Northwest Branch Patapsco River at Baltimore/Fort McHenry (IN MLLW)
5.1 mi- Level
- 2.8 ft
Forecast peak 2.9 ft Sat 6 PM, action stage
Reading from Sat 6:36 AM · NWS gauge page
Observed 7:20 AM EDT at KBWI
Lansdowne, MD weather
Clear and 41°5°.
Today: low 42°6° (likely 39°4° to 42°6°), high 63°17° (likely 60°16° to 63°17°).
Now 41°5°
Clear
- Wind
- Calm
- Up to 5 mph8 km/h through 7 PM
- Dew point
- 37°3°
- Comfortable
- UV index
- 0Low
- Moderate 11 AM–5 PM · peak 4
- Air quality
- 44Good
- PM2.5 (fine particles) · tomorrow moderate
- Pressure
- 30.52 inHg1034 hPa
- Rising slowly · +0.03 inHg+1.1 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 58°14° by 11 AM · Clear
This afternoonNear 61°16° · Clear
TonightDown to 43°6° by 5 AM · Clear
Tomorrow morningUp to 60°16° by 11 AM · Clear
Tomorrow afternoonUp to 67°19° by 4 PM · Clear
Tomorrow nightDown to 43°6° by 5 AM · Clear
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| 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% | 13% | 0 |
| Sat 8a | Sunny | 41°5° (likely 39°4° to 42°6°) | 41°5° | 0% | 2 mph3 km/h from N, gusts 5 mph8 km/h | 92% | 14% | 0 |
| Sat 9a | Sunny | 48°9° (likely 44°7° to 48°9°) | 48°9° | 0% | 2 mph3 km/h from N, gusts 5 mph7 km/h | 74% | 9% | 1 |
| Sat 10a | Sunny | 53°12° (likely 50°10° to 53°12°) | 53°12° | 0% | 2 mph3 km/h from NE, gusts 7 mph11 km/h | 64% | 0% | 2 |
| Sat 11a | Sunny | 58°14° (likely 54°12° to 58°14°) | 58°14° | 0% | 3 mph5 km/h from E, gusts 7 mph12 km/h | 51% | 0% | 3 |
| Sat 12p | Sunny | 60°16° (likely 57°14° to 60°16°) | 60°16° | 0% | 3 mph5 km/h from E, gusts 9 mph15 km/h | 47% | 0% | 4 |
| Sat 1p | Sunny | 61°16° (likely 59°15° to 61°16°) | 61°16° | 0% | 5 mph8 km/h from E, gusts 8 mph13 km/h | 44% | 0% | 4 |
| Sat 2p | Sunny | 63°17° (likely 60°16° to 63°17°) | 63°17° | 0% | 5 mph8 km/h from E, gusts 8 mph13 km/h | 39% | 0% | 4 |
| Sat 3p | Sunny | 63°17° (likely 60°16° to 63°17°) | 63°17° | 0% | 5 mph8 km/h from E, gusts 7 mph11 km/h | 39% | 0% | 4 |
| Sat 4p | Sunny | 63°17° (likely 60°16° to 63°17°) | 63°17° | 0% | 5 mph8 km/h from E, gusts 6 mph10 km/h | 39% | 0% | 3 |
| Sat 5p | Sunny | 62°17° (likely 59°15° to 62°17°) | 62°17° | 0% | 3 mph5 km/h from E, gusts 6 mph10 km/h | 41% | 0% | 1 |
| Sat 6p | Clear | 59°15° (likely 55°13° to 59°15°) | 59°15° | 0% | 2 mph3 km/h from E, gusts 6 mph9 km/h | 47% | 0% | 0 |
| Sat 7p | Clear | 55°13° (likely 52°11° to 55°13°) | 55°13° | 0% | 2 mph3 km/h from E, gusts 4 mph7 km/h | 57% | 0% | 0 |
| Sat 8p | Clear | 53°12° (likely 50°10° to 53°12°) | 53°12° | 0% | 1 mph2 km/h from NE, gusts 3 mph6 km/h | 64% | 0% | 0 |
| Sat 9p | Clear | 50°10° (likely 49°9° to 51°11°) | 50°10° | 0% | 1 mph2 km/h from NE, gusts 4 mph7 km/h | 74% | 0% | 0 |
| Sat 10p | Clear | 48°9° (likely 48°9° to 50°10°) | 48°9° | 0% | 1 mph2 km/h from NE, gusts 5 mph8 km/h | 80% | 0% | 0 |
| Sat 11p | Clear | 48°9° (likely 47°8° to 49°9°) | 48°9° | 0% | 1 mph2 km/h from NE, gusts 5 mph7 km/h | 80% | 1% | 0 |
| Sun 12a | Clear | 47°8° (likely 45°7° to 48°9°) | 47°8° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 83% | 0% | 0 |
| Sun 1a | Clear | 46°8° (likely 44°7° to 47°8°) | 46°8° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 86% | 0% | 0 |
| Sun 2a | Clear | 45°7° (likely 43°6° to 47°8°) | 45°7° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 89% | 0% | 0 |
| Sun 3a | Clear | 45°7° (likely 41°5° to 46°8°) | 45°7° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 89% | 1% | 0 |
| Sun 4a | Clear | 44°7° (likely 40°4° to 46°8°) | 44°7° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 93% | 8% | 0 |
