Great Falls, MD Weather

    22:00 Monday
    Partly cloudy
    Partly cloudy
    20° Feels like 20°
    First Quarter First Quarter Illuminated: 72%
    reloj Hourly Risk of fog for the next few hours
    • Today 25 May Light rain with partly cloudy skies 90% 6.9 mm 24° / 15° Gentle southeast wind 10 - 19 km/h
    • Tomorrow 26 May Light rain with cloudy skies 80% 0.6 mm 25° / 18° Gentle southeast wind 8 - 18 km/h
    • Wednesday 27 May Light rain with partly cloudy skies 80% 11 mm 26° / 19° Moderate northwest wind 13 - 31 km/h
    • Thursday 28 May Light rain with partly cloudy skies 70% 3.2 mm 23° / 15° Moderate north wind 18 - 39 km/h
    • Friday 29 May Clear 23° / 11° Moderate west wind 9 - 24 km/h
    • Saturday 30 May Scattered clouds 23° / 14° Moderate north wind 16 - 37 km/h
    • Sunday 31 May Scattered clouds 21° / 9° Moderate southeast wind 9 - 27 km/h

    Weather Forecast for Great Falls, MD Today

    , 25 May

    Tomorrow

    , 26 May
    17:00 Light rain with partly cloudy skies 60% 0.051 mm 23° Light rain
    Feels Like 22°
    Gentle east wind East 6 - 14 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 60% 0.051 mm
    • Humidity Humidity 89%
    • Dew Point Dew Point 21 °C
    • Clouds Clouds 91%
    • Feels Like Feels Like 22 °C
    • Visibility Visibility 5 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 14 km/h
    • Snowline Snowline 13780 ft
    18:00 Light rain with partly cloudy skies 60% 0.035 mm 23° Light rain
    Feels Like 21°
    Gentle east wind East 6 - 13 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 60% 0.035 mm
    • Humidity Humidity 93%
    • Dew Point Dew Point 21 °C
    • Clouds Clouds 94%
    • Feels Like Feels Like 21 °C
    • Visibility Visibility 5 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Snowline Snowline 13451 ft
    19:00 Light rain with partly cloudy skies 40% 0.016 mm 22° Light rain
    Feels Like 19°
    Gentle east wind East 6 - 13 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 40% 0.016 mm
    • Humidity Humidity 95%
    • Dew Point Dew Point 21 °C
    • Clouds Clouds 81%
    • Feels Like Feels Like 19 °C
    • Visibility Visibility 5 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Snowline Snowline 13780 ft
    20:00 Light rain with partly cloudy skies 30% 0.02 mm 21° Light rain
    Feels Like 21°
    Gentle southeast wind Southeast 5 - 12 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 30% 0.02 mm
    • Humidity Humidity 97%
    • Dew Point Dew Point 21 °C
    • Clouds Clouds 76%
    • Feels Like Feels Like 21 °C
    • Visibility Visibility 5 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 12 km/h
    • Snowline Snowline 14108 ft
    21:00 Light rain with partly cloudy skies 30% 0.008 mm 20° Light rain
    Feels Like 20°
    Gentle east wind East 5 - 10 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 30% 0.008 mm
    • Humidity Humidity 98%
    • Dew Point Dew Point 20 °C
    • Clouds Clouds 67%
    • Feels Like Feels Like 20 °C
    • Visibility Visibility 7 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 10 km/h
    • Snowline Snowline 14108 ft
    22:00 Partly cloudy 20° Partly cloudy
    Feels Like 20°
    Gentle east wind East 5 - 9 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 20% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 20 °C
    • Clouds Clouds 93%
    • Feels Like Feels Like 20 °C
    • Visibility Visibility 7 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 9 km/h
    • Snowline Snowline 14108 ft
    23:00 Partly cloudy 20° Partly cloudy
    Feels Like 20°
    Gentle east wind East 4 - 9 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 10% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 19 °C
    • Clouds Clouds 96%
    • Feels Like Feels Like 20 °C
    • Visibility Visibility 7 km
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 9 km/h
    • Snowline Snowline 14108 ft
    24:00 Overcast 20° Overcast
    Feels Like 20°
    Gentle east wind East 6 - 10 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 10% 0 mm
    • Humidity Humidity 100%
    • Dew Point Dew Point 20 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 20 °C
    • Visibility Visibility 5 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 10 km/h
    • Snowline Snowline 14108 ft

    Air quality in Great Falls today

    Detail
    33
    Fair O₃ (82 µg/m³)

    Sunrise and Sunset

    Sunrise 05:48 Sunset 20:23
    First light 05:17 Midday 13:05 Last light 20:54
    Day length 14h 35m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    25 First Quarter
    26 First Quarter
    27 First Quarter
    28 First Quarter
    29 Full Moon
    30 Full Moon
    31 Full Moon
    1 Full Moon
    2 Last Quarter
    3 Last Quarter
    4 Last Quarter
    5 Last Quarter
    6 Last Quarter
    7 Last Quarter

    What is the weather like in Great Falls, MD in May?

    • Avg. Temp.
      Avg. Temp.: 18 °C Max.: 36 °C Min: 2 °C
    • Rainy Days
      Rainy Days: 12 days
    • Accumulated Rainfall
      Accumulated Rainfall: 100 mm
    • Average Wind Speed
      Average Wind Speed: 10 km/h

    Weather graphs

    Maximum Minimum Rainfall

    Videos

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