Kettle Run at Bristow Manor GC
3.5 mi- Level
- 1.0 ft
Reading from Sat 5:55 AM · NWS gauge page
Observed 7:20 AM EDT at KHEF
Innovation, VA weather
Clear and 30°−1°.
Today: low 35°2° (likely 35°2° to 40°4°), high 64°18° (likely 61°16° to 64°18°).
Now 30°−1°
Clear
- Wind
- Calm
- Up to 5 mph8 km/h through 7 PM
- Dew point
- 30°−1°
- Dry · up to 41°5° by 9 AM (comfortable)
- Humidity
- 100%
- Air 30°−1°, 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
- 30.53 inHg1034 hPa
- Rising slowly · +0.04 inHg+1.3 hPa in 3 h
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
Good hours for
This morningUp to 55°13° by 11 AM · Partly cloudy
This afternoonUp to 64°18° by 2 PM · Clear
TonightDown to 35°2° 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 37°3° by 5 AM · Clear
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 7a | Fog | 36°2° (likely 36°2° to 41°5°) | 36°2° | 0% | 1 mph2 km/h from N, gusts 7 mph11 km/h | 100% | 55% | 0 |
| Sat 8a | Fog | 36°2° (likely 35°2° to 41°5°) | 36°2° | 0% | 2 mph3 km/h from N, gusts 7 mph11 km/h | 100% | 63% | 0 |
| Sat 9a | Mostly sunny | 42°6° (likely 40°4° to 46°8°) | 42°6° | 0% | 2 mph3 km/h from N, gusts 6 mph9 km/h | 96% | 43% | 1 |
| Sat 10a | Sunny | 50°10° (likely 47°8° to 52°11°) | 50°10° | 0% | 2 mph3 km/h from NE, gusts 6 mph10 km/h | 77% | 6% | 2 |
| Sat 11a | Sunny | 55°13° (likely 53°12° to 56°13°) | 55°13° | 0% | 3 mph5 km/h from NE, gusts 8 mph13 km/h | 64% | 2% | 3 |
| Sat 12p | Sunny | 59°15° (likely 58°14° to 59°15°) | 59°15° | 0% | 3 mph5 km/h from E, gusts 8 mph13 km/h | 55% | 8% | 4 |
| Sat 1p | Sunny | 61°16° (likely 60°16° to 61°16°) | 61°16° | 0% | 3 mph5 km/h from E, gusts 8 mph13 km/h | 48% | 11% | 4 |
| Sat 2p | Mostly sunny | 64°18° (likely 61°16° to 64°18°) | 64°18° | 0% | 3 mph5 km/h from E, gusts 8 mph13 km/h | 41% | 19% | 4 |
| Sat 3p | Mostly sunny | 64°18° (likely 61°16° to 64°18°) | 64°18° | 0% | 3 mph5 km/h from SE, gusts 8 mph12 km/h | 41% | 23% | 4 |
| Sat 4p | Mostly sunny | 64°18° (likely 61°16° to 64°18°) | 64°18° | 0% | 3 mph5 km/h from E, gusts 7 mph12 km/h | 43% | 26% | 3 |
| Sat 5p | Mostly sunny | 63°17° (likely 60°16° to 63°17°) | 63°17° | 0% | 5 mph8 km/h from E, gusts 8 mph13 km/h | 46% | 29% | 2 |
| Sat 6p | Mostly clear | 59°15° (likely 56°13° to 60°16°) | 59°15° | 0% | 3 mph5 km/h from E, gusts 7 mph12 km/h | 55% | 18% | 0 |
| Sat 7p | Partly cloudy | 52°11° (likely 52°11° to 55°13°) | 52°11° | 0% | 3 mph5 km/h from E, gusts 5 mph8 km/h | 71% | 31% | 0 |
| Sat 8p | Partly cloudy | 50°10° (likely 50°10° to 53°12°) | 50°10° | 0% | 2 mph3 km/h from E, gusts 7 mph12 km/h | 77% | 55% | 0 |
| Sat 9p | Mostly clear | 46°8° (likely 46°8° to 53°12°) | 46°8° | 0% | 1 mph2 km/h from E, gusts 7 mph12 km/h | 86% | 54% | 0 |
| Sat 10p | Clear | 43°6° (likely 43°6° to 51°11°) | 43°6° | 0% | 1 mph2 km/h from E, gusts 7 mph11 km/h | 96% | 40% | 0 |
| Sat 11p | Fog | 40°4° (likely 40°4° to 50°10°) | 40°4° | 0% | 1 mph2 km/h from NE, gusts 6 mph9 km/h | 100% | 49% | 0 |
| Sun 12a | Fog | 39°4° (likely 39°4° to 48°9°) | 39°4° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 100% | 34% | 0 |
| Sun 1a | Clear | 39°4° (likely 39°4° to 47°8°) | 39°4° | 0% | 0 mph0 km/h, gusts 5 mph9 km/h | 100% | 17% | 0 |
| Sun 2a | Clear | 38°3° (likely 38°3° to 46°8°) | 38°3° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 100% | 19% | 0 |
| Sun 3a | Fog | 38°3° (likely 38°3° to 45°7°) | 38°3° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 100% | 48% | 0 |