| Sun 5a | Clear | 43°6° (likely 40°4° to 46°8°) | 43°6° | 0% | 1 mph2 km/h from N, gusts 5 mph8 km/h | 96% | 9% | 0 |
| Sun 6a | Clear | 42°6° (likely 39°4° to 45°7°) | 42°6° | 0% | 1 mph2 km/h from N, gusts 5 mph7 km/h | 96% | 12% | 0 |
| Sun 7a | Sunny | 42°6° (likely 39°4° to 43°6°) | 42°6° | 0% | 1 mph2 km/h from N, gusts 5 mph9 km/h | 93% | 13% | 0 |
| Sun 8a | Sunny | 43°6° (likely 39°4° to 43°6°) | 43°6° | 0% | 1 mph2 km/h from N, gusts 6 mph9 km/h | 89% | 14% | 0 |
| Sun 9a | Sunny | 49°9° (likely 44°7° to 49°9°) | 49°9° | 0% | 1 mph2 km/h from N, gusts 5 mph7 km/h | 77% | 2% | 1 |
| Sun 10a | Sunny | 56°13° (likely 52°11° to 56°13°) | 56°13° | 0% | 1 mph2 km/h from NE, gusts 6 mph9 km/h | 62% | 3% | 2 |
| Sun 11a | Sunny | 60°16° (likely 57°14° to 60°16°) | 60°16° | 0% | 2 mph3 km/h from NE, gusts 6 mph9 km/h | 55% | 4% | 3 |
| Sun 12p | Sunny | 62°17° (likely 59°15° to 62°17°) | 62°17° | 0% | 2 mph3 km/h from E, gusts 6 mph9 km/h | 50% | 7% | 4 |
| Sun 1p | Sunny | 64°18° (likely 61°16° to 64°18°) | 64°18° | 0% | 2 mph3 km/h from E, gusts 5 mph9 km/h | 45% | 9% | 4 |
| Sun 2p | Mostly sunny | 66°19° (likely 62°17° to 66°19°) | 66°19° | 0% | 2 mph3 km/h from SE, gusts 6 mph9 km/h | 40% | 10% | 4 |
| Sun 3p | Sunny | 66°19° (likely 63°17° to 66°19°) | 66°19° | 0% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 40% | 6% | 4 |
| Sun 4p | Sunny | 67°19° (likely 63°17° to 67°19°) | 67°19° | 0% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 40% | 5% | 3 |
| Sun 5p | Sunny | 66°19° (likely 62°17° to 66°19°) | 66°19° | 0% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 42% | 11% | 1 |
| Sun 6p | Clear | 61°16° (likely 58°14° to 61°16°) | 61°16° | 0% | 2 mph3 km/h from SE, gusts 5 mph7 km/h | 51% | 1% | 0 |
| Sun 7p | Clear | 56°13° (likely 54°12° to 56°13°) | 56°13° | 0% | 1 mph2 km/h from S, gusts 5 mph8 km/h | 64% | 1% | 0 |
| Sun 8p | Clear | 53°12° (likely 52°11° to 54°12°) | 53°12° | 0% | 1 mph2 km/h from S, gusts 3 mph5 km/h | 74% | 1% | 0 |
| Sun 9p | Clear | 50°10° (likely 50°10° to 53°12°) | 50°10° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 83% | 0% | 0 |
| Sun 10p | Clear | 49°9° (likely 48°9° to 51°11°) | 49°9° | 0% | 0 mph0 km/h, gusts 2 mph4 km/h | 86% | 0% | 0 |
| Sun 11p | Clear | 47°8° (likely 47°8° to 50°10°) | 47°8° | 0% | 1 mph2 km/h from W, gusts 3 mph5 km/h | 89% | 0% | 0 |
| Mon 12a | Clear | 46°8° (likely 46°8° to 49°9°) | 46°8° | 0% | 1 mph2 km/h from W, gusts 3 mph5 km/h | 89% | 0% | 0 |
| Mon 1a | Clear | 45°7° (likely 45°7° to 49°9°) | 45°7° | 0% | 1 mph2 km/h from W, gusts 3 mph5 km/h | 93% | 0% | 0 |
| Mon 2a | Clear | 45°7° (likely 43°6° to 50°10°) | 45°7° | 0% | 1 mph2 km/h from W, gusts 4 mph7 km/h | 93% | 0% | 0 |
| Mon 3a | Clear | 45°7° (likely 41°5° to 53°12°) | 45°7° | 0% | 1 mph2 km/h from W, gusts 5 mph9 km/h | 93% | 8% | 0 |
| Mon 4a | Clear | 44°7° (likely 41°5° to 53°12°) | 44°7° | 0% | 2 mph3 km/h from W, gusts 5 mph9 km/h | 93% | 14% | 0 |
| Mon 5a | Clear | 43°6° (likely 41°5° to 52°11°) | 43°6° | 0% | 2 mph3 km/h from W, gusts 5 mph8 km/h | 96% | 15% | 0 |
| Mon 6a | Clear | 41°5° (likely 41°5° to 52°11°) | 41°5° | 0% | 2 mph3 km/h from W, gusts 5 mph8 km/h | 100% | 15% | 0 |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Mostly sunny. High 63°17°, low 42°6°. Typical 66°19° / 49°9°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 41°5°Dry
Afternoon
noon–6 PM
Sunny, 63°17°Dry
Evening
6 PM–midnight
Clear, 53°12°Dry
Overnight
midnight–6 AM
Clear, 43°6°Dry
Official NWS forecast
Today: Sunny, with a high near 63. Northeast wind around 5 mph.
Tonight: Patchy fog after 5am. Clear, with a low around 42. Northeast wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 60°16°–63°17°
- Low, likely
- 39°4°–42°6°
- Typical high / low
- 66°19° / 49°9°
- Wind
- 7 mph10 km/h, gusts 13 mph21 km/h
- UV peak
- 4
Tomorrow, Oct 25. Fog. High 67°19°, low 40°4°. Typical 65°18° / 49°9°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 43°6°Dry
Afternoon
noon–6 PM
Sunny, 67°19°Dry
Evening
6 PM–midnight
Clear, 53°12°Dry
Overnight
midnight–6 AM
Clear, 43°6°Dry
Official NWS forecast
Day: Patchy fog before 7am. Sunny, with a high near 67. East wind around 2 mph.
Night: Clear, with a low around 40. Southwest wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 63°17°–67°19°
- Low, likely
- 38°3°–42°6°
- Typical high / low
- 65°18° / 49°9°
- Wind
- 5 mph8 km/h
- UV peak
- 4
Monday, Oct 26. Mostly sunny. High 71°22°, low 50°10°. Typical 65°18° / 49°9°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 45°7°Dry
Afternoon
noon–6 PM
Sunny, 70°21°Dry
Evening
6 PM–midnight
Clear, 58°15°Dry
Overnight
midnight–6 AM
Clear, 54°12°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 71. West wind around 5 mph.
Night: Mostly clear, with a low around 50.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 69°21°–71°22°
- Low, likely
- 41°5°–50°10°
- Typical high / low
- 65°18° / 49°9°
- Wind
- 8 mph12 km/h, gusts 20 mph32 km/h
- UV peak
- 4
Tuesday, Oct 27. Mostly sunny. High 67°19°, low 46°8°. Typical 65°18° / 48°9°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 53°12°Dry
Afternoon
noon–6 PM
Sunny, 67°19°Dry
Evening
6 PM–midnight
Clear, 58°14°Dry
Overnight
midnight–6 AM
Cloudy, 49°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 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 65°18°–69°21°
- Low, likely
- 46°8°–54°12°
- Typical high / low
- 65°18° / 48°9°
- Wind
- 8 mph13 km/h, gusts 24 mph39 km/h
- UV peak
- 4
Wednesday, Oct 28. Mostly cloudy. High 64°18°, low 49°9°. Typical 64°18° / 48°9°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 48°9°Dry
Afternoon
noon–6 PM
Cloudy, 62°17°Dry
Evening
6 PM–midnight
Cloudy, 57°14°Dry
Overnight
midnight–6 AM
Cloudy, 51°11°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 49.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 61°16°–64°18°
- Low, likely
- 44°7°–50°10°
- Typical high / low
- 64°18° / 48°9°
- Wind
- 8 mph12 km/h, gusts 15 mph25 km/h
- UV peak
- 4
Thursday, Oct 29. Partly sunny. High 71°22°, low 51°11°. Typical 64°18° / 48°9°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 50°10°Dry
Afternoon
noon–6 PM
Sunny, 67°20°Dry
Evening
6 PM–midnight
Clear, 58°15°Dry
Overnight
midnight–6 AM
Clear, 52°11°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 71.
Night: Mostly clear, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 66°19°–71°22°
- Low, likely
- 48°9°–51°11°
- Typical high / low
- 64°18° / 48°9°
- Wind
- 7 mph11 km/h, gusts 23 mph37 km/h
- UV peak
- 4
Friday, Oct 30. Mostly sunny. High 74°23°, low 51°11°. Typical 64°18° / 47°8°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 51°10°Dry
Afternoon
noon–6 PM
Sunny, 75°24°Dry
Evening
6 PM–midnight
Clear, 63°17°Dry
Overnight
midnight–6 AM
Clear, 51°11°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 74.
Night: Mostly clear, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 73°23°–76°24°
- Low, likely
- 47°8°–53°12°
- Typical high / low
- 64°18° / 47°8°
- Wind
- 11 mph17 km/h, gusts 22 mph36 km/h
- UV peak
- 4
Saturday, Oct 31. Cloudy. High 70°21°, low 50°10°. Typical 63°17° / 47°8°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 49°10°Dry
Afternoon
noon–6 PM
Mostly sunny, 69°21°Dry
Evening
6 PM–midnight
Cloudy, 61°16°Dry
Overnight
midnight–6 AM
Cloudy, 53°12°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°–75°24°
- Low, likely
- 47°8°–52°11°
- Typical high / low
- 63°17° / 47°8°
- Wind
- 12 mph19 km/h, gusts 22 mph36 km/h
- UV peak
- 3
Sunday, Nov 1. Cloudy. High 67°19°, low 52°11°. Typical 63°17° / 47°8°. Rain 0.01 in0.3 mm, 20% chance. Forecasts differ.
Morning
6 AM–noon
Partly sunny, 53°12°Dry
Afternoon
noon–6 PM
Cloudy, 66°19°Dry
Evening
6 PM–midnight
Partly cloudy, 60°16°20% chance
Overnight
midnight–6 AM
Cloudy, 57°14°20% chance · 0.01 in0.3 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
- 57°14°–72°22°
- Low, likely
- 48°9°–54°12°
- Typical high / low
- 63°17° / 47°8°
- Wind
- 8 mph13 km/h, gusts 21 mph33 km/h
- UV peak
- 3
Monday, Nov 2. Cloudy. High 69°21°, low 56°13°. Typical 62°17° / 46°8°. Rain 0.05 in1.3 mm, 30% chance. Forecasts differ.
Morning
6 AM–noon
Partly sunny, 59°15°Dry
Afternoon
noon–6 PM
Cloudy, 69°21°Dry
Evening
6 PM–midnight
Cloudy, 62°17°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°–76°24°
- Low, likely
- 53°12°–58°14°
- Typical high / low
- 62°17° / 46°8°
- Wind
- 9 mph14 km/h, gusts 17 mph28 km/h
- UV peak
- 2
The outlook
Today
Dry, high 63°, low 42°.
Tomorrow
Dry, high 67°, low 40°, warming up.
Monday
Dry, high 71°, low 50°, warming up.
Rest of week
Mostly dry, highs 64–74°.
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
East Branch Herbert Run at Arbutus
1.5 mi- Level
- 0.9 ft
- Flow
- under 1 cfs
Reading from Sat 6:40 AM · NWS gauge page
Patapsco River near Elkridge below Patapsco Valley State Park
2.6 mi- Level
- 7.7 ft
Reading from Sat 6:15 AM · NWS gauge page
Gwynns Falls at Washington Blvd in Baltimore
2.6 mi- Level
- 2.4 ft
- Flow
- 81 cfs
Reading from Sat 6:20 AM · NWS gauge page
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
About 58% less heating than a typical week.
This week 25Typical 60
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. About 4 hours are near freezing and damp, when outdoor units defrost more often.
Comfort
Dry air outside (dew point 37°F).
Open the windows?
Today, 12:00 PM–5:00 PM
Good stretch to open the windows.
Is this typical?
Maryland Science Center · official normals 1991–2020 · records 1950–2026
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° / 42°6°
- Record high
- 81°27° in 2001
- Record low
- 33°1° in 1969
Last 7 days vs normal
On average 1°0° colder than normal (daily mean temperature).
- −7°−4°SunOct 18
- −3°−2°MonOct 19
- +4°+2°TueOct 20
- +2°+1°WedOct 21
- +2°+1°ThuOct 22
- ±0°FriOct 23
- —SatOct 24
Lansdowne weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:25 AM, sunset 6:15 PM.
- Daylight
- 10 h 49 min
- Losing 2 min 21 s a day; shortest Dec 21, 1 h 25 min less
- Golden hour
- 5:38–6:32 PM
- Morning 7:09–8:02 AM
- Blue hour
- 6:32–6:42 PM
- Morning 6:58–7:09 AM; first light 6:58 AM
Stars tonight? Fair
Clear 6:42 PM–6:59 AM, but the moon is 99% lit and up.
Moon
Waxing gibbous
96% lit · growing
- Today
- sets 5:38 AM · rises 5:11 PM
- Full moon
- Oct 26
- New moon
- Nov 9
