Potomac River at Alexandria
3.1 mi- Level
- 3.1 ft
Forecast peak 3.2 ft Sun 7 AM, action stage
Reading from Sat 8:42 PM · NWS gauge page
Observed 10:05 PM EDT at KDCA
Glassmanor, MD weather
Clear and 52°11°, 66°37° colder than a typical Oct 24.
Today: low 42°6°, high 0°−18°.
Now 52°11°
Clear
- Wind
- 3 mph5 km/h
- From the east-southeast. Light through 10 AM
- Dew point
- 45°7°
- Comfortable
- Air quality
- 39Good
- PM2.5 (fine particles) · tomorrow moderate
Next 48 hours
Good hours for
TonightDown to 44°7° by 5 AM
Tomorrow morningUp to 58°14° by 11 AM
Tomorrow afternoonUp to 66°19° by 3 PM
Tomorrow nightDown to 44°7° by 5 AM
Monday morningUp to 58°14° by 11 AM
Monday afternoonUp to 70°21° by 4 PM
Monday nightDown to 56°13° by 9 PM
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 10p | Mostly clear | 50°10° (likely 50°10° to 50°10°) | 49°9° | 0% | 3 mph5 km/h from E | 77% | — | — |
| Sat 11p | Mostly clear | 49°9° (likely 49°9° to 49°9°) | 48°9° | 0% | 3 mph5 km/h from E | 80% | — | — |
| Sun 12a | Mostly clear | 47°8° (likely 47°8° to 48°9°) | 46°8° | 0% | 3 mph5 km/h from E | 89% | — | — |
| Sun 1a | Mostly clear | 47°8° (likely 47°8° to 48°9°) | 47°8° | 0% | 2 mph3 km/h from E | 89% | — | — |
| Sun 2a | Mostly clear | 45°7° (likely 45°7° to 47°8°) | 45°7° | 0% | 2 mph3 km/h from NE | 96% | — | — |
| Sun 3a | Mostly clear | 45°7° (likely 45°7° to 46°8°) | 45°7° | 0% | 2 mph3 km/h from NE | 96% | — | — |
| Sun 4a | Mostly clear | 45°7° (likely 45°7° to 45°7°) | 45°7° | 0% | 2 mph3 km/h from NE | 93% | — | — |
| Sun 5a | Mostly clear | 44°7° (likely 44°7° to 44°7°) | 44°7° | 0% | 2 mph3 km/h from NE | 96% | — | — |
| Sun 6a | Mostly clear | 44°7° (likely 43°6° to 44°7°) | 44°7° | 0% | 2 mph3 km/h from NE | 96% | — | — |
| Sun 7a | Mostly sunny | 43°6° (likely 43°6° to 43°6°) | 41°5° | 0% | 3 mph5 km/h from NE | 96% | — | — |
| Sun 8a | Partly sunny | 45°7° (likely 43°6° to 45°7°) | 45°7° | 0% | 2 mph3 km/h from NE | 93% | — | — |
| Sun 9a | Partly sunny | 48°9° (likely 48°9° to 48°9°) | 47°8° | 0% | 3 mph5 km/h from NE | 86% | — | — |
| Sun 10a | Partly sunny | 54°12° (likely 53°12° to 54°12°) | 54°12° | 0% | 3 mph5 km/h from NE | 71% | — | — |
| Sun 11a | Mostly sunny | 58°14° (likely 58°14° to 58°14°) | 58°14° | 0% | 2 mph3 km/h from E | 64% | — | — |
| Sun 12p | Mostly sunny | 60°16° (likely 60°16° to 61°16°) | 60°16° | 0% | 2 mph3 km/h from E | 58% | — | — |
| Sun 1p | Mostly sunny | 64°18° (likely 63°17° to 64°18°) | 64°18° | 0% | 2 mph3 km/h from E | 48% | — | — |
| Sun 2p | Mostly sunny | 65°18° (likely 64°18° to 65°18°) | 65°18° | 0% | 2 mph3 km/h from E | 45% | — | — |
