Observed 8:56 AM EDT at KHEF

Montclair, VA weather

Sunny and 39°4°.

Mostly agree

Now 39°4°

Sunny

Wind: Calm; Up to 5 mph8 km/h through 9 PM
Dew point: 38°3°; Comfortable
Humidity: 96%; Air 39°4°, dew point 38°3° · fog or dew likely
UV index: 0Low; Moderate 12–4 PM · peak 4
Air quality: 52Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.56 inHg1035 hPa; Rising · +0.05 inHg+1.8 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Above 50°10° today by 10 AM
High 64°18° today at 3 PM
Below 50°10° tonight after 8 PM
Fog tonight midnight–4 AM
Drops 12°7° tomorrow 5–8 PM (66°19° → 54°12°)

This morningUp to 57°14° by 11 AM · Clear
This afternoonUp to 64°18° by 3 PM · Clear
TonightDown to 39°4° by 5 AM · Partly cloudy
Tomorrow morningUp to 57°14° by 11 AM · Clear
Tomorrow afternoonUp to 67°19° by 3 PM · Clear
Tomorrow nightDown to 41°5° by 5 AM · Clear
Monday morningNear 40°4° · 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 9a	Sunny	44°7° (likely 42°6° to 47°8°)	42°6°	0%	3 mph5 km/h from N, gusts 7 mph11 km/h	89%	14%	0
Sat 10a	Sunny	51°11° (likely 49°9° to 53°12°)	51°11°	0%	3 mph5 km/h from NE, gusts 7 mph12 km/h	74%	0%	1
Sat 11a	Sunny	57°14° (likely 54°12° to 57°14°)	57°14°	0%	5 mph8 km/h from NE, gusts 9 mph14 km/h	64%	6%	2
Sat 12p	Mostly sunny	59°15° (likely 57°14° to 60°16°)	59°15°	0%	5 mph8 km/h from E, gusts 10 mph17 km/h	57%	21%	4
Sat 1p	Mostly sunny	62°17° (likely 57°14° to 62°17°)	62°17°	0%	5 mph8 km/h from E, gusts 11 mph18 km/h	52%	19%	4
Sat 2p	Mostly sunny	63°17° (likely 59°15° to 63°17°)	63°17°	0%	5 mph8 km/h from E, gusts 9 mph15 km/h	48%	26%	4
Sat 3p	Mostly sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	5 mph8 km/h from E, gusts 9 mph14 km/h	46%	25%	4
Sat 4p	Mostly sunny	64°18° (likely 60°16° to 64°18°)	64°18°	0%	5 mph8 km/h from E, gusts 8 mph12 km/h	46%	27%	2
Sat 5p	Partly sunny	62°17° (likely 60°16° to 62°17°)	62°17°	0%	5 mph8 km/h from E, gusts 7 mph12 km/h	50%	25%	1
Sat 6p	Partly cloudy	58°14° (likely 57°14° to 59°15°)	58°14°	0%	5 mph8 km/h from E, gusts 8 mph12 km/h	59%	26%	0
Sat 7p	Partly cloudy	52°11° (likely 52°11° to 55°13°)	52°11°	0%	5 mph8 km/h from E, gusts 5 mph7 km/h	74%	59%	0
Sat 8p	Partly cloudy	49°9° (likely 49°9° to 54°12°)	48°9°	0%	3 mph5 km/h from E, gusts 5 mph8 km/h	83%	48%	0
Sat 9p	Mostly clear	47°8° (likely 47°8° to 54°12°)	47°8°	0%	2 mph3 km/h from NE, gusts 6 mph9 km/h	86%	15%	0
Sat 10p	Partly cloudy	45°7° (likely 45°7° to 53°12°)	45°7°	0%	2 mph3 km/h from NE, gusts 4 mph6 km/h	93%	35%	0
Sat 11p	Mostly clear	44°7° (likely 44°7° to 52°11°)	44°7°	0%	2 mph3 km/h from NE, gusts 4 mph6 km/h	93%	53%	0
Sun 12a	Fog	43°6° (likely 43°6° to 53°12°)	43°6°	0%	1 mph2 km/h from NE, gusts 3 mph5 km/h	96%	56%	0
Sun 1a	Fog	42°6° (likely 42°6° to 53°12°)	42°6°	0%	1 mph2 km/h from NE, gusts 4 mph6 km/h	100%	55%	0
Sun 2a	Fog	42°6° (likely 42°6° to 49°9°)	42°6°	0%	1 mph2 km/h from N, gusts 5 mph8 km/h	100%	26%	0
Sun 3a	Fog	40°4° (likely 40°4° to 49°9°)	40°4°	0%	1 mph2 km/h from N, gusts 5 mph7 km/h	100%	55%	0
Sun 4a	Mostly clear	40°4° (likely 40°4° to 47°8°)	40°4°	0%	1 mph2 km/h from N, gusts 4 mph7 km/h	100%	28%	0
Sun 5a	Clear	39°4° (likely 39°4° to 46°8°)	39°4°	0%	2 mph3 km/h from N, gusts 5 mph8 km/h	100%	20%	0
Sun 6a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	2 mph3 km/h from N, gusts 5 mph9 km/h	100%	20%	0
Sun 7a	Sunny	39°4° (likely 39°4° to 45°7°)	39°4°	0%	2 mph3 km/h from N, gusts 6 mph10 km/h	100%	18%	0
Sun 8a	Sunny	39°4° (likely 39°4° to 45°7°)	39°4°	0%	2 mph3 km/h from N, gusts 6 mph10 km/h	100%	18%	0
Sun 9a	Partly sunny	45°7° (likely 45°7° to 49°9°)	45°7°	0%	2 mph3 km/h from N, gusts 7 mph11 km/h	96%	17%	1
Sun 10a	Sunny	52°11° (likely 52°11° to 55°13°)	52°11°	0%	2 mph3 km/h from N, gusts 8 mph13 km/h	77%	11%	2
Sun 11a	Mostly sunny	57°14° (likely 57°14° to 59°15°)	57°14°	0%	2 mph3 km/h from NE, gusts 9 mph14 km/h	67%	11%	3
Sun 12p	Mostly sunny	61°16° (likely 59°15° to 62°17°)	61°16°	0%	2 mph3 km/h from NE, gusts 7 mph11 km/h	58%	9%	4
Sun 1p	Sunny	63°17° (likely 61°16° to 64°18°)	63°17°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	52%	26%	4
Sun 2p	Sunny	66°19° (likely 61°16° to 66°19°)	66°19°	0%	2 mph3 km/h from E, gusts 5 mph9 km/h	47%	40%	4
Sun 3p	Sunny	67°19° (likely 62°17° to 67°19°)	67°19°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	45%	39%	4
Sun 4p	Sunny	67°19° (likely 62°17° to 67°19°)	67°19°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	47%	19%	3
Sun 5p	Sunny	66°19° (likely 62°17° to 66°19°)	66°19°	0%	1 mph2 km/h from E, gusts 6 mph9 km/h	48%	7%	2
Sun 6p	Clear	61°16° (likely 59°15° to 62°17°)	61°16°	0%	1 mph2 km/h from E, gusts 5 mph7 km/h	58%	1%	0
Sun 7p	Clear	54°12° (likely 54°12° to 57°14°)	54°12°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	77%	1%	0
Sun 8p	Clear	52°11° (likely 51°11° to 55°13°)	52°11°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	83%	0%	0
Sun 9p	Clear	50°10° (likely 49°9° to 52°11°)	50°10°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	86%	1%	0
Sun 10p	Clear	47°8° (likely 47°8° to 51°11°)	47°8°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	96%	0%	0
Sun 11p	Clear	45°7° (likely 45°7° to 50°10°)	45°7°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	100%	0%	0
Mon 12a	Clear	44°7° (likely 44°7° to 49°9°)	44°7°	0%	1 mph2 km/h from S, gusts 3 mph4 km/h	100%	2%	0
Mon 1a	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	1 mph2 km/h from SW, gusts 3 mph5 km/h	100%	10%	0
Mon 2a	Clear	43°6° (likely 42°6° to 46°8°)	43°6°	0%	1 mph2 km/h from W, gusts 3 mph6 km/h	100%	11%	0
Mon 3a	Clear	43°6° (likely 40°4° to 45°7°)	43°6°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	100%	15%	0
Mon 4a	Clear	42°6° (likely 39°4° to 45°7°)	42°6°	0%	2 mph3 km/h from W, gusts 3 mph5 km/h	100%	13%	0
Mon 5a	Clear	41°5° (likely 38°3° to 44°7°)	41°5°	0%	2 mph3 km/h from W, gusts 3 mph5 km/h	100%	15%	0
Mon 6a	Clear	39°4° (likely 37°3° to 44°7°)	39°4°	0%	2 mph3 km/h from W, gusts 3 mph5 km/h	100%	25%	0
Mon 7a	Sunny	38°3° (likely 36°2° to 44°7°)	38°3°	0%	2 mph3 km/h from W, gusts 3 mph5 km/h	100%	26%	0
Mon 8a	Sunny	40°4° (likely 35°2° to 45°7°)	40°4°	0%	2 mph3 km/h from W, gusts 4 mph6 km/h	100%	26%	0

