Observed 12:55 PM EDT at KDAA

Mount Vernon, VA weather

Sunny and 61°16°, jacket by 7 PM.

Mostly agree

Now 61°16°

Sunny

Wind: 5 mph8 km/h; From the east-southeast. Up to 5 mph8 km/h through 1 AM
Dew point: 41°5°; Comfortable
UV index: 4Moderate; Moderate until 3 PM
Air quality: 49Good; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.52 inHg1034 hPa; Falling slowly · −0.03 inHg−1.0 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

High 65°18° today at 2 PM
Below 50°10° tonight after 9 PM
Low 39°4° tomorrow at 6 AM
Above 50°10° tomorrow by 10 AM
Fog Monday 7–9 AM

This afternoonNear 64°18° · Clear
TonightDown to 40°4° by 5 AM · Clear
Tomorrow morningUp to 58°14° by 11 AM · Clear
Tomorrow afternoonUp to 68°20° by 4 PM · Clear
Tomorrow nightDown to 42°6° by 4 AM · Clear
Monday morningUp to 59°15° by 11 AM · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 1p	Mostly sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	5 mph8 km/h from E, gusts 8 mph13 km/h	48%	23%	4
Sat 2p	Mostly sunny	65°18° (likely 61°16° to 65°18°)	65°18°	0%	5 mph8 km/h from E, gusts 8 mph13 km/h	43%	23%	3
Sat 3p	Mostly sunny	65°18° (likely 61°16° to 65°18°)	65°18°	0%	5 mph8 km/h from E, gusts 7 mph12 km/h	43%	23%	2
Sat 4p	Mostly sunny	65°18° (likely 61°16° to 65°18°)	65°18°	0%	3 mph5 km/h from SE, gusts 8 mph12 km/h	43%	23%	1
Sat 5p	Partly sunny	64°18° (likely 60°16° to 64°18°)	64°18°	0%	5 mph8 km/h from E, gusts 8 mph13 km/h	45%	23%	1
Sat 6p	Mostly clear	60°16° (likely 56°13° to 60°16°)	60°16°	0%	3 mph5 km/h from E, gusts 9 mph14 km/h	51%	17%	0
Sat 7p	Mostly clear	55°13° (likely 53°12° to 56°13°)	55°13°	0%	3 mph5 km/h from E, gusts 8 mph12 km/h	61%	16%	0
Sat 8p	Mostly clear	52°11° (likely 51°11° to 53°12°)	52°11°	0%	2 mph3 km/h from NE, gusts 7 mph10 km/h	69%	13%	0
Sat 9p	Mostly clear	49°9° (likely 49°9° to 51°11°)	49°9°	0%	2 mph3 km/h from NE, gusts 6 mph10 km/h	77%	23%	0
Sat 10p	Mostly clear	47°8° (likely 47°8° to 51°11°)	47°8°	0%	1 mph2 km/h from NE, gusts 5 mph8 km/h	83%	57%	0
Sat 11p	Partly cloudy	46°8° (likely 46°8° to 52°11°)	46°8°	0%	2 mph3 km/h from NE, gusts 5 mph9 km/h	86%	46%	0
Sun 12a	Mostly clear	44°7° (likely 44°7° to 51°11°)	44°7°	0%	1 mph2 km/h from NE, gusts 5 mph8 km/h	93%	25%	0
Sun 1a	Clear	43°6° (likely 43°6° to 50°10°)	43°6°	0%	1 mph2 km/h from NE, gusts 4 mph6 km/h	100%	15%	0
Sun 2a	Clear	42°6° (likely 42°6° to 48°9°)	42°6°	0%	1 mph2 km/h from NE, gusts 4 mph7 km/h	100%	1%	0
Sun 3a	Clear	42°6° (likely 42°6° to 47°8°)	42°6°	0%	1 mph2 km/h from NE, gusts 5 mph7 km/h	100%	3%	0
Sun 4a	Clear	42°6° (likely 42°6° to 46°8°)	42°6°	0%	1 mph2 km/h from N, gusts 4 mph7 km/h	100%	4%	0
Sun 5a	Clear	40°4° (likely 40°4° to 46°8°)	40°4°	0%	1 mph2 km/h from N, gusts 5 mph8 km/h	100%	6%	0
Sun 6a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	1 mph2 km/h from N, gusts 6 mph9 km/h	100%	7%	0
Sun 7a	Sunny	39°4° (likely 39°4° to 44°7°)	39°4°	0%	1 mph2 km/h from N, gusts 6 mph10 km/h	100%	5%	0
Sun 8a	Sunny	40°4° (likely 40°4° to 45°7°)	40°4°	0%	2 mph3 km/h from N, gusts 6 mph10 km/h	100%	10%	0
