Potomac River at Alexandria
1.4 mi- Level
- 1.6 ft
Forecast peak 3.0 ft Sun 7 PM, action stage
Reading from Sun 4:42 PM · NWS gauge page
Observed 5:05 PM EDT at KDCA
Forest Heights, MD weather
Sunny and 64°18°, jacket by 8 PM.
Today: low 45°7°, high 67°19°.
Now 64°18°
Sunny
- Wind
- 6 mph9 km/h
- From the south. Up to 6 mph9 km/h through 5 AM
- Dew point
- 48°9°
- Comfortable
- Air quality
- 41Good
- Main pollutant: Ozone
Next 48 hours
About the same as this time yesterday (63°17° then, 65°18° now)
Good hours for
TonightDown to 45°7° by 5 AM
Tomorrow morningUp to 61°16° by 11 AM
Tomorrow afternoonUp to 71°22° by 4 PM
Tomorrow nightDown to 51°11° by 4 AM
Tuesday morningUp to 63°17° by 11 AM
Tuesday afternoonUp to 70°21° by 3 PM
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sun 5p | Sunny | 66°19° (likely 63°17° to 66°19°) | 66°19° | 0% | 3 mph5 km/h from S | 45% | — | — |
| Sun 6p | Clear | 63°17° (likely 59°15° to 63°17°) | 63°17° | 0% | 3 mph5 km/h from S | 52% | — | — |
| Sun 7p | Clear | 58°14° (likely 55°13° to 58°14°) | 58°14° | 0% | 2 mph3 km/h from SE | 62% | — | — |
| Sun 8p | Clear | 55°13° (likely 52°11° to 55°13°) | 55°13° | 0% | 2 mph3 km/h from SE | 69% | — | — |
| Sun 9p | Clear | 52°11° (likely 51°11° to 52°11°) | 52°11° | 0% | 2 mph3 km/h from SE | 77% | — | — |
| Sun 10p | Clear | 50°10° (likely 50°10° to 50°10°) | 50°10° | 0% | 1 mph2 km/h from SE | 83% | — | — |
| Sun 11p | Clear | 49°9° (likely 49°9° to 49°9°) | 49°9° | 0% | 0 mph0 km/h | 86% | — | — |
| Mon 12a | Clear | 47°8° (likely 47°8° to 48°9°) | 47°8° | 0% | 0 mph0 km/h | 93% | — | — |
| Mon 1a | Clear | 47°8° (likely 47°8° to 47°8°) | 47°8° | 0% | 0 mph0 km/h | 89% | — | — |
| Mon 2a | Clear | 46°8° (likely 46°8° to 46°8°) | 46°8° | 0% | 1 mph2 km/h from S | 93% | — | — |
| Mon 3a | Clear | 46°8° (likely 45°7° to 46°8°) | 46°8° | 0% | 1 mph2 km/h from SW | 93% | — | — |
| Mon 4a | Clear | 46°8° (likely 44°7° to 46°8°) | 46°8° | 0% | 1 mph2 km/h from SW | 93% | — | — |
| Mon 5a | Mostly clear | 45°7° (likely 44°7° to 45°7°) | 45°7° | 0% | 1 mph2 km/h from W | 96% | — | — |
| Mon 6a | Mostly clear | 45°7° (likely 44°7° to 45°7°) | 45°7° | 0% | 1 mph2 km/h from W | 93% | — | — |
| Mon 7a | Mostly sunny | 45°7° (likely 43°6° to 45°7°) | 45°7° | 0% | 1 mph2 km/h from SW | 89% | — | — |
| Mon 8a | Fog | 45°7° (likely 44°7° to 45°7°) | 45°7° | 0% | 2 mph3 km/h from W | 89% | — | — |
| Mon 9a | Partly sunny | 51°11° (likely 47°8° to 51°11°) | 51°11° | 0% | 2 mph3 km/h from W | 77% | — | — |
| Mon 10a | Partly sunny | 56°13° (likely 52°11° to 56°13°) | 56°13° | 0% | 2 mph3 km/h from W | 69% | — | — |
| Mon 11a | Mostly sunny | 61°16° (likely 58°14° to 61°16°) | 61°16° | 0% | 3 mph5 km/h from W | 60% | — | — |
| Mon 12p | Mostly sunny | 64°18° (likely 63°17° to 64°18°) | 64°18° | 0% | 5 mph8 km/h from W | 52% | — | — |
| Mon 1p | Sunny | 67°19° (likely 66°19° to 67°19°) | 67°19° | 0% | 5 mph8 km/h from NW | 45% | — | — |
| Mon 2p | Sunny | 69°21° (likely 68°20° to 69°21°) | 69°21° | 0% | 5 mph8 km/h from NW | 40% | — | — |
| Mon 3p | Sunny | 70°21° (likely 69°21° to 70°21°) | 70°21° | 0% | 5 mph8 km/h from NW | 39% | — | — |
| Mon 4p | Sunny | 71°22° (likely 69°21° to 71°22°) | 71°22° | 0% | 5 mph8 km/h from NW | 38% | — | — |
| Mon 5p | Sunny | 70°21° (likely 67°19° to 70°21°) | 70°21° | 0% | 5 mph8 km/h from NW | 39% | — | — |
| Mon 6p | Clear | 67°19° (likely 62°17° to 67°19°) | 67°19° | 0% | 2 mph3 km/h from NW | 43% | — | — |
| Mon 7p | Clear | 63°17° (likely 58°14° to 63°17°) | 63°17° | 0% | 2 mph3 km/h from W | 50% | — | — |
| Mon 8p | Clear | 58°14° (likely 56°13° to 58°14°) | 58°14° | 0% | 2 mph3 km/h from W | 62% | — | — |
| Mon 9p | Clear | 56°13° (likely 54°12° to 56°13°) | 56°13° | 0% | 1 mph2 km/h from SW | 69% | — | — |
| Mon 10p | Clear | 54°12° (likely 53°12° to 54°12°) | 54°12° | 0% | 2 mph3 km/h from W | 77% | — | — |
| Mon 11p | Clear | 53°12° (likely 52°11° to 53°12°) | 53°12° | 0% | 2 mph3 km/h from W | 80% | — | — |
| Tue 12a | Clear | 52°11° (likely 52°11° to 52°11°) | 52°11° | 0% | 2 mph3 km/h from NW | 83% | — | — |
| Tue 1a | Clear | 52°11° (likely 51°11° to 52°11°) | 52°11° | 0% | 2 mph3 km/h from NW | 83% | — | — |
| Tue 2a | Mostly clear | 52°11° (likely 51°11° to 52°11°) | 52°11° | 0% | 3 mph5 km/h from NW | 83% | — | — |
| Tue 3a | Mostly clear | 52°11° (likely 50°10° to 52°11°) | 52°11° | 0% | 3 mph5 km/h from NW | 83% | — | — |
| Tue 4a | Mostly clear | 51°11° (likely 50°10° to 51°11°) | 51°11° | 0% | 3 mph5 km/h from NW | 86% | — | — |
| Tue 5a | Mostly clear | 51°11° (likely 50°10° to 51°11°) | 51°11° | 0% | 3 mph5 km/h from NW | 86% | — | — |
| Tue 6a | Mostly clear | 51°11° (likely 50°10° to 51°11°) | 51°11° | 0% | 3 mph5 km/h from N | 86% | — | — |
| Tue 7a | Sunny | 50°10° (likely 50°10° to 50°10°) | 48°9° | 0% | 5 mph8 km/h from N | 89% | — | — |
| Tue 8a | Sunny | 51°11° (likely 50°10° to 51°11°) | 51°11° | 0% | 5 mph8 km/h from N | 86% | — | — |
| Tue 9a | Sunny | 55°13° (likely 55°13° to 55°13°) | 55°13° | 0% | 5 mph8 km/h from N | 77% | — | — |
| Tue 10a | Sunny | 59°15° (likely 59°15° to 59°15°) | 59°15° | 0% | 5 mph8 km/h from N | 67% | — | — |
| Tue 11a | Mostly sunny | 63°17° (likely 63°17° to 63°17°) | 63°17° | 0% | 6 mph10 km/h from NE | 60% | — | — |
| Tue 12p | Mostly sunny | 66°19° (likely 66°19° to 66°19°) | 66°19° | 0% | 6 mph10 km/h from NE | 52% | — | — |
| Tue 1p | Mostly sunny | 68°20° (likely 68°20° to 68°20°) | 68°20° | 0% | 5 mph8 km/h from N | 49% | — | — |
| Tue 2p | Mostly sunny | 69°21° (likely 69°21° to 69°21°) | 69°21° | 0% | 5 mph8 km/h from N | 47% | — | — |
| Tue 3p | Mostly sunny | 70°21° (likely 70°21° to 70°21°) | 70°21° | 0% | 5 mph8 km/h from NE | 47% | — | — |
| Tue 4p | Mostly sunny | 70°21° (likely 70°21° to 70°21°) | 70°21° | 0% | 5 mph8 km/h from NE | 47% | — | — |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 25. Sunny. High 67°19°, low 45°7°. Typical 66°19° / 49°9°. Dry. One forecast only.
Evening
6 PM–midnight
Clear, 55°13°Dry
Overnight
midnight–6 AM
Clear, 45°7°Dry
Official NWS forecast
Today: Sunny, with a high near 67. South wind around 3 mph.
Tonight: Clear, with a low around 45. South wind 0 to 3 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 67°19°
- Low, likely
- 45°7°
- Typical high / low
- 66°19° / 49°9°
- Wind
- 3 mph5 km/h
Tomorrow, Oct 26. Fog. High 71°22°, low 50°10°. Typical 66°19° / 48°9°. Dry. One forecast only.
Morning
6 AM–noon
Partly sunny, 45°7°Dry
Afternoon
noon–6 PM
Sunny, 71°22°Dry
Evening
6 PM–midnight
Clear, 58°14°Dry
Overnight
midnight–6 AM
Mostly clear, 51°11°Dry
Official NWS forecast
Day: Patchy fog between 8am and 9am. Sunny, with a high near 71. West wind 1 to 5 mph.
Night: Clear, with a low around 50. West wind around 3 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 68°20°–71°22°
- Low, likely
- 43°6°–50°10°
- Typical high / low
- 66°19° / 48°9°
- Wind
- 5 mph8 km/h
Tuesday, Oct 27. Mostly sunny. High 70°21°, low 49°9°. Typical 65°18° / 48°9°. Dry. One forecast only.
Morning
6 AM–noon
Sunny, 51°11°Dry
Afternoon
noon–6 PM
Mostly sunny, 70°21°Dry
Official NWS forecast
Day: Sunny, with a high near 70. North wind around 6 mph.
Night: Mostly clear, with a low around 49.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 69°21°–70°21°
- Low, likely
- 49°9°
- Typical high / low
- 65°18° / 48°9°
- Wind
- 6 mph9 km/h
Wednesday, Oct 28. Mostly cloudy. High 68°20°, low 50°10°. Typical 65°18° / 48°9°. Dry. One forecast only.
Official NWS forecast
Day: Partly sunny, with a high near 68.
Night: Mostly cloudy, with a low around 50.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 67°19°–68°20°
- Low, likely
- 50°10°
- Typical high / low
- 65°18° / 48°9°
- Wind
- 5 mph8 km/h
Thursday, Oct 29. Partly sunny. High 73°23°, low 51°11°. Typical 65°18° / 47°8°. Dry. One forecast only.
Official NWS forecast
Day: Mostly sunny, with a high near 73.
Night: Mostly clear, with a low around 51.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 69°21°–73°23°
- Low, likely
- 51°11°
- Typical high / low
- 65°18° / 47°8°
- Wind
- 5 mph8 km/h
Friday, Oct 30. Mostly sunny. High 77°25°, low 53°12°. Typical 64°18° / 47°8°. Dry. One forecast only.
Official NWS forecast
Day: Sunny, with a high near 77.
Night: Mostly clear, with a low around 53.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 75°24°–77°25°
- Low, likely
- 51°11°–53°12°
- Typical high / low
- 64°18° / 47°8°
- Wind
- 5 mph9 km/h
Saturday, Oct 31. Partly sunny. High 74°23°, low 56°13°. Typical 64°18° / 46°8°. Dry. One forecast only.
Official NWS forecast
Day: Mostly sunny, with a high near 74.
Night: Mostly cloudy, with a low around 56.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 68°20°–74°23°
- Low, likely
- 52°11°–56°13°
- Typical high / low
- 64°18° / 46°8°
- Wind
- 5 mph9 km/h
The outlook
Today
Dry, high 67°, low 45°.
Tomorrow
Dry, high 71°, low 50°, warming up.
Tuesday
Dry, high 70°, low 49°.
Rest of week
Mostly dry, highs 68–77°.
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
Washington Channel at SW Waterfront (IN MLLW)
4.8 mi- Level
- 2.6 ft
Forecast peak 4.4 ft Sun 7 PM, action stage
Reading from Sun 4:36 PM · NWS gauge page
Unnamed Tributary at Huntington Ponding Area
3.0 mi- Level
- 2.1 ft
Reading from Sun 4:45 PM · NWS gauge page
Unnamed Tributary at New Alexandria Pump Station - Upstream
3.1 mi- Level
- 1.4 ft
Reading from Sun 5 PM · NWS gauge page
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
About 70% less heating than a typical week.
This week 19Typical 61
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 9
- 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 48°F).
Open the windows?
Mon, 11:00 AM–7:00 PM
Good stretch to open the windows.
Is this typical?
Washington Reagan National Airport · official normals 1991–2020 · records 1872–2026
Oct 25, today vs a typical year
Today’s expected high is about typical for the date.
- Normal high / low
- 66°19° / 49°9°
- Forecast high / low
- 67°19° / 45°7°
- Record high
- 80°27° in 1902
- Record low
- 31°−1° in 1937
Last 7 days vs normal
On average 2°1° colder than normal (daily mean temperature).
- −4°−2°MonOct 19
- +1°±0°TueOct 20
- ±0°WedOct 21
- −1°ThuOct 22
- −1°FriOct 23
- −4°−2°SatOct 24
- —SunOct 25
Forest Heights weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:27 AM, sunset 6:15 PM.
- Daylight
- 10 h 48 min
- Losing 2 min 16 s a day; shortest Dec 21, 1 h 21 min less
- Golden hour
- 5:39–6:32 PM
- Morning 7:10–8:04 AM
- Blue hour
- 6:32–6:43 PM
- Morning 7:00–7:10 AM; first light 7:00 AM
Stars tonight? Unknown
Cloud forecast not available for tonight.
Moon
Full moon
100% lit · growing
- Today
- sets 6:49 AM · rises 5:42 PM
- Full moon
- Oct 26
- New moon
- Nov 9