| Sun 4a | Partly cloudy | 36°2° (likely 36°2° to 44°7°) | 36°2° | 0% | 0 mph0 km/h, gusts 3 mph6 km/h | 100% | 32% | 0 |
| Sun 5a | Fog | 35°2° (likely 35°2° to 43°6°) | 35°2° | 0% | 1 mph2 km/h from N, gusts 4 mph7 km/h | 100% | 22% | 0 |
| Sun 6a | Mostly clear | 35°2° (likely 35°2° to 42°6°) | 35°2° | 0% | 1 mph2 km/h from N, gusts 6 mph9 km/h | 100% | 24% | 0 |
| Sun 7a | Sunny | 35°2° (likely 35°2° to 41°5°) | 35°2° | 0% | 1 mph2 km/h from N, gusts 6 mph10 km/h | 100% | 12% | 0 |
| Sun 8a | Sunny | 35°2° (likely 35°2° to 42°6°) | 35°2° | 0% | 1 mph2 km/h from N, gusts 6 mph10 km/h | 100% | 13% | 0 |
| Sun 9a | Sunny | 43°6° (likely 43°6° to 47°8°) | 43°6° | 0% | 1 mph2 km/h from N, gusts 6 mph9 km/h | 93% | 13% | 1 |
| Sun 10a | Sunny | 50°10° (likely 50°10° to 53°12°) | 50°10° | 0% | 1 mph2 km/h from N, gusts 6 mph10 km/h | 80% | 12% | 2 |
| Sun 11a | Mostly sunny | 57°14° (likely 55°13° to 58°14°) | 57°14° | 0% | 1 mph2 km/h from NE, gusts 7 mph11 km/h | 64% | 9% | 3 |
| Sun 12p | Mostly sunny | 61°16° (likely 60°16° to 61°16°) | 61°16° | 0% | 1 mph2 km/h from NE, gusts 6 mph10 km/h | 56% | 10% | 4 |
| Sun 1p | Sunny | 63°17° (likely 61°16° to 64°18°) | 63°17° | 0% | 1 mph2 km/h from E, gusts 6 mph10 km/h | 52% | 37% | 4 |
| Sun 2p | Sunny | 66°19° (likely 61°16° to 66°19°) | 66°19° | 0% | 1 mph2 km/h from SE, gusts 6 mph10 km/h | 45% | 31% | 4 |
| Sun 3p | Sunny | 67°19° (likely 62°17° to 67°19°) | 67°19° | 0% | 1 mph2 km/h from E, gusts 5 mph9 km/h | 43% | 27% | 4 |
| Sun 4p | Sunny | 67°19° (likely 62°17° to 67°19°) | 67°19° | 0% | 2 mph3 km/h from SE, gusts 6 mph10 km/h | 43% | 7% | 3 |
| Sun 5p | Sunny | 66°19° (likely 62°17° to 66°19°) | 66°19° | 0% | 2 mph3 km/h from SE, gusts 6 mph10 km/h | 47% | 7% | 2 |
| Sun 6p | Clear | 62°17° (likely 59°15° to 62°17°) | 62°17° | 0% | 1 mph2 km/h from SE, gusts 4 mph6 km/h | 54% | 3% | 0 |
| Sun 7p | Clear | 55°13° (likely 55°13° to 58°14°) | 55°13° | 0% | 1 mph2 km/h from SE, gusts 3 mph5 km/h | 72% | 4% | 0 |
| Sun 8p | Clear | 51°11° (likely 51°11° to 55°13°) | 51°11° | 0% | 1 mph2 km/h from SE, gusts 4 mph7 km/h | 83% | 1% | 0 |
| Sun 9p | Clear | 48°9° (likely 48°9° to 53°12°) | 48°9° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 93% | 0% | 0 |
| Sun 10p | Clear | 46°8° (likely 46°8° to 50°10°) | 46°8° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 96% | 1% | 0 |
| Sun 11p | Clear | 43°6° (likely 43°6° to 49°9°) | 43°6° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 100% | 2% | 0 |
| Mon 12a | Clear | 42°6° (likely 42°6° to 47°8°) | 42°6° | 0% | 0 mph0 km/h, gusts 3 mph4 km/h | 100% | 1% | 0 |
| Mon 1a | Clear | 41°5° (likely 41°5° to 46°8°) | 41°5° | 0% | 1 mph2 km/h from W, gusts 3 mph5 km/h | 100% | 0% | 0 |
| Mon 2a | Clear | 40°4° (likely 40°4° to 45°7°) | 40°4° | 0% | 1 mph2 km/h from W, gusts 3 mph5 km/h | 100% | 9% | 0 |
| Mon 3a | Clear | 39°4° (likely 39°4° to 45°7°) | 39°4° | 0% | 1 mph2 km/h from W, gusts 3 mph5 km/h | 100% | 15% | 0 |
| Mon 4a | Clear | 38°3° (likely 38°3° to 45°7°) | 38°3° | 0% | 1 mph2 km/h from W, gusts 3 mph5 km/h | 100% | 14% | 0 |
| Mon 5a | Clear | 37°3° (likely 36°2° to 44°7°) | 37°3° | 0% | 1 mph2 km/h from W, gusts 3 mph4 km/h | 100% | 18% | 0 |
| Mon 6a | Clear | 36°2° (likely 35°2° to 44°7°) | 36°2° | 0% | 1 mph2 km/h from W, gusts 3 mph4 km/h | 100% | 27% | 0 |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Fog. High 64°18°, low 35°2°. Typical 65°18° / 42°6°. Dry. Mostly agree.
