Observed 12:56 PM EDT at KGAI

North Potomac, MD weather

Sunny and 64°18°, jacket by 8 PM.

Forecasts agree

Now 64°18°

Sunny

Wind: 5 mph8 km/h; Light through 1 AM
Dew point: 45°7°; Comfortable
UV index: 4Moderate; Moderate until 5 PM
Air quality: 32Good; Ozone · tomorrow moderate
Pressure: 30.58 inHg1036 hPa; Falling · −0.06 inHg−2.1 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (62°17° then, 64°18° now)

Good hours for

High 65°18° today at 3 PM
Below 50°10° tonight after 9 PM
Low 37°3° tonight at 4 AM
Fog tomorrow 7–8 AM
Above 50°10° tomorrow by 10 AM

This afternoonUp to 65°18° by 3 PM · Clear
TonightDown to 37°3° by 4 AM · Clear
Tomorrow morningUp to 58°14° by 11 AM · Clear
Tomorrow afternoonUp to 68°20° by 2 PM · Clear
Tomorrow nightDown to 48°9° by 1 AM · Clear
Tuesday morningUp to 61°16° by 11 AM · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sun 1p	Sunny	61°16° (likely 61°16° to 62°17°)	61°16°	0%	2 mph3 km/h from S, gusts 5 mph8 km/h	51%	2%	4
Sun 2p	Sunny	63°17° (likely 62°17° to 64°18°)	63°17°	0%	2 mph3 km/h from S, gusts 4 mph7 km/h	48%	3%	4
Sun 3p	Sunny	65°18° (likely 63°17° to 65°18°)	65°18°	0%	3 mph5 km/h from SW, gusts 5 mph8 km/h	45%	1%	4
Sun 4p	Sunny	65°18° (likely 63°17° to 65°18°)	65°18°	0%	3 mph5 km/h from SW, gusts 5 mph8 km/h	45%	1%	3
Sun 5p	Sunny	64°18° (likely 62°17° to 64°18°)	64°18°	0%	3 mph5 km/h from SW, gusts 5 mph8 km/h	46%	2%	1
Sun 6p	Clear	61°16° (likely 58°14° to 61°16°)	61°16°	0%	2 mph3 km/h from SW, gusts 5 mph7 km/h	51%	0%	0
Sun 7p	Clear	56°13° (likely 55°13° to 56°13°)	56°13°	0%	1 mph2 km/h from S, gusts 3 mph5 km/h	64%	0%	0
Sun 8p	Clear	50°10° (likely 50°10° to 54°12°)	50°10°	0%	1 mph2 km/h from SE, gusts 2 mph4 km/h	86%	0%	0
Sun 9p	Clear	46°8° (likely 46°8° to 52°11°)	46°8°	0%	0 mph0 km/h, gusts 5 mph7 km/h	100%	0%	0
Sun 10p	Clear	44°7° (likely 44°7° to 51°11°)	44°7°	0%	0 mph0 km/h, gusts 6 mph9 km/h	100%	0%	0
Sun 11p	Clear	42°6° (likely 42°6° to 48°9°)	42°6°	0%	0 mph0 km/h, gusts 6 mph9 km/h	100%	0%	0
Mon 12a	Clear	41°5° (likely 41°5° to 47°8°)	41°5°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	0%	0
Mon 1a	Clear	39°4° (likely 39°4° to 46°8°)	39°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	0%	0
Mon 2a	Clear	38°3° (likely 38°3° to 46°8°)	38°3°	0%	1 mph2 km/h from W, gusts 4 mph6 km/h	100%	0%	0
Mon 3a	Clear	38°3° (likely 38°3° to 45°7°)	38°3°	0%	1 mph2 km/h from W, gusts 4 mph6 km/h	100%	0%	0
Mon 4a	Clear	37°3° (likely 37°3° to 44°7°)	37°3°	0%	1 mph2 km/h from NW, gusts 4 mph7 km/h	100%	0%	0
Mon 5a	Clear	37°3° (likely 37°3° to 43°6°)	37°3°	0%	1 mph2 km/h from NW, gusts 4 mph7 km/h	100%	0%	0
Mon 6a	Clear	37°3° (likely 37°3° to 42°6°)	37°3°	0%	1 mph2 km/h from NW, gusts 5 mph8 km/h	100%	17%	0
Mon 7a	Fog	37°3° (likely 37°3° to 42°6°)	37°3°	0%	1 mph2 km/h from NW, gusts 6 mph9 km/h	100%	26%	0
Mon 8a	Sunny	37°3° (likely 37°3° to 42°6°)	37°3°	0%	2 mph3 km/h from NW, gusts 5 mph8 km/h	100%	35%	0
Mon 9a	Sunny	43°6° (likely 43°6° to 46°8°)	43°6°	0%	2 mph3 km/h from NW, gusts 6 mph9 km/h	100%	30%	1
Mon 10a	Sunny	53°12° (likely 52°11° to 53°12°)	53°12°	0%	3 mph5 km/h from W, gusts 11 mph18 km/h	80%	8%	2