| Sun 3p | Mostly sunny | 66°19° (likely 65°18° to 66°19°) | 66°19° | 0% | 2 mph3 km/h from SE | 43% | — | — |
| Sun 4p | Mostly sunny | 65°18° (likely 65°18° to 65°18°) | 65°18° | 0% | 2 mph3 km/h from E | 45% | — | — |
| Sun 5p | Sunny | 65°18° (likely 64°18° to 65°18°) | 65°18° | 0% | 2 mph3 km/h from E | 45% | — | — |
| Sun 6p | Clear | 62°17° (likely 59°15° to 62°17°) | 62°17° | 0% | 2 mph3 km/h from E | 52% | — | — |
| Sun 7p | Clear | 59°15° (likely 55°13° to 59°15°) | 59°15° | 0% | 2 mph3 km/h from E | 57% | — | — |
| Sun 8p | Clear | 56°13° (likely 52°11° to 56°13°) | 56°13° | 0% | 2 mph3 km/h from E | 66% | — | — |
| Sun 9p | Clear | 51°11° (likely 51°11° to 51°11°) | 51°11° | 0% | 2 mph3 km/h from SE | 77% | — | — |
| Sun 10p | Clear | 49°9° (likely 49°9° to 50°10°) | 49°9° | 0% | 2 mph3 km/h from SE | 83% | — | — |
| Sun 11p | Clear | 48°9° (likely 48°9° to 49°9°) | 48°9° | 0% | 1 mph2 km/h from S | 86% | — | — |
| Mon 12a | Clear | 47°8° (likely 47°8° to 48°9°) | 47°8° | 0% | 1 mph2 km/h from S | 89% | — | — |
| Mon 1a | Clear | 46°8° (likely 46°8° to 47°8°) | 46°8° | 0% | 1 mph2 km/h from S | 89% | — | — |
| Mon 2a | Clear | 45°7° (likely 45°7° to 46°8°) | 45°7° | 0% | 2 mph3 km/h from W | 93% | — | — |
| Mon 3a | Clear | 45°7° (likely 45°7° to 45°7°) | 45°7° | 0% | 2 mph3 km/h from W | 93% | — | — |
| Mon 4a | Mostly clear | 45°7° (likely 45°7° to 45°7°) | 45°7° | 0% | 2 mph3 km/h from W | 89% | — | — |
| Mon 5a | Mostly clear | 44°7° (likely 44°7° to 45°7°) | 44°7° | 0% | 2 mph3 km/h from W | 93% | — | — |
| Mon 6a | Mostly clear | 44°7° (likely 44°7° to 44°7°) | 44°7° | 0% | 2 mph3 km/h from W | 89% | — | — |
| Mon 7a | Mostly sunny | 43°6° (likely 43°6° to 44°7°) | 43°6° | 0% | 2 mph3 km/h from W | 93% | — | — |
| Mon 8a | Mostly sunny | 44°7° (likely 44°7° to 44°7°) | 44°7° | 0% | 2 mph3 km/h from W | 93% | — | — |
| Mon 9a | Mostly sunny | 48°9° (likely 48°9° to 48°9°) | 48°9° | 0% | 2 mph3 km/h from W | 86% | — | — |
| Mon 10a | Mostly sunny | 53°12° (likely 53°12° to 53°12°) | 53°12° | 0% | 2 mph3 km/h from W | 74% | — | — |
| Mon 11a | Mostly sunny | 58°14° (likely 58°14° to 58°14°) | 58°14° | 0% | 3 mph5 km/h from W | 64% | — | — |
| Mon 12p | Mostly sunny | 63°17° (likely 63°17° to 63°17°) | 63°17° | 0% | 5 mph8 km/h from W | 54% | — | — |
| Mon 1p | Mostly sunny | 66°19° (likely 66°19° to 66°19°) | 66°19° | 0% | 6 mph10 km/h from NW | 48% | — | — |
| Mon 2p | Sunny | 68°20° (likely 68°20° to 68°20°) | 68°20° | 0% | 6 mph10 km/h from NW | 45% | — | — |
| Mon 3p | Sunny | 69°21° (likely 69°21° to 69°21°) | 69°21° | 0% | 7 mph11 km/h from NW | 44% | — | — |
| Mon 4p | Sunny | 70°21° (likely 70°21° to 70°21°) | 70°21° | 0% | 6 mph10 km/h from NW | 42% | — | — |
| Mon 5p | Sunny | 69°21° (likely 69°21° to 69°21°) | 69°21° | 0% | 5 mph8 km/h from NW | 45% | — | — |
| Mon 6p | Clear | 66°19° (likely 66°19° to 66°19°) | 66°19° | 0% | 3 mph5 km/h from NW | 50% | — | — |
| Mon 7p | Clear | 63°17° (likely 63°17° to 63°17°) | 63°17° | 0% | 3 mph5 km/h from NW | 56% | — | — |
| Mon 8p | Clear | 59°15° (likely 59°15° to 59°15°) | 59°15° | 0% | 2 mph3 km/h from NW | 67% | — | — |
| Mon 9p | Clear | 56°13° (likely 56°13° to 56°13°) | 56°13° | 0% | 2 mph3 km/h from NW | 72% | — | — |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Mostly sunny. High 0°−18°, low 42°6°. Typical 66°19° / 49°9°. Dry. One forecast only.
Evening
6 PM–midnight
Mostly clear, 49°9°Dry
Overnight
midnight–6 AM
Mostly clear, 44°7°Dry
Official NWS forecast
Tonight: Mostly clear, with a low around 42. Northeast wind around 3 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 0°−18°
- Low, likely
- 42°6°
- Typical high / low
- 66°19° / 49°9°
- Wind
- —
Tomorrow, Oct 25. Mostly sunny. High 66°19°, low 42°6°. Typical 66°19° / 49°9°. Dry. One forecast only.
Morning
6 AM–noon
Partly sunny, 45°7°Dry
Afternoon
noon–6 PM
Mostly sunny, 66°19°Dry
Evening
6 PM–midnight
Clear, 56°13°Dry
Overnight
midnight–6 AM
Clear, 44°7°Dry
Official NWS forecast
Day: Sunny, with a high near 66. East wind around 3 mph.
Night: Clear, with a low around 42. South wind around 2 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 65°18°–66°19°
- Low, likely
- 42°6°–43°6°
- Typical high / low
- 66°19° / 49°9°
- Wind
- 4 mph6 km/h
Monday, Oct 26. Mostly sunny. High 70°21°, low 49°9°. Typical 66°19° / 48°9°. Dry. One forecast only.
Morning
6 AM–noon
Mostly sunny, 44°7°Dry
Afternoon
noon–6 PM
Sunny, 70°21°Dry
Evening
6 PM–midnight
Clear, 59°15°Dry
Official NWS forecast
Day: Sunny, with a high near 70. West wind 2 to 7 mph.
Night: Mostly clear, with a low around 49. Northwest wind around 5 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 69°21°–70°21°
- Low, likely
- 44°7°–49°9°
- Typical high / low
- 66°19° / 48°9°
- Wind
- 5 mph8 km/h
Tuesday, Oct 27. Mostly sunny. High 69°21°, low 47°8°. Typical 65°18° / 48°9°. Dry. One forecast only.
Official NWS forecast
Day: Sunny, with a high near 69.
Night: Mostly clear, with a low around 47.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 69°21°–70°21°
- Low, likely
- 47°8°–50°10°
- Typical high / low
- 65°18° / 48°9°
- Wind
- 6 mph9 km/h
Wednesday, Oct 28. Partly sunny. High 66°19°, low 49°9°. Typical 65°18° / 48°9°. Dry. One forecast only.
Official NWS forecast
Day: Mostly sunny, with a high near 66.
Night: Mostly cloudy, with a low around 49.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 66°19°
- Low, likely
- 49°9°–50°10°
- Typical high / low
- 65°18° / 48°9°
- Wind
- 5 mph8 km/h
Thursday, Oct 29. Partly sunny. High 70°21°, low 50°10°. Typical 65°18° / 47°8°. Dry. One forecast only.
Official NWS forecast
Day: Mostly sunny, with a high near 70.
Night: Mostly clear, with a low around 50.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 70°21°
- Low, likely
- 50°10°–51°11°
- Typical high / low
- 65°18° / 47°8°
- Wind
- 5 mph9 km/h
Friday, Oct 30. Mostly sunny. High 74°23°, low 52°11°. Typical 64°18° / 47°8°. Dry. One forecast only.
Official NWS forecast
Day: Sunny, with a high near 74.
Night: Mostly clear, with a low around 52.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 74°23°–76°24°
- Low, likely
- 51°11°–52°11°
- Typical high / low
- 64°18° / 47°8°
- Wind
- 5 mph8 km/h
Saturday, Oct 31. Partly sunny. High 72°22°, low 52°11°. Typical 64°18° / 46°8°. Dry. One forecast only.
Official NWS forecast
Day: Mostly sunny, with a high near 72.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 72°22°
- Low, likely
- 52°11°
- Typical high / low
- 64°18° / 46°8°
- Wind
- 5 mph8 km/h
The outlook
Today
Dry, high 0°, low 42°.
Tomorrow
Dry, high 66°, low 42°, warming up.
Monday
Dry, high 70°, low 49°, warming up.
Rest of week
Mostly dry, highs 66–74°.
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
Action stage
Washington Channel at SW Waterfront (IN MLLW)
4.3 mi- Level
- 4.2 ft
Forecast peak 4.6 ft Sun 7 AM, action stage
Reading from Sat 9 PM · NWS gauge page
Anacostia River at Buzzard Point in Washington DC
3.6 mi- Level
- 2.9 ft
Reading from Sat 8:35 PM · NWS gauge page
Four Mile Run above Highway 1 at Alexandria
4.1 mi- Level
- 2.9 ft
Reading from Sat 8:12 PM · NWS gauge page
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
About 62% less heating than a typical week.
This week 23Typical 59
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 18
- h below 17°F
- 0
- h below 5°F
- 0
47, 17 and 5°F are the test points heat pumps are rated at.
Comfort
Dry air outside (dew point 45°F).
Open the windows?
Sun, 12:00 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 66°37° colder than typical.
- Normal high / low
- 66°19° / 49°9°
- Forecast high / low
- 0°−18° / 42°6°
- Record high
- 84°29° in 2001
- Record low
- 29°−2° in 1895
Last 7 days vs normal
On average 1° colder than normal (daily mean temperature).
- −4°−2°MonOct 19
- +1°±0°TueOct 20
- ±0°WedOct 21
- −1°ThuOct 22
- −1°FriOct 23
- —SatOct 24
- —SunOct 25
Glassmanor weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:26 AM, sunset 6:17 PM.
- Daylight
- 10 h 51 min
- Losing 2 min 21 s a day; shortest Dec 21, 1 h 24 min less
- Golden hour
- 5:40–6:33 PM
- Morning 7:09–8:03 AM
- Blue hour
- 6:33–6:44 PM
- Morning 6:59–7:09 AM; first light 6:59 AM
Stars tonight? Unknown
Cloud forecast not available for tonight.
Moon
Waxing gibbous
98% lit · growing
- Today
- sets 5:39 AM · rises 5:13 PM
- Full moon
- Oct 26
- New moon
- Nov 9
