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      Elev 322 ft, 39.002 °N 77.201 °W

      Potomac, MD

      Wed, Oct 21, 2026
      Today
      Wed 10/21
      High 67°f
      2% Precip. / 0 in
      Plentiful sunshine. High 67F. Winds N at 5 to 10 mph.
      Tonight
      Wed 10/21
      Low 40°f
      4% Precip. / 0 in
      Clear skies. Low around 40F. Winds light and variable.
      Sunrise 7:24 AM
      Sunset 6:21 PM
      Moonrise 4:02 PM
      Moonset 2:23 AM
      Waxing Gibbous, 79% visible
      Hourly Forecast
      Now
      43°
      7AM
      43°
      7:24AM
      Sunrise
      8AM
      44°
      9AM
      48°
      10AM
      54°
      11AM
      58°
      12PM
      61°
      1PM
      63°
      2PM
      65°
      3PM
      66°
      4PM
      65°
      5PM
      64°
      6PM
      61°
      6:21PM
      Sunset
      7PM
      57°
      8PM
      53°
      9PM
      51°
      10PM
      49°
      11PM
      48°
      12AM
      47°
      1AM
      46°
      2AM
      45°
      3AM
      44°
      4AM
      42°
      5AM
      42°
      6AM
      41°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      7:00 am
      Clear
      43°F 40°F 2% 0in 2% 39°F 84% 5 mph N 30.26in
      8:00 am
      Sunny
      44°F 41°F 2% 0in 2% 39°F 82% 5 mph N 30.26in
      9:00 am
      Sunny
      48°F 46°F 1% 0in 2% 40°F 74% 5 mph N 30.27in
      10:00 am
      Sunny
      54°F 53°F 1% 0in 0% 40°F 59% 6 mph N 30.26in
      11:00 am
      Sunny
      58°F 57°F 0% 0in 0% 39°F 50% 7 mph N 30.25in
      12:00 pm
      Sunny
      61°F 60°F 0% 0in 5% 39°F 44% 7 mph N 30.22in
      1:00 pm
      Sunny
      63°F 63°F 0% 0in 0% 38°F 39% 8 mph N 30.19in
      2:00 pm
      Sunny
      65°F 65°F 0% 0in 1% 37°F 36% 8 mph N 30.17in
      3:00 pm
      Sunny
      66°F 66°F 0% 0in 2% 38°F 36% 8 mph NNW 30.14in
      4:00 pm
      Sunny
      65°F 65°F 0% 0in 1% 38°F 36% 9 mph NNW 30.12in
      5:00 pm
      Sunny
      64°F 64°F 0% 0in 13% 38°F 38% 8 mph N 30.12in
      6:00 pm
      Sunny
      61°F 61°F 0% 0in 4% 38°F 43% 6 mph NNW 30.11in
      7:00 pm
      Clear
      57°F 56°F 0% 0in 5% 39°F 51% 5 mph N 30.12in
      8:00 pm
      Clear
      53°F 53°F 1% 0in 2% 40°F 59% 4 mph N 30.13in
      9:00 pm
      Clear
      51°F 50°F 1% 0in 8% 40°F 64% 4 mph NNW 30.12in
      10:00 pm
      Clear
      49°F 49°F 1% 0in 3% 40°F 69% 4 mph NNW 30.12in
      11:00 pm
      Clear
      48°F 47°F 2% 0in 1% 40°F 72% 4 mph NNW 30.12in
      Additional Conditions
      1. Pressure 30.26 in
      2. Visibility 10 miles
      3. Clouds Clear
      4. Dew Point38°F
      5. Humidity 84%
      6. Rainfall 0 in
      7. Snow Depth 0 in
      KGAI Station History
      Almanac for October 21, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 67°F 64°F 84°F 1984
      4. Low 40°F 46°F 20°F 1917
      5. Rain/Snow Depth
      6. Precipitation 0 in - in -
      7. Snow 0 in - in -
      Almanac for October 22, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 69°F 64°F 84°F
      4. Low 40°F 46°F 20°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 7:24 AM 6:21 PM
      3. Civil Twilight 6:57 AM 6:48 PM
      4. Nautical Twilight 6:26 AM 7:19PM
      5. Astronomical Twilight 5:55 AM 7:50 PM
      1. Length of Visible Light 11h 51m
      2. Length of Day 10h 57m
      3. Tomorrow will be 2 minutes 23 seconds shorter
      1. Moon 4:02 PM 2:23 AM
      2. Waxing Gibbous79% of the Moon is Illuminated
      Oct 26
      Full Moon
      Nov 1
      Waning Half Last Qtr
      Nov 9
      New Moon
      Nov 17
      Waxing Half First Qtr
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
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      Level Access
      Glossary