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      Elev 187 ft, 39.009 °N 76.887 °W

      Greenbelt, MD

      Springhill Lake Station
      Updated: 7:48 PM EDT on August 19, 2026 (GMT -4)
      20 seconds ago
      91°
      64°
      85
      Feels Like 90
      Fair
      N
      3
      Similar temperature is expected tomorrow
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Tonight
      Wed 08/19
      Low 71°f
      24% Precip. / 0 in
      Mainly clear. Low 71F. Winds light and variable.
      Tomorrow
      Thu 08/20
      High 89°f
      77% Precip. / 0.63 in
      Mostly cloudy skies during the morning hours followed by strong thunderstorms in the afternoon. High 89F. Winds SSE at 5 to 10 mph. Chance of rain 80%.
      Tomorrow night
      Thu 08/20
      Low 66°f
      35% Precip. / 0.02 in
      Scattered thunderstorms, some strong during the evening, then cloudy skies overnight. Low 66F. Winds light and variable. Chance of rain 40%.
      Hourly Forecast
      Now
      84°
      7:57PM
      Sunset
      8PM
      83°
      9PM
      81°
      10PM
      79°
      11PM
      76°
      12AM
      75°
      1AM
      74°
      2AM
      73°
      3AM
      73°
      4AM
      72°
      5AM
      72°
      6AM
      72°
      6:25AM
      Sunrise
      7AM
      72°
      8AM
      75°
      9AM
      79°
      10AM
      81°
      11AM
      82°
      12PM
      85°
      1PM
      86°
      2PM
      35%
      87°
      3PM
      55%
      88°
      4PM
      77%
      87°
      5PM
      54%
      79°
      6PM
      35%
      79°
      7PM
      35%
      77°
      Precipitation
      77%
      Pollen
      Grass Pollen
      Low
      Air Quality
      49
      Good
      UV Index
      0
      Low
      Additional Conditions
      1. Pressure 29.93 in
      2. Visibility 10 miles
      3. Clouds Clear
      4. Dew Point64°F
      5. Humidity 52%
      6. Rainfall 0 in
      7. Snow Depth 0 in
       KCGS Station History
      Almanac for August 19, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 91°F 86°F 95°F 2002
      4. Low 64°F 66°F 47°F 1953
      5. Rain/Snow Depth
      6. Precipitation 0 in 4.1 in -
      7. Snow 0 in 0 in -
      Almanac for August 20, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 89°F 86°F 95°F
      4. Low 64°F 66°F 46°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:24 AM 7:56 PM
      3. Civil Twilight 5:56 AM 8:25 PM
      4. Nautical Twilight 5:22 AM 8:58PM
      5. Astronomical Twilight 4:46 AM 9:34 PM
      1. Length of Visible Light 14h 28m
      2. Length of Day 13h 32m
      3. Tomorrow will be 2 minutes 18 seconds shorter
      1. Moon 1:53 PM 11:20 PM
      2. First Quarter46% of the Moon is Illuminated
      Aug 19
      Waxing Half First Qtr
      Aug 28
      Full Moon
      Sep 4
      Waning Half Last Qtr
      Sep 10
      New Moon
      Precipitation
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