Sun 9a	Mostly sunny	47°8° (likely 47°8° to 49°9°)	47°8°	0%	1 mph2 km/h from NE, gusts 6 mph10 km/h	89%	12%	1
Sun 10a	Mostly sunny	54°12° (likely 54°12° to 55°13°)	54°12°	0%	1 mph2 km/h from NE, gusts 8 mph12 km/h	71%	18%	2
Sun 11a	Mostly sunny	58°14° (likely 58°14° to 60°16°)	58°14°	0%	2 mph3 km/h from NE, gusts 8 mph13 km/h	64%	18%	3
Sun 12p	Sunny	62°17° (likely 61°16° to 63°17°)	62°17°	0%	2 mph3 km/h from NE, gusts 7 mph11 km/h	56%	5%	4
Sun 1p	Sunny	64°18° (likely 63°17° to 65°18°)	64°18°	0%	1 mph2 km/h from NE, gusts 6 mph9 km/h	50%	5%	4
Sun 2p	Mostly sunny	67°19° (likely 63°17° to 67°19°)	67°19°	0%	0 mph0 km/h, gusts 4 mph7 km/h	43%	12%	4
Sun 3p	Sunny	67°19° (likely 64°18° to 67°19°)	67°19°	0%	0 mph0 km/h, gusts 4 mph7 km/h	43%	14%	4
Sun 4p	Sunny	68°20° (likely 64°18° to 68°20°)	68°20°	0%	0 mph0 km/h, gusts 5 mph9 km/h	42%	6%	3
Sun 5p	Sunny	67°19° (likely 63°17° to 67°19°)	67°19°	0%	1 mph2 km/h from E, gusts 5 mph7 km/h	43%	3%	1
Sun 6p	Clear	63°17° (likely 59°15° to 63°17°)	63°17°	0%	1 mph2 km/h from E, gusts 4 mph6 km/h	52%	0%	0
Sun 7p	Clear	58°14° (likely 56°13° to 59°15°)	58°14°	0%	2 mph3 km/h from SE, gusts 4 mph7 km/h	62%	3%	0
Sun 8p	Clear	54°12° (likely 53°12° to 54°12°)	54°12°	0%	2 mph3 km/h from SE, gusts 3 mph5 km/h	74%	0%	0
Sun 9p	Clear	51°11° (likely 50°10° to 53°12°)	51°11°	0%	1 mph2 km/h from SE, gusts 3 mph5 km/h	83%	0%	0
Sun 10p	Clear	48°9° (likely 48°9° to 52°11°)	48°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	89%	0%	0
Sun 11p	Clear	46°8° (likely 46°8° to 51°11°)	46°8°	0%	0 mph0 km/h, gusts 3 mph4 km/h	93%	1%	0
Mon 12a	Clear	45°7° (likely 45°7° to 50°10°)	45°7°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	1%	0
Mon 1a	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	1 mph2 km/h from SW, gusts 2 mph3 km/h	100%	1%	0
Mon 2a	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	1 mph2 km/h from W, gusts 2 mph4 km/h	100%	0%	0
Mon 3a	Clear	43°6° (likely 43°6° to 46°8°)	43°6°	0%	1 mph2 km/h from W, gusts 2 mph3 km/h	100%	2%	0
Mon 4a	Clear	42°6° (likely 42°6° to 45°7°)	42°6°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	100%	12%	0
Mon 5a	Mostly clear	42°6° (likely 42°6° to 44°7°)	42°6°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	100%	26%	0
Mon 6a	Mostly clear	40°4° (likely 40°4° to 44°7°)	40°4°	0%	1 mph2 km/h from W, gusts 4 mph6 km/h	100%	41%	0
Mon 7a	Fog	39°4° (likely 39°4° to 43°6°)	39°4°	0%	2 mph3 km/h from W, gusts 3 mph4 km/h	100%	47%	0
Mon 8a	Fog	40°4° (likely 39°4° to 43°6°)	40°4°	0%	2 mph3 km/h from W, gusts 3 mph4 km/h	100%	45%	0
Mon 9a	Sunny	46°8° (likely 42°6° to 51°11°)	46°8°	0%	2 mph3 km/h from W, gusts 4 mph6 km/h	89%	26%	1
Mon 10a	Sunny	52°11° (likely 49°9° to 56°13°)	52°11°	0%	3 mph5 km/h from W, gusts 5 mph8 km/h	77%	21%	2
Mon 11a	Sunny	59°15° (likely 54°12° to 61°16°)	59°15°	0%	3 mph5 km/h from W, gusts 7 mph11 km/h	62%	18%	3
Mon 12p	Sunny	63°17° (likely 60°16° to 65°18°)	63°17°	0%	3 mph5 km/h from W, gusts 7 mph11 km/h	56%	0%	4