Morning
6 AM–noon
Mostly sunny, 36°2°Dry
Afternoon
noon–6 PM
Mostly sunny, 64°18°Dry
Evening
6 PM–midnight
Mostly clear, 50°10°Dry
Overnight
midnight–6 AM
Fog, 35°2°Dry
Official NWS forecast
Today: Patchy frost and patchy fog before 9am. Sunny, with a high near 64. Northeast wind 1 to 5 mph.
Tonight: Patchy fog between 10pm and 4am, then patchy frost and patchy fog. Mostly clear, with a low around 35. Northeast wind 0 to 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 61°16°–64°18°
- Low, likely
- 35°2°–40°4°
- Typical high / low
- 65°18° / 42°6°
- Wind
- 6 mph9 km/h, gusts 12 mph20 km/h
- UV peak
- 4
Tomorrow, Oct 25. Fog. High 67°19°, low 35°2°. Typical 64°18° / 42°6°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 35°2°Dry
Afternoon
noon–6 PM
Sunny, 67°19°Dry
Evening
6 PM–midnight
Clear, 51°11°Dry
Overnight
midnight–6 AM
Clear, 37°3°Dry
Official NWS forecast
Day: Patchy frost and patchy fog before 9am. Sunny, with a high near 67. Northeast wind around 2 mph.
Night: Patchy frost after 5am. Clear, with a low around 35. Southwest wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 62°17°–67°19°
- Low, likely
- 35°2°–41°5°
- Typical high / low
- 64°18° / 42°6°
- Wind
- 5 mph9 km/h
- UV peak
- 4
Monday, Oct 26. Mostly sunny. High 70°21°, low 47°8°. Typical 64°18° / 41°5°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 40°5°Dry
Afternoon
noon–6 PM
Sunny, 69°21°Dry
Evening
6 PM–midnight
Clear, 55°13°Dry
Overnight
midnight–6 AM
Clear, 48°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 1 to 5 mph.
Night: Mostly clear, with a low around 47.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 68°20°–70°21°
- Low, likely
- 36°2°–47°8°
- Typical high / low
- 64°18° / 41°5°
- Wind
- 7 mph11 km/h, gusts 13 mph21 km/h
- UV peak
- 4
Tuesday, Oct 27. Mostly sunny. High 67°19°, low 44°7°. Typical 64°18° / 41°5°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 47°8°Dry
Afternoon
noon–6 PM
Sunny, 68°20°Dry
Evening
6 PM–midnight
Clear, 56°13°Dry
Overnight
midnight–6 AM
Cloudy, 48°9°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 67.
Night: Mostly clear, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 66°19°–70°21°
- Low, likely
- 44°7°–50°10°
- Typical high / low
- 64°18° / 41°5°
- Wind
- 8 mph13 km/h, gusts 24 mph39 km/h
- UV peak
- 4
Wednesday, Oct 28. Cloudy. High 65°18°, low 45°7°. Typical 64°18° / 41°5°. Dry. Mostly agree.
Morning
6 AM–noon
Mostly sunny, 47°8°Dry
Afternoon
noon–6 PM
Partly sunny, 65°18°Dry
Evening
6 PM–midnight
Partly cloudy, 54°12°Dry
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 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 64°18°–66°19°
- Low, likely
- 43°6°–47°8°
- Typical high / low
- 64°18° / 41°5°
- Wind
- 6 mph9 km/h, gusts 16 mph26 km/h
- UV peak
- 4
Thursday, Oct 29. Partly sunny. High 70°21°, low 48°9°. Typical 63°17° / 40°4°. Dry. Mostly agree.
