24

      34° Lo
      Mainly clear
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Sep 25

      61° /40°F
      Partly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Tue

      Sep 26

      64° /42°
      Periods of clouds and sun
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Wed

      Sep 27

      65° /40°
      Periods of clouds and sun
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Thu

      Sep 28

      68° /44°
      Plenty of sunshine
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More

    Day

    61°Hi RealFeel® 69° Precipitation 2%
    Partly sunny
    • Winds from the
    • SW 7 mph
    • Gusts: 10 mph
    • Max UV Index: 13 (Extreme)
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    40°Lo RealFeel® 34° Precipitation 25%
    Partly cloudy
    • Winds from the
    • SSW 8 mph
    • Gusts: 12 mph
    • Max UV Index: N/A
    • Thunderstorms: 1%
    • 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 Sep 25

    • 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 9/25/2016
    High 61° 66° 93° (2001) 70°
    Low 40° 39° 17° (1934) 39°

    Sunrise/Sunset

    • Sunrise: 7:16 AM
    • Sunset: 7:17 PM
    • Duration: 12:01 hr

    Moonrise/Moonset

    • Moonrise: 12:48 PM
    • Moonset: 10:29 PM
    • Duration: 9:41 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps