Potomac River near Washington DC (Little Falls)
6.7 mi- Level
- 3.2 ft
- Flow
- 3,740 cfs
Forecast peak 3.1 ft Sat 8 AM
Reading from Sat 2:50 AM · NWS gauge page
Observed 4:15 AM EDT at KDCA
Dunn Loring, VA weather
Clear and 46°8°.
Today: low 40°4° (likely 38°3° to 41°5°), high 63°17° (likely 60°16° to 63°17°).
Now 46°8°
Clear · Feels like 43°6°
- Wind
- 7 mph11 km/h
- From the northeast. Up to 7 mph11 km/h through 4 PM
- Dew point
- 43°6°
- Comfortable
- UV index
- 0Low
- Moderate 11 AM–5 PM · peak 4
- Air quality
- 60Moderate
- Main pollutant: PM2.5 (fine particles)
- Pressure
- 30.48 inHg1032 hPa
- Steady over the last 3 h
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
Good hours for
TonightNear 44°7° · Clear
This morningUp to 56°13° by 11 AM · Clear
This afternoonUp to 63°17° by 3 PM · Clear
TonightDown to 40°4° by 4 AM · Clear
Tomorrow morningUp to 57°14° by 11 AM · Clear
Tomorrow afternoonUp to 66°19° by 3 PM · Clear
Tomorrow nightDown to 44°7° by 3 AM · Clear
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 4a | Clear | 45°7° (likely 41°5° to 45°7°) | 45°7° | 0% | 1 mph2 km/h from N, gusts 3 mph5 km/h | 86% | 0% | 0 |
| Sat 5a | Clear | 43°6° (likely 40°4° to 43°6°) | 43°6° | 0% | 2 mph3 km/h from N, gusts 4 mph7 km/h | 93% | 2% | 0 |
| Sat 6a | Clear | 40°4° (likely 39°4° to 42°6°) | 40°4° | 0% | 2 mph3 km/h from NE, gusts 6 mph9 km/h | 100% | 2% | 0 |
| Sat 7a | Sunny | 40°4° (likely 39°4° to 41°5°) | 40°4° | 0% | 2 mph3 km/h from N, gusts 6 mph10 km/h | 100% | 4% | 0 |
| Sat 8a | Sunny | 40°4° (likely 38°3° to 42°6°) | 38°3° | 0% | 3 mph5 km/h from N, gusts 7 mph11 km/h | 100% | 11% | 0 |
| Sat 9a | Sunny | 46°8° (likely 43°6° to 46°8°) | 45°7° | 0% | 3 mph5 km/h from NE, gusts 7 mph12 km/h | 86% | 12% | 1 |
| Sat 10a | Sunny | 52°11° (likely 50°10° to 52°11°) | 52°11° | 0% | 3 mph5 km/h from NE, gusts 10 mph15 km/h | 69% | 0% | 2 |
| Sat 11a | Sunny | 56°13° (likely 54°12° to 57°14°) | 56°13° | 0% | 3 mph5 km/h from E, gusts 11 mph17 km/h | 59% | 3% | 3 |
| Sat 12p | Sunny | 58°14° (likely 57°14° to 59°15°) | 58°14° | 0% | 5 mph8 km/h from E, gusts 9 mph15 km/h | 53% | 10% | 4 |
| Sat 1p | Sunny | 61°16° (likely 59°15° to 61°16°) | 61°16° | 0% | 5 mph8 km/h from E, gusts 8 mph14 km/h | 46% | 9% | 4 |
| Sat 2p | Sunny | 62°17° (likely 60°16° to 62°17°) | 62°17° | 0% | 5 mph8 km/h from E, gusts 8 mph13 km/h | 43% | 12% | 4 |
| Sat 3p | Sunny | 63°17° (likely 60°16° to 63°17°) | 63°17° | 0% | 5 mph8 km/h from E, gusts 8 mph12 km/h | 41% | 16% | 4 |