Morning
6 AM–noon
Partly sunny, 46°8°Dry
Afternoon
noon–6 PM
Sunny, 68°20°Dry
Evening
6 PM–midnight
Clear, 56°13°Dry
Overnight
midnight–6 AM
Clear, 47°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 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 67°19°–70°21°
- Low, likely
- 43°6°–48°9°
- Typical high / low
- 63°17° / 40°4°
- Wind
- 7 mph11 km/h, gusts 23 mph37 km/h
- UV peak
- 4
Friday, Oct 30. Mostly sunny. High 73°23°, low 48°9°. Typical 63°17° / 40°4°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 46°8°Dry
Afternoon
noon–6 PM
Sunny, 74°23°Dry
Evening
6 PM–midnight
Clear, 61°16°Dry
Overnight
midnight–6 AM
Clear, 47°8°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 48.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 73°23°–75°24°
- Low, likely
- 41°5°–48°9°
- Typical high / low
- 63°17° / 40°4°
- Wind
- 11 mph18 km/h, gusts 21 mph33 km/h
- UV peak
- 4
Saturday, Oct 31. Cloudy. High 69°21°, low 46°8°. Typical 62°17° / 40°4°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 46°8°Dry
Afternoon
noon–6 PM
Cloudy, 68°20°Dry
Evening
6 PM–midnight
Cloudy, 59°15°Dry
Overnight
midnight–6 AM
Cloudy, 51°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
- 59°15°–75°24°
- Low, likely
- 43°6°–49°9°
- Typical high / low
- 62°17° / 40°4°
- Wind
- 11 mph17 km/h, gusts 22 mph35 km/h
- UV peak
- 2
Sunday, Nov 1. Cloudy. High 69°21°, low 50°10°. Typical 62°17° / 40°4°. Rain 0.01 in0.3 mm, 20% chance. Forecasts differ.
Morning
6 AM–noon
Cloudy, 50°10°Dry
Afternoon
noon–6 PM
Cloudy, 68°20°Dry
Evening
6 PM–midnight
Partly cloudy, 58°14°20% chance
Overnight
midnight–6 AM
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°–74°23°
- Low, likely
- 43°6°–53°12°
- Typical high / low
- 62°17° / 40°4°
- Wind
- 10 mph16 km/h, gusts 24 mph38 km/h
- UV peak
- 3
Monday, Nov 2. Drizzle. High 69°21°, low 53°12°. Typical 62°17° / 39°4°. Rain 0.05 in1.3 mm, 20% chance. Forecasts differ.
Morning
6 AM–noon
Cloudy, 59°15°Dry
Afternoon
noon–6 PM
Cloudy, 69°21°Dry
Evening
6 PM–midnight
Drizzle, 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
- 43°6°–59°15°
- Typical high / low
- 62°17° / 39°4°
- Wind
- 7 mph12 km/h, gusts 20 mph32 km/h
- UV peak
- 2
The outlook
Today
Dry, high 64°, low 35°.
Tomorrow
Dry, high 67°, low 35°, 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
Rivers
NOAA river gauges within 25 mi
Below flood stage
Flat Branch near Unnamed Tributary At Amherst Drive
3.6 mi- Level
- 0.6 ft
Reading from Sat 6:05 AM · NWS gauge page
Flat Branch at Ben Lomond Park
3.7 mi- Level
- 0.7 ft
Reading from Sat 5:55 AM · NWS gauge page
Broad Run at Brentsville Road
4.4 mi- Level
- 3.4 ft
Reading from Sat 6:40 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 32Typical 88
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 19 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?
Washington Dulles International Airport · official normals 1991–2020 · records 1960–2026
Oct 24, today vs a typical year
Today’s expected high is about typical for the date.
- Normal high / low
- 65°18° / 42°6°
- Forecast high / low
- 64°18° / 35°2°
- Record high
- 84°29° in 2001
- Record low
- 15°−9° in 1969
Last 7 days vs normal
On average 2°1° colder than normal (daily mean temperature).
- −6°−3°SunOct 18
- −3°−2°MonOct 19
- +2°+1°TueOct 20
- ±0°WedOct 21
- −2°−1°ThuOct 22
- −1°FriOct 23
- —SatOct 24
Innovation weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:28 AM, sunset 6:19 PM.
- Daylight
- 10 h 51 min
- Losing 2 min 21 s a day; shortest Dec 21, 1 h 24 min less
- Golden hour
- 5:42–6:36 PM
- Morning 7:11–8:05 AM
- Blue hour
- 6:36–6:46 PM
- Morning 7:01–7:11 AM; first light 7:01 AM
Stars tonight? Fair
Mostly clear 5–7:02 AM, but the moon is 99% lit and up.
Moon
Waxing gibbous
96% lit · growing
- Today
- sets 5:41 AM · rises 5:15 PM
- Full moon
- Oct 26
- New moon
- Nov 9