Days ahead

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

Today, Oct 24. Mostly sunny. High 64°18°, low 39°4°. Typical 66°19° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Fog, 39°4°
  Dry
Official NWS forecast
Today: Sunny, with a high near 64. Northeast wind around 5 mph.
Tonight: Patchy fog between midnight and 5am. Mostly clear, with a low around 39. Northeast wind 1 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–64°18°
Low, likely
36°2°–42°6°
Typical high / low
66°19° / 46°8°
Wind
7 mph11 km/h, gusts 14 mph23 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 67°19°, low 38°3°. Typical 66°19° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 41°5°
  Dry
Official NWS forecast
Day: Sunny, with a high near 67. Northeast wind around 2 mph.
Night: Clear, with a low around 38. South wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–67°19°
Low, likely
38°3°–45°7°
Typical high / low
66°19° / 46°8°
Wind
6 mph10 km/h, gusts 12 mph19 km/h
UV peak
4
Monday, Oct 26. Sunny. High 70°21°, low 49°9°. Typical 65°18° / 46°8°. 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, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 70. Northwest wind around 5 mph.
Night: Clear, with a low around 49.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
68°20°–70°21°
Low, likely
35°2°–49°9°
Typical high / low
65°18° / 46°8°
Wind
7 mph10 km/h, gusts 13 mph21 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 68°20°, low 46°8°. Typical 65°18° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 47°8°
  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
66°19°–70°21°
Low, likely
46°8°–51°11°
Typical high / low
65°18° / 45°7°
Wind
8 mph13 km/h, gusts 19 mph31 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 65°18°, low 47°8°. Typical 64°18° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 65.
Night: Mostly cloudy, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–66°19°
Low, likely
43°6°–49°9°
Typical high / low
64°18° / 45°7°
Wind
6 mph10 km/h, gusts 16 mph26 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 70°21°, low 50°10°. Typical 64°18° / 45°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 68°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: Mostly sunny, with a high near 70.
Night: Mostly clear, with a low around 50.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
67°19°–70°21°
Low, likely
44°7°–50°10°
Typical high / low
64°18° / 45°7°
Wind
6 mph9 km/h, gusts 20 mph33 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 73°23°, low 50°10°. Typical 64°18° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  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 73.
Night: Mostly clear, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–76°24°
Low, likely
44°7°–50°10°
Typical high / low
64°18° / 44°7°
Wind
9 mph15 km/h, gusts 25 mph40 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 69°21°, low 47°8°. Typical 63°17° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 49°10°
  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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
60°16°–74°23°
Low, likely
44°7°–50°10°
Typical high / low
63°17° / 44°7°
Wind
10 mph15 km/h, gusts 23 mph37 km/h
UV peak
2
Sunday, Nov 1. Cloudy. High 68°20°, low 49°9°. Typical 63°17° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 54°12°
  20% chance
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
58°14°–73°23°
Low, likely
42°6°–54°12°
Typical high / low
63°17° / 44°7°
Wind
7 mph12 km/h, gusts 18 mph29 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 69°21°, low 54°12°. Typical 63°17° / 43°6°. Rain 0.04 in1 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
57°14°–77°25°
Low, likely
44°7°–59°15°
Typical high / low
63°17° / 43°6°
Wind
7 mph11 km/h, gusts 19 mph30 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 64°, low 39°.
Tomorrow
Dry, high 67°, low 38°, warming up.
Monday
Dry, high 70°, low 49°, warming up.
Rest of week
Mostly dry, highs 65–73°.

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

Quantico Creek at Dumfries

3.4 mi

Level: 2.6 ft

Reading from Sat 8:45 AM · NWS gauge page

South Fork Quantico Creek near Independent Hill

5.1 mi

Below flood stage

Level: 2.8 ft
Flow: under 1 cfs

Reading from Sat 8:15 AM · NWS gauge page

Potomac River at Leesylvania State Park

5.4 mi

Below flood stage

Level: 2.7 ft

Reading from Sat 9 AM · NWS gauge page

Purcell Branch at Purcell Road

7.2 mi

Below flood stage

Level: 0.3 ft

Reading from Sat 9:05 AM · NWS gauge page

For your home

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

Heating this week

About 58% less heating than a typical week.

This week 29Typical 70

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 24
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 13 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 38°F).

Open the windows?

Today, 1:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

Quantico Mcas · official normals 1991–2020 · records 1945–2026

Oct 24, today vs a typical year

Today’s expected high is 2°1° colder than typical.

Last 7 days vs normal

On average 1°0° colder than normal (daily mean temperature).

−6°−3°SunOct 18
−3°−2°MonOct 19
+4°+2°TueOct 20
+1°±0°WedOct 21
+2°+1°ThuOct 22
±0°FriOct 23
—SatOct 24

Montclair 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: 5:42–6:35 PM; Morning 7:11–8:04 AM
Blue hour: 6:35–6:45 PM; Morning 7:00–7:11 AM; first light 7:00 AM

Stars tonight? Fair

Mostly clear 5–7:01 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:40 AM · rises 5:15 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Montclair. The highest point on the skyline is about 3,900 ft, 56 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Montclair, VA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Quantico Creek at Dumfries

South Fork Quantico Creek near Independent Hill

Potomac River at Leesylvania State Park

Purcell Branch at Purcell Road

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