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Mostly sunny. High 65°18°, low 39°4°. Typical 66°19° / 49°9°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Mostly sunny, 65°18°
  Dry
2. Evening
  6 PM–midnight
  Mostly clear, 52°11°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 40°4°
  Dry
Official NWS forecast
Today: Sunny, with a high near 65. East wind around 5 mph.
Tonight: Patchy fog after 1am. Mostly clear, with a low around 39. Northeast wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–65°18°
Low, likely
38°3°–42°6°
Typical high / low
66°19° / 49°9°
Wind
6 mph9 km/h, gusts 14 mph23 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 68°20°, low 39°4°. Typical 66°19° / 49°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°6°
  Dry
Official NWS forecast
Day: Patchy fog before 8am. Sunny, with a high near 68. Northeast wind around 2 mph.
Night: Clear, with a low around 39. South wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–68°20°
Low, likely
39°4°–44°7°
Typical high / low
66°19° / 49°9°
Wind
6 mph10 km/h
UV peak
4
Monday, Oct 26. Sunny. High 70°21°, low 50°10°. Typical 66°19° / 48°9°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Official NWS forecast
Day: Sunny, with a high near 70. West wind 1 to 5 mph.
Night: Clear, with a low around 50.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
68°20°–70°21°
Low, likely
40°4°–50°10°
Typical high / low
66°19° / 48°9°
Wind
7 mph11 km/h, gusts 13 mph21 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 68°20°, low 46°8°. Typical 65°18° / 48°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 51°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 68.
Night: Mostly clear, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–70°21°
Low, likely
46°8°–51°11°
Typical high / low
65°18° / 48°9°
Wind
8 mph13 km/h, gusts 19 mph31 km/h
UV peak
4
Wednesday, Oct 28. Mostly cloudy. High 66°19°, low 48°9°. Typical 65°18° / 48°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 47°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 49°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 66.
Night: Mostly cloudy, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–67°19°
Low, likely
45°7°–49°9°
Typical high / low
65°18° / 48°9°
Wind
7 mph10 km/h, gusts 17 mph28 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 71°22°, low 51°11°. Typical 65°18° / 47°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 71.
Night: Mostly clear, with a low around 51.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
67°19°–71°22°
Low, likely
47°8°–51°11°
Typical high / low
65°18° / 47°8°
Wind
6 mph9 km/h, gusts 22 mph35 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 73°23°, low 51°11°. Typical 64°18° / 47°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 49°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 51°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 73.
Night: Mostly clear, with a low around 51.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
72°22°–75°24°
Low, likely
48°9°–51°11°
Typical high / low
64°18° / 47°8°
Wind
10 mph16 km/h, gusts 24 mph38 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 72°22°, low 50°10°. Typical 64°18° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–75°24°
Low, likely
47°8°–53°12°
Typical high / low
64°18° / 46°8°
Wind
10 mph16 km/h, gusts 25 mph40 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 70°21°, low 54°12°. Typical 64°18° / 46°8°. Rain 0.03 in0.8 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 62°17°
  20% chance · 0.01 in0.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 60°15°
  20% chance · 0.05 in1.3 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
64°18°–72°22°
Low, likely
53°12°–56°13°
Typical high / low
64°18° / 46°8°
Wind
8 mph12 km/h, gusts 18 mph29 km/h
UV peak
2
Monday, Nov 2. Drizzle. High 71°22°, low 59°15°. Typical 63°17° / 46°8°. Rain 0.16 in4.1 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 62°17°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 65°18°
  20% chance · 0.02 in0.5 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
65°18°–77°25°
Low, likely
58°14°–60°16°
Typical high / low
63°17° / 46°8°
Wind
8 mph12 km/h, gusts 17 mph28 km/h

