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| Today | Tonight | Sunday | Monday | Tuesday | Wednesday | Thursday | Friday |
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| High: 84°F | Low: 67°F | High: 89°F | High: 92°F | High: 94°F | High: 95°F | High: 93°F | High: 87°F |
| Low: 72°F | Low: 73°F | Low: 75°F | Low: 76°F | Low: 72°F | |||
| Mostly Sunny | Mostly Clear | Thunderstorms | Partly Sunny | Mostly Sunny | Thunderstorms | Thunderstorms | Thunderstorms |
Current Conditions at
WASHINGTON - (KDCA)
WASHINGTON - (KDCA)
82°
Partly Cloudy
as of 6:52 PM EDST
Rel. Humidity: 69%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: VFR
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: VFR
Wind Data
8 MPH
230° Southwest
8 MPH
230° Southwest
Cloud Level(s): Few at 3400ft, Few at 15000ft, Scattered at 25000ft
Current Conditions at
FORT BELVOIR - (KDAA)
FORT BELVOIR - (KDAA)
75°
Clear
as of 6:55 PM EDST
Rel. Humidity: 94%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.85 in.
Flight Rule: VFR
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.85 in.
Flight Rule: VFR
Wind Data
Calm
Calm
Cloud Level(s): Clear
Current Conditions at
WASH-DULLES - (KIAD)
WASH-DULLES - (KIAD)
82°
Mostly Cloudy
as of 6:52 PM EDST
Rel. Humidity: 69%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
6 MPH
130° Southeast
6 MPH
130° Southeast
Cloud Level(s): Scattered Towering Cumulus at 4400ft, Scattered at 5500ft, Broken at 15000ft
Current Conditions at
MANASSAS - (KHEF)
MANASSAS - (KHEF)
84°
Mostly Cloudy
as of 6:56 PM EDST
Rel. Humidity: 70%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
5 MPH
160° South
5 MPH
160° South
Cloud Level(s): Scattered at 4100ft, Broken at 5000ft, Broken at 7000ft
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Today... Mostly sunny, with a high near 84. Northeast wind around 6 mph becoming southeast in the afternoon. |
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Tonight... Mostly clear, with a low around 67. Southeast wind 3 to 6 mph. |
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Sunday... A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. South wind 5 to 9 mph. Chance of precipitation is 20%. |
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Sunday Night... Partly cloudy, with a low around 72. South wind around 6 mph. |
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Monday... Partly sunny, with a high near 92. Northwest wind 3 to 6 mph. |
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Monday Night... A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 20%. |
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Tuesday... Mostly sunny, with a high near 94. |
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Tuesday Night... A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 20%. |
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Wednesday... A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 20%. |
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Wednesday Night... A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Partly cloudy, with a low around 76. Chance of precipitation is 30%. |
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Thursday... A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 30%. |
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Thursday Night... A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%. |
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Friday... A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 20%. |
Virginia's Warnings, Watches, and Advisories
Current Radar Image
Civil Rise to Set: 13 Hours 25 Minutes
Nautical Rise to Set: 14 Hours 29 Minutes
Astro Rise to Set: 15 Hours 33 Minutes
Click for yearly Sun Almanac for Greenway Downs
Current Radar Image
Sun Almanac for Greenway Downs, Virginia
Astronomical Sunrise 05:18 AMAstronomical sunrise occurs when the Sun is 18° below the horizon and the sky begins to brighten from a completly darkened state.
Nautical Sunrise 05:50 AMNautical sunrise (or nautical dawn) is the precise moment when the sun's center is 12° below the horizon in the morning. It marks the beginning of nautical twilight, allowing pilots/mariners to see the horizon.
Civil Sunrise 06:22 AMCivil sunrise is the moment in the morning when the sun's center is 6° below the horizon. It marks the start of morning civil twilight, providing enough natural light for most, outdoor activities without artificial lighting. It typically occurs roughly 20-30 minutes before actual sunrise.
Sunrise 06:49 AMSunrise (or sunup) is the moment when the upper rim of the Sun appears on the horizon in the morning. It marks the end of the twilight phase, often accompanied by distinct atmospheric colors.
Daylight: 12 Hours 31 MinutesDaylight hours are the period of time between local sunrise and sunset, representing the daily portion of sunlight. These hours change in length based on season, Earth's tilt, and latitude.
Sunset 7:20 PMThe sunset is defined in astronomy as the moment the upper limb of the Sun disappears below the horizon. It marks the end of daylight and is often accompanied by distinct atmospheric colors. It also signals the beginning of twilight.
Civil Sunset 7:47 PMCivil sunset (or evening civil twilight) occurs when the center of the sun is 6° below the horizon, marking the end of the brightest twilight phase. It typically occurs roughly 20-30 minutes after sunset, providing enough light for most outdoor activities to continue without artificial light.
Nautical Sunset 8:19 PMNautical sunset occurs when the sun's center is 12° below the horizon, marking the end of nautical twilight. This phase, following civil twilight, allows the horizon to remain visible, enabling mariners to take accurate star sights for navigation. The sky is dark, but some ambient light remains
Astronomical Sunset 8:51 PMAstronomical sunrise occurs when the Sun drops to 18° below the horizon. This causes the sky to enter a completly darkened state.
Nautical Sunrise 05:50 AMNautical sunrise (or nautical dawn) is the precise moment when the sun's center is 12° below the horizon in the morning. It marks the beginning of nautical twilight, allowing pilots/mariners to see the horizon.
Civil Sunrise 06:22 AMCivil sunrise is the moment in the morning when the sun's center is 6° below the horizon. It marks the start of morning civil twilight, providing enough natural light for most, outdoor activities without artificial lighting. It typically occurs roughly 20-30 minutes before actual sunrise.
Sunrise 06:49 AMSunrise (or sunup) is the moment when the upper rim of the Sun appears on the horizon in the morning. It marks the end of the twilight phase, often accompanied by distinct atmospheric colors.
Daylight: 12 Hours 31 MinutesDaylight hours are the period of time between local sunrise and sunset, representing the daily portion of sunlight. These hours change in length based on season, Earth's tilt, and latitude.
Sunset 7:20 PMThe sunset is defined in astronomy as the moment the upper limb of the Sun disappears below the horizon. It marks the end of daylight and is often accompanied by distinct atmospheric colors. It also signals the beginning of twilight.
Civil Sunset 7:47 PMCivil sunset (or evening civil twilight) occurs when the center of the sun is 6° below the horizon, marking the end of the brightest twilight phase. It typically occurs roughly 20-30 minutes after sunset, providing enough light for most outdoor activities to continue without artificial light.
Nautical Sunset 8:19 PMNautical sunset occurs when the sun's center is 12° below the horizon, marking the end of nautical twilight. This phase, following civil twilight, allows the horizon to remain visible, enabling mariners to take accurate star sights for navigation. The sky is dark, but some ambient light remains
Astronomical Sunset 8:51 PMAstronomical sunrise occurs when the Sun drops to 18° below the horizon. This causes the sky to enter a completly darkened state.
Civil Rise to Set: 13 Hours 25 Minutes
Nautical Rise to Set: 14 Hours 29 Minutes
Astro Rise to Set: 15 Hours 33 Minutes
Click for yearly Sun Almanac for Greenway Downs
Moon Almanac for Greenway Downs, Virginia
Moon Phase: Waxing Crescent
Moon Illumination: 9%
Moon Age: 2.89 Days
Moon Illumination: 9%
Moon Age: 2.89 Days
Moon is currently above the horizon
Distance from Moon to Earth: 244,119 miles
Distance from Moon to Earth: 244,119 miles
| Upcoming Lunar Events for Greenway Downs: | ||
| Next Event | Event Time | Illum |
| Moonset: | 08:21 pm Sun | 9.2% |
| Moonrise: | 10:34 am Mon | 13.1% |
| High Moon: | 03:45 pm Mon | 14.6% |
| Moonset: | 08:48 pm Mon | 16.1% |
 | New Moon: Thu Sep 10 |
 | First Quarter: Fri Sep 18 |
 | Full Moon: Sat Sep 26 |
 | Last Quarter: Sat Oct 3 |
| New Moon: Sat Oct 10 |
| Click for Monthly Moon Almanac |