| Sat 4p | Mostly sunny | 62°17° (likely 60°16° to 62°17°) | 62°17° | 0% | 5 mph8 km/h from E, gusts 8 mph12 km/h | 44% | 20% | 3 |
| Sat 5p | Sunny | 62°17° (likely 59°15° to 62°17°) | 62°17° | 0% | 5 mph8 km/h from E, gusts 8 mph13 km/h | 46% | 21% | 1 |
| Sat 6p | Clear | 58°14° (likely 56°13° to 59°15°) | 58°14° | 0% | 5 mph8 km/h from E, gusts 9 mph15 km/h | 53% | 17% | 0 |
| Sat 7p | Clear | 53°12° (likely 52°11° to 55°13°) | 53°12° | 0% | 5 mph8 km/h from E, gusts 8 mph13 km/h | 66% | 15% | 0 |
| Sat 8p | Clear | 51°11° (likely 50°10° to 52°11°) | 51°11° | 0% | 3 mph5 km/h from E, gusts 8 mph12 km/h | 74% | 7% | 0 |
| Sat 9p | Clear | 49°9° (likely 48°9° to 50°10°) | 49°9° | 0% | 2 mph3 km/h from E, gusts 6 mph10 km/h | 77% | 0% | 0 |
| Sat 10p | Clear | 46°8° (likely 46°8° to 49°9°) | 46°8° | 0% | 2 mph3 km/h from E, gusts 6 mph10 km/h | 86% | 15% | 0 |
| Sat 11p | Mostly clear | 45°7° (likely 45°7° to 48°9°) | 45°7° | 0% | 2 mph3 km/h from E, gusts 6 mph10 km/h | 86% | 25% | 0 |
| Sun 12a | Clear | 44°7° (likely 44°7° to 48°9°) | 44°7° | 0% | 2 mph3 km/h from E, gusts 7 mph11 km/h | 93% | 17% | 0 |
| Sun 1a | Clear | 44°7° (likely 44°7° to 47°8°) | 44°7° | 0% | 1 mph2 km/h from E, gusts 6 mph10 km/h | 93% | 41% | 0 |
| Sun 2a | Fog | 43°6° (likely 43°6° to 48°9°) | 43°6° | 0% | 1 mph2 km/h from NE, gusts 5 mph8 km/h | 100% | 49% | 0 |
| Sun 3a | Clear | 41°5° (likely 41°5° to 47°8°) | 41°5° | 0% | 1 mph2 km/h from NE, gusts 4 mph7 km/h | 100% | 17% | 0 |
| Sun 4a | Clear | 40°4° (likely 40°4° to 45°7°) | 40°4° | 0% | 1 mph2 km/h from NE, gusts 5 mph7 km/h | 100% | 2% | 0 |
| Sun 5a | Clear | 40°4° (likely 40°4° to 44°7°) | 40°4° | 0% | 2 mph3 km/h from NE, gusts 5 mph7 km/h | 100% | 2% | 0 |
| Sun 6a | Clear | 39°4° (likely 39°4° to 43°6°) | 39°4° | 0% | 1 mph2 km/h from N, gusts 5 mph7 km/h | 100% | 2% | 0 |
| Sun 7a | Sunny | 39°4° (likely 39°4° to 43°6°) | 39°4° | 0% | 1 mph2 km/h from N, gusts 6 mph10 km/h | 100% | 6% | 0 |
| Sun 8a | Sunny | 39°4° (likely 39°4° to 43°6°) | 39°4° | 0% | 2 mph3 km/h from N, gusts 6 mph10 km/h | 100% | 1% | 0 |
| Sun 9a | Sunny | 45°7° (likely 45°7° to 48°9°) | 45°7° | 0% | 2 mph3 km/h from N, gusts 7 mph12 km/h | 93% | 3% | 1 |
| Sun 10a | Mostly sunny | 52°11° (likely 52°11° to 53°12°) | 52°11° | 0% | 2 mph3 km/h from N, gusts 8 mph12 km/h | 74% | 11% | 2 |
| Sun 11a | Mostly sunny | 57°14° (likely 57°14° to 59°15°) | 57°14° | 0% | 2 mph3 km/h from NE, gusts 8 mph12 km/h | 64% | 11% | 3 |
| Sun 12p | Mostly sunny | 60°16° (likely 59°15° to 62°17°) | 60°16° | 0% | 2 mph3 km/h from NE, gusts 7 mph12 km/h | 55% | 8% | 4 |
| Sun 1p | Mostly sunny | 62°17° (likely 61°16° to 64°18°) | 62°17° | 0% | 1 mph2 km/h from E, gusts 6 mph9 km/h | 52% | 16% | 4 |
| Sun 2p | Sunny | 65°18° (likely 61°16° to 65°18°) | 65°18° | 0% | 1 mph2 km/h from E, gusts 6 mph9 km/h | 45% | 34% | 4 |
| Sun 3p | Sunny | 66°19° (likely 62°17° to 66°19°) | 66°19° | 0% | 2 mph3 km/h from E, gusts 6 mph10 km/h | 43% | 17% | 4 |
| Sun 4p | Sunny | 66°19° (likely 62°17° to 66°19°) | 66°19° | 0% | 2 mph3 km/h from E, gusts 6 mph9 km/h | 42% | 14% | 3 |
| Sun 5p | Sunny | 65°18° (likely 61°16° to 65°18°) | 65°18° | 0% | 1 mph2 km/h from SE, gusts 6 mph10 km/h | 45% | 3% | 1 |
| Sun 6p | Clear | 62°17° (likely 58°14° to 62°17°) | 62°17° | 0% | 1 mph2 km/h from SE, gusts 5 mph8 km/h | 50% | 0% | 0 |
| Sun 7p | Clear | 57°14° (likely 54°12° to 57°14°) | 57°14° | 0% | 1 mph2 km/h from SE, gusts 3 mph5 km/h | 64% | 0% | 0 |
| Sun 8p | Clear | 54°12° (likely 52°11° to 54°12°) | 54°12° | 0% | 1 mph2 km/h from SE, gusts 3 mph5 km/h | 74% | 0% | 0 |
| Sun 9p | Clear | 52°11° (likely 49°9° to 52°11°) | 52°11° | 0% | 1 mph2 km/h from SE, gusts 3 mph5 km/h | 80% | 0% | 0 |
| Sun 10p | Clear | 50°10° (likely 47°8° to 51°11°) | 50°10° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 86% | 0% | 0 |
| Sun 11p | Clear | 48°9° (likely 46°8° to 49°9°) | 48°9° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 89% | 0% | 0 |
| Mon 12a | Clear | 46°8° (likely 45°7° to 49°9°) | 46°8° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 93% | 0% | 0 |
| Mon 1a | Clear | 45°7° (likely 43°6° to 49°9°) | 45°7° | 0% | 1 mph2 km/h from SW, gusts 5 mph7 km/h | 96% | 0% | 0 |
| Mon 2a | Clear | 45°7° (likely 42°6° to 49°9°) | 45°7° | 0% | 2 mph3 km/h from W, gusts 4 mph7 km/h | 93% | 0% | 0 |
| Mon 3a | Clear | 44°7° (likely 40°4° to 50°10°) | 44°7° | 0% | 2 mph3 km/h from W, gusts 3 mph5 km/h | 96% | 0% | 0 |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Mostly sunny. High 63°17°, low 40°4°. Typical 66°19° / 49°9°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 40°4°Dry
Afternoon
noon–6 PM
Sunny, 63°17°Dry
Evening
6 PM–midnight
Clear, 51°11°Dry
Overnight
midnight–6 AM
Clear, 40°4°Dry
Official NWS forecast
Today: Sunny, with a high near 63. East wind around 5 mph.