10 days15 days30 days

The outlook

Today
Dry, high 65°, low 39°.
Tomorrow
Dry, high 68°, low 39°, warming up.
Monday
Dry, high 70°, low 50°.
Rest of week
Mostly dry, highs 66–73°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (LWX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Potomac River at Alexandria

7.3 mi

Below flood stage

Level: 0.7 ft

Forecast peak 3.2 ft Sat 7 PM, action stage

Reading from Sat 12:24 PM · NWS gauge page

Little Hunting Creek Trib at Audubon Ave

2.5 mi

Below flood stage

Level: 19.1 ft

Reading from Sat 12:20 PM · NWS gauge page

Unnamed Tributary at Kingstowne Regional Pond

3.8 mi

Level: 147 ft

Reading from Sat 7:05 AM · NWS gauge page

Unnamed Tributary at New Alexandria Storm Water Pumping Station - Downstream

5.0 mi

Below flood stage

Level: 2.3 ft

Reading from Sat 12:30 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 54% less heating than a typical week.

This week 27Typical 59

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 23
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 12 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 41°F).

Open the windows?

Today, 2:00 PM–6:00 PM

Good stretch to open the windows.

Is this typical?

Washington Reagan National Airport · official normals 1991–2020 · records 1872–2026

Oct 24, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

On average 2°1° colder than normal (daily mean temperature).

−7°−4°SunOct 18
−4°−2°MonOct 19
+1°±0°TueOct 20
±0°WedOct 21
−1°ThuOct 22
−1°FriOct 23
—SatOct 24

Mount Vernon weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 51 min; Losing 2 min 16 s a day; shortest Dec 21, 1 h 23 min less
Golden hour: 5:40–6:34 PM; Morning 7:10–8:03 AM
Blue hour: 6:34–6:44 PM; Morning 6:59–7:10 AM; first light 6:59 AM

Stars tonight? Fair

Mostly clear 12–7 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:39 AM · rises 5:14 PM
Full moon: Oct 26
New moon: Nov 9

Looking southwest from Mount Vernon. The highest point on the skyline is about 3,400 ft, 12 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Mount Vernon, VA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Potomac River at Alexandria

Little Hunting Creek Trib at Audubon Ave

Unnamed Tributary at Kingstowne Regional Pond

Unnamed Tributary at New Alexandria Storm Water Pumping Station - Downstream

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon