Observed 6:15 AM EDT at KHWY

Catlett, VA weather

Foggy and 32°0°.

Forecasts agree

Now 32°0°

Fog

Wind: Calm; Light through 6 PM
Visibility: 4 mi6 km; Fog · under 5 mi8 km
Dew point: 30°−1°; Dry · up to 41°5° by 9 AM (comfortable)
Humidity: 92%; Air 32°0°, dew point 30°−1° · frost likely
UV index: 0Low; Moderate 11 AM–5 PM · peak 4
Air quality: 48Good; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.5 inHg1033 hPa; Rising slowly · +0.03 inHg+1.0 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

3°2° cooler than this time yesterday (36°2° then, 33°1° now)

Good hours for

Fog until 9 AM
Above 50°10° today by 10 AM
Drops 12°7° today 5–8 PM (63°17° → 51°11°)
Fog tonight 10–11 PM
Drops 13°7° tomorrow 5–8 PM (66°19° → 53°12°)

This morningUp to 56°13° by 11 AM · Partly cloudy
This afternoonUp to 64°18° by 2 PM · Clear
TonightDown to 34°1° by 4 AM · Partly cloudy
Tomorrow morningUp to 57°14° by 11 AM · Clear
Tomorrow afternoonUp to 67°19° by 3 PM · Clear
Tomorrow nightDown to 37°3° by 5 AM · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 6a	Fog	37°3° (likely 35°2° to 42°6°)	37°3°	0%	0 mph0 km/h, gusts 4 mph7 km/h	96%	53%	0
Sat 7a	Fog	35°2° (likely 34°1° to 41°5°)	35°2°	0%	0 mph0 km/h, gusts 6 mph10 km/h	100%	55%	0
Sat 8a	Fog	36°2° (likely 34°1° to 41°5°)	36°2°	0%	1 mph2 km/h from N, gusts 7 mph12 km/h	100%	60%	0
Sat 9a	Mostly sunny	43°6° (likely 40°4° to 46°8°)	43°6°	0%	1 mph2 km/h from N, gusts 6 mph10 km/h	93%	46%	1
Sat 10a	Mostly sunny	51°11° (likely 47°8° to 51°11°)	51°11°	0%	1 mph2 km/h from NE, gusts 7 mph12 km/h	74%	10%	2
Sat 11a	Sunny	56°13° (likely 52°11° to 56°13°)	56°13°	0%	2 mph3 km/h from NE, gusts 8 mph13 km/h	64%	1%	3
Sat 12p	Sunny	59°15° (likely 56°13° to 59°15°)	59°15°	0%	3 mph5 km/h from E, gusts 8 mph13 km/h	57%	8%	4
Sat 1p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	51%	10%	4
Sat 2p	Sunny	64°18° (likely 60°16° to 64°18°)	64°18°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	45%	15%	4
Sat 3p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	45%	17%	4
Sat 4p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	45%	17%	3
Sat 5p	Mostly sunny	63°17° (likely 59°15° to 63°17°)	63°17°	0%	3 mph5 km/h from E, gusts 7 mph12 km/h	48%	28%	2
Sat 6p	Clear	59°15° (likely 56°13° to 59°15°)	59°15°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	55%	19%	0
Sat 7p	Clear	51°11° (likely 51°11° to 54°12°)	51°11°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	74%	18%	0
Sat 8p	Partly cloudy	48°9° (likely 48°9° to 51°11°)	48°9°	0%	1 mph2 km/h from E, gusts 5 mph7 km/h	83%	38%	0
Sat 9p	Mostly clear	44°7° (likely 44°7° to 50°10°)	44°7°	0%	0 mph0 km/h, gusts 5 mph8 km/h	93%	30%	0
Sat 10p	Fog	41°5° (likely 41°5° to 51°11°)	41°5°	0%	0 mph0 km/h, gusts 6 mph9 km/h	100%	44%	0
Sat 11p	Partly cloudy	40°4° (likely 40°4° to 50°10°)	40°4°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	44%	0
Sun 12a	Fog	38°3° (likely 38°3° to 47°8°)	38°3°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	56%	0
Sun 1a	Fog	37°3° (likely 37°3° to 48°9°)	37°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	50%	0
Sun 2a	Partly cloudy	36°2° (likely 36°2° to 46°8°)	36°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	42%	0
Sun 3a	Fog	36°2° (likely 36°2° to 45°7°)	36°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	27%	0
Sun 4a	Fog	34°1° (likely 34°1° to 46°8°)	34°1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	42%	0
Sun 5a	Mostly clear	34°1° (likely 34°1° to 44°7°)	34°1°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	22%	0
Sun 6a	Mostly clear	34°1° (likely 34°1° to 43°6°)	34°1°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	27%	0
Sun 7a	Sunny	33°1° (likely 33°1° to 42°6°)	33°1°	0%	0 mph0 km/h, gusts 6 mph10 km/h	100%	7%	0
Sun 8a	Sunny	34°1° (likely 34°1° to 42°6°)	34°1°	0%	0 mph0 km/h, gusts 6 mph10 km/h	100%	6%	0
Sun 9a	Sunny	42°6° (likely 42°6° to 47°8°)	42°6°	0%	0 mph0 km/h, gusts 6 mph10 km/h	100%	8%	1
Sun 10a	Sunny	50°10° (likely 50°10° to 53°12°)	50°10°	0%	0 mph0 km/h, gusts 6 mph10 km/h	80%	10%	2
Sun 11a	Mostly sunny	57°14° (likely 55°13° to 58°14°)	57°14°	0%	1 mph2 km/h from NE, gusts 8 mph12 km/h	64%	10%	3
Sun 12p	Mostly sunny	60°16° (likely 59°15° to 61°16°)	60°16°	0%	1 mph2 km/h from E, gusts 6 mph10 km/h	58%	10%	4
Sun 1p	Sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	1 mph2 km/h from E, gusts 6 mph9 km/h	52%	30%	4
Sun 2p	Sunny	66°19° (likely 61°16° to 66°19°)	66°19°	0%	1 mph2 km/h from E, gusts 6 mph9 km/h	47%	42%	4
Sun 3p	Sunny	67°19° (likely 62°17° to 67°19°)	67°19°	0%	1 mph2 km/h from E, gusts 5 mph8 km/h	45%	37%	4
Sun 4p	Sunny	67°19° (likely 62°17° to 67°19°)	67°19°	0%	1 mph2 km/h from E, gusts 5 mph8 km/h	45%	16%	3
Sun 5p	Sunny	66°19° (likely 62°17° to 66°19°)	66°19°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	47%	7%	2
Sun 6p	Clear	61°16° (likely 58°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 3 mph5 km/h	56%	3%	0
Sun 7p	Clear	53°12° (likely 53°12° to 57°14°)	53°12°	0%	0 mph0 km/h, gusts 3 mph5 km/h	74%	4%	0
Sun 8p	Clear	50°10° (likely 50°10° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 3 mph5 km/h	86%	4%	0
Sun 9p	Clear	47°8° (likely 47°8° to 52°11°)	47°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	96%	0%	0
Sun 10p	Clear	45°7° (likely 45°7° to 50°10°)	45°7°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	0%	0
Sun 11p	Clear	42°6° (likely 42°6° to 48°9°)	42°6°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	0%	0
Mon 12a	Clear	41°5° (likely 41°5° to 47°8°)	41°5°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	0%	0
Mon 1a	Clear	40°4° (likely 40°4° to 46°8°)	40°4°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	0%	0
Mon 2a	Clear	40°4° (likely 40°4° to 46°8°)	40°4°	0%	0 mph0 km/h, gusts 3 mph6 km/h	100%	10%	0
Mon 3a	Clear	39°4° (likely 39°4° to 46°8°)	39°4°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	16%	0
Mon 4a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	14%	0
Mon 5a	Clear	37°3° (likely 37°3° to 45°7°)	37°3°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	25%	0

Days ahead

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

Today, Oct 24. Fog. High 64°18°, low 33°1°. Typical 64°18° / 42°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Fog, 34°1°
  Dry
Official NWS forecast
Today: Patchy frost and patchy fog before 9am. Sunny, with a high near 64. Northeast wind 0 to 3 mph.
Tonight: Patchy fog between 10pm and 1am, then patchy frost and patchy fog. Mostly clear, with a low around 33. East wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–64°18°
Low, likely
33°1°–41°5°
Typical high / low
64°18° / 42°6°
Wind
5 mph8 km/h, gusts 13 mph21 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 67°19°, low 34°1°. Typical 64°18° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 34°1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  Dry
Official NWS forecast
Day: Patchy frost and patchy fog before 10am. Sunny, with a high near 67. Northeast wind around 1 mph.
Night: Patchy frost after 5am. Clear, with a low around 34. Wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–67°19°
Low, likely
34°1°–42°6°
Typical high / low
64°18° / 42°6°
Wind
5 mph8 km/h, gusts 10 mph17 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 70°21°, low 47°8°. Typical 63°17° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy frost before 9am. Sunny, with a high near 70. Northwest wind around 2 mph.
Night: Mostly clear, with a low around 47.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
69°21°–70°21°
Low, likely
37°3°–47°8°
Typical high / low
63°17° / 41°5°
Wind
7 mph11 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 68°20°, low 43°6°. Typical 63°17° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 46°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 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
43°6°–51°11°
Typical high / low
63°17° / 41°5°
Wind
10 mph16 km/h, gusts 17 mph27 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 65°18°, low 44°7°. Typical 63°17° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°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 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–66°19°
Low, likely
43°6°–48°9°
Typical high / low
63°17° / 41°5°
Wind
6 mph10 km/h, gusts 14 mph23 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 70°21°, low 47°8°. Typical 62°17° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  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 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
43°6°–47°8°
Typical high / low
62°17° / 40°4°
Wind
8 mph13 km/h, gusts 24 mph39 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 73°23°, low 47°8°. Typical 62°17° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 74°24°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°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 47.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
73°23°–75°24°
Low, likely
42°6°–48°9°
Typical high / low
62°17° / 40°4°
Wind
7 mph11 km/h, gusts 19 mph30 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 71°22°, low 49°9°. Typical 62°17° / 40°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 52°11°
  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
66°19°–74°23°
Low, likely
43°6°–52°11°
Typical high / low
62°17° / 40°4°
Wind
8 mph12 km/h, gusts 20 mph31 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 71°22°, low 51°11°. Typical 61°16° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 58°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
65°18°–74°23°
Low, likely
48°9°–54°12°
Typical high / low
61°16° / 39°4°
Wind
10 mph17 km/h, gusts 23 mph37 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 73°23°, low 58°14°. Typical 61°16° / 39°4°. Rain 0.08 in2 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–76°24°
Low, likely
56°13°–59°15°
Typical high / low
61°16° / 39°4°
Wind
8 mph13 km/h, gusts 17 mph28 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 64°, low 33°.
Tomorrow
Dry, high 67°, low 34°, warming up.
Monday
Dry, high 70°, low 47°, 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

Cedar Run near Catlett

1.4 mi

Below flood stage

Level: 2.3 ft
Flow: 23 cfs

Reading from Sat 4:45 AM · NWS gauge page

Cedar Run near Aden

5.0 mi

Below flood stage

Level: 0.9 ft

Reading from Sat 5:05 AM · NWS gauge page

Kettle Run at Bristow Manor GC

6.1 mi

Below flood stage

Level: 1.0 ft

Reading from Sat 4:55 AM · NWS gauge page

Slate Run at Old Church Rd

6.6 mi

Level: 0.5 ft

Reading from Sat 5:05 AM · NWS gauge page

For your home

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

Heating this week

About 64% less heating than a typical week.

This week 33Typical 91

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 25
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 21 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 30°F). Indoor air will run dry too — a humidifier keeping indoor relative humidity in the 30–50% range is more comfortable and cuts static shocks, without going so high it fogs cold windows.

Open the windows?

Today, 1:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

Manassas · official normals 1991–2020 · records 2004–2026

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).

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

Catlett weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 51 min; Losing 2 min 21 s a day; shortest Dec 21, 1 h 23 min less
Golden hour: 5:43–6:36 PM; Morning 7:12–8:05 AM
Blue hour: 6:36–6:46 PM; Morning 7:01–7:12 AM; first light 7:01 AM

Stars tonight? Poor

Clouds most of the night (about 54% cover).

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:41 AM · rises 5:16 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Catlett. The highest point on the skyline is about 4,000 ft, 42 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Catlett, VA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Cedar Run near Catlett

Cedar Run near Aden

Kettle Run at Bristow Manor GC

Slate Run at Old Church Rd

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? Poor

Moon