Tonight: Patchy fog before 5am. Clear, with a low around 40. North wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 60°16°–63°17°
- Low, likely
- 38°3°–41°5°
- Typical high / low
- 66°19° / 49°9°
- Wind
- 7 mph11 km/h, gusts 13 mph21 km/h
- UV peak
- 4
Tomorrow, Oct 25. Sunny. High 66°19°, low 40°4°. Typical 66°19° / 49°9°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 39°4°Dry
Afternoon
noon–6 PM
Sunny, 66°19°Dry
Evening
6 PM–midnight
Clear, 54°12°Dry
Overnight
midnight–6 AM
Clear, 43°6°Dry
Official NWS forecast
Day: Patchy fog before 8am. Sunny, with a high near 66. East wind around 2 mph.
Night: Clear, with a low around 40. Southwest wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 62°17°–66°19°
- Low, likely
- 40°4°–43°6°
- Typical high / low
- 66°19° / 49°9°
- Wind
- 6 mph10 km/h
- UV peak
- 4
Monday, Oct 26. Sunny. High 69°21°, low 49°9°. Typical 66°19° / 48°9°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 42°6°Dry
Afternoon
noon–6 PM
Sunny, 67°19°Dry
Evening
6 PM–midnight
Clear, 56°13°Dry
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 69.
Night: Clear, with a low around 49.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 67°19°–69°21°
- Low, likely
- 38°3°–49°9°
- Typical high / low
- 66°19° / 48°9°
- Wind
- 7 mph11 km/h, gusts 14 mph23 km/h
- UV peak
- 4
Tuesday, Oct 27. Mostly sunny. High 66°19°, low 46°8°. Typical 65°18° / 48°9°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 49°9°Dry
Afternoon
noon–6 PM
Sunny, 67°19°Dry
Evening
6 PM–midnight
Clear, 56°13°Dry
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 66.
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°–50°10°
- Typical high / low
- 65°18° / 48°9°
- Wind
- 9 mph14 km/h, gusts 26 mph41 km/h
- UV peak
- 4
Wednesday, Oct 28. Mostly cloudy. High 64°18°, low 48°9°. Typical 65°18° / 48°9°. Dry. Forecasts differ.
Morning
6 AM–noon
Mostly sunny, 46°8°Dry
Afternoon
noon–6 PM
Cloudy, 63°17°Dry
Evening
6 PM–midnight
Cloudy, 54°12°Dry
Overnight
midnight–6 AM
Clear, 47°8°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 64.
Night: Mostly cloudy, with a low around 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 60°16°–65°18°
- Low, likely
- 44°7°–48°9°
- Typical high / low
- 65°18° / 48°9°
- Wind
- 6 mph10 km/h, gusts 15 mph23 km/h
- UV peak
- 4
Thursday, Oct 29. Partly sunny. High 69°21°, low 50°10°. Typical 65°18° / 47°8°. Dry. Mostly agree.
Morning
6 AM–noon
Mostly sunny, 47°8°Dry
Afternoon
noon–6 PM
Sunny, 66°19°Dry
Evening
6 PM–midnight
Clear, 57°14°Dry
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 69.
Night: Mostly clear, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 64°18°–69°21°
- Low, likely
- 45°7°–50°10°
- Typical high / low
- 65°18° / 47°8°
- Wind
- 7 mph10 km/h, gusts 22 mph36 km/h
- UV peak
- 4
Friday, Oct 30. Mostly sunny. High 72°22°, low 47°8°. Typical 64°18° / 47°8°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 48°9°Dry
Afternoon
noon–6 PM
Sunny, 71°21°Dry
Evening
6 PM–midnight
Mostly clear, 60°15°Dry
Overnight
midnight–6 AM
Partly cloudy, 49°9°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 72.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 68°20°–74°23°
- Low, likely
- 44°7°–49°9°
- Typical high / low
- 64°18° / 47°8°
- Wind
- 7 mph12 km/h, gusts 20 mph33 km/h
- UV peak
- 4
Saturday, Oct 31. Cloudy. High 69°21°, low 48°9°. Typical 64°18° / 46°8°. Dry. Forecasts differ.
Morning
6 AM–noon
Mostly sunny, 47°9°Dry
Afternoon
noon–6 PM
Cloudy, 68°20°Dry
Evening
6 PM–midnight
Partly cloudy, 58°15°Dry
Overnight
midnight–6 AM
Cloudy, 51°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
- 65°18°–72°22°
- Low, likely
- 42°6°–54°12°
- Typical high / low
- 64°18° / 46°8°
- Wind
- 7 mph12 km/h, gusts 21 mph34 km/h
- UV peak
- 3
Sunday, Nov 1. Cloudy. High 68°20°, low 50°10°. Typical 64°18° / 46°8°. Dry. Forecasts differ.
Morning
6 AM–noon
Cloudy, 50°10°Dry
Afternoon
noon–6 PM
Cloudy, 67°19°Dry
Evening
6 PM–midnight
Cloudy, 61°16°Dry
Overnight
midnight–6 AM
Cloudy, 57°14°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
- 62°17°–72°22°
- Low, likely
- 47°8°–53°12°
- Typical high / low
- 64°18° / 46°8°
- Wind
- 9 mph14 km/h, gusts 21 mph34 km/h
- UV peak
- 2
Monday, Nov 2. Cloudy. High 66°19°, low 58°14°. Typical 63°17° / 46°8°. Rain 0.16 in4.1 mm, 20% chance. Forecasts differ.
Morning
6 AM–noon
Cloudy, 61°16°Dry
Afternoon
noon–6 PM
Cloudy, 67°20°20% chance · 0.07 in1.8 mm
Evening
6 PM–midnight
Cloudy, 61°16°20% chance · 0.04 in1.1 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
- 63°17°–72°22°
- Low, likely
- 58°14°–59°15°
- Typical high / low
- 63°17° / 46°8°
- Wind
- 14 mph23 km/h, gusts 30 mph48 km/h
- UV peak
- 2
The outlook
Today
Dry, high 63°, low 40°.
Tomorrow
Dry, high 66°, low 40°, warming up.
Monday
Dry, high 69°, low 49°, warming up.
Rest of week
Mostly dry, highs 64–72°.
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
Holmes Run at Fairview Lake
1.9 mi- Level
- 310 ft
Reading from Sat 2:40 AM · NWS gauge page
Tripps Run at Falls Church, VA
2.9 mi- Level
- 0.8 ft
Reading from Sat 3 AM · NWS gauge page
Rocky Run near Tysons Corner (Pulte/McLean Regional Pond)
3.1 mi- Level
- 342 ft
Reading from Sat 2:35 AM · NWS gauge page
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
About 53% less heating than a typical week.
This week 28Typical 59
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 21
- 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 9 hours are near freezing and damp, when outdoor units defrost more often.
Comfort
Dry air outside (dew point 43°F).
Open the windows?
Today, 1:00 PM–5:00 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 3°2° colder than typical.
- Normal high / low
- 66°19° / 49°9°
- Forecast high / low
- 63°17° / 40°4°
- Record high
- 84°29° in 2001
- Record low
- 29°−2° in 1895
Last 7 days vs normal
On average 3°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
- —FriOct 23
- —SatOct 24
Dunn Loring weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:27 AM, sunset 6:18 PM.
- Daylight
- 10 h 50 min
- Losing 2 min 25 s a day; shortest Dec 21, 1 h 24 min less
- Golden hour
- 5:41–6:34 PM
- Morning 7:10–8:04 AM
- Blue hour
- 6:34–6:45 PM
- Morning 7:00–7:10 AM; first light 7:00 AM
Stars tonight? Good
Clear 4:35–7 AM; moon 96% lit, sets 5:40 AM.
Moon
Waxing gibbous
96% lit · growing
- Today
- sets 5:40 AM · rises 5:14 PM
- Full moon
- Oct 26
- New moon
- Nov 9