Mon 11a	Sunny	58°14° (likely 58°14° to 59°15°)	58°14°	0%	3 mph5 km/h from W, gusts 10 mph15 km/h	67%	0%	3
Mon 12p	Sunny	62°17° (likely 62°17° to 63°17°)	62°17°	0%	5 mph8 km/h from NW, gusts 11 mph17 km/h	58%	0%	4
Mon 1p	Sunny	65°18° (likely 65°18° to 66°19°)	65°18°	0%	6 mph10 km/h from NW, gusts 11 mph17 km/h	52%	3%	4
Mon 2p	Sunny	68°20° (likely 67°19° to 68°20°)	68°20°	0%	6 mph10 km/h from NW, gusts 12 mph19 km/h	47%	6%	4
Mon 3p	Sunny	68°20° (likely 68°20° to 69°21°)	68°20°	0%	6 mph10 km/h from NW, gusts 11 mph18 km/h	45%	0%	4
Mon 4p	Sunny	68°20° (likely 68°20° to 69°21°)	68°20°	0%	5 mph8 km/h from NW, gusts 12 mph19 km/h	45%	0%	3
Mon 5p	Sunny	68°20° (likely 66°19° to 69°21°)	68°20°	0%	5 mph8 km/h from NW, gusts 11 mph17 km/h	45%	0%	1
Mon 6p	Clear	64°18° (likely 62°17° to 64°18°)	64°18°	0%	3 mph5 km/h from NW, gusts 6 mph10 km/h	54%	0%	0
Mon 7p	Clear	59°15° (likely 58°14° to 60°16°)	59°15°	0%	2 mph3 km/h from NW, gusts 4 mph7 km/h	64%	0%	0
Mon 8p	Clear	55°13° (likely 55°13° to 58°14°)	55°13°	0%	2 mph3 km/h from W, gusts 3 mph6 km/h	77%	0%	0
Mon 9p	Clear	53°12° (likely 53°12° to 57°14°)	53°12°	0%	1 mph2 km/h from NW, gusts 4 mph7 km/h	86%	2%	0
Mon 10p	Clear	51°11° (likely 51°11° to 54°12°)	51°11°	0%	1 mph2 km/h from NW, gusts 5 mph8 km/h	93%	6%	0
Mon 11p	Clear	50°10° (likely 50°10° to 53°12°)	50°10°	0%	2 mph3 km/h from NW, gusts 6 mph9 km/h	93%	5%	0
Tue 12a	Mostly clear	49°9° (likely 49°9° to 52°11°)	49°9°	0%	2 mph3 km/h from NW, gusts 6 mph10 km/h	96%	9%	0
Tue 1a	Mostly clear	48°9° (likely 48°9° to 52°11°)	47°8°	0%	3 mph5 km/h from NW, gusts 7 mph12 km/h	96%	9%	0
Tue 2a	Mostly clear	48°9° (likely 47°8° to 52°11°)	47°8°	0%	3 mph5 km/h from NW, gusts 8 mph12 km/h	96%	27%	0
Tue 3a	Mostly clear	48°9° (likely 47°8° to 51°11°)	47°8°	0%	3 mph5 km/h from NW, gusts 9 mph14 km/h	96%	18%	0
Tue 4a	Mostly clear	48°9° (likely 47°8° to 50°10°)	47°8°	0%	3 mph5 km/h from N, gusts 9 mph15 km/h	96%	49%	0
Tue 5a	Mostly clear	48°9° (likely 47°8° to 50°10°)	47°8°	0%	3 mph5 km/h from N, gusts 10 mph16 km/h	96%	11%	0
Tue 6a	Clear	47°8° (likely 46°8° to 49°9°)	45°7°	0%	5 mph8 km/h from N, gusts 9 mph15 km/h	100%	20%	0
Tue 7a	Clear	46°8° (likely 45°7° to 48°9°)	44°7°	0%	5 mph8 km/h from N, gusts 9 mph15 km/h	100%	17%	0
Tue 8a	Sunny	47°8° (likely 45°7° to 49°9°)	44°7°	0%	6 mph10 km/h from N, gusts 10 mph15 km/h	100%	11%	0
Tue 9a	Mostly sunny	51°11° (likely 49°9° to 54°12°)	51°11°	0%	6 mph10 km/h from N, gusts 10 mph16 km/h	86%	11%	1
Tue 10a	Mostly sunny	56°13° (likely 56°13° to 60°16°)	56°13°	0%	7 mph11 km/h from N, gusts 11 mph18 km/h	74%	5%	2
Tue 11a	Sunny	61°16° (likely 59°15° to 63°17°)	61°16°	0%	7 mph11 km/h from NE, gusts 12 mph19 km/h	62%	7%	3
Tue 12p	Mostly sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	7 mph11 km/h from NE, gusts 10 mph17 km/h	54%	7%	4

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 25. Mostly sunny. High 65°18°, low 37°3°. Typical 63°17° / 42°6°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
2. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 37°3°
  Dry
Official NWS forecast
Today: Sunny, with a high near 65. South wind around 3 mph.
Tonight: Patchy fog between 9pm and 4am, then patchy frost and patchy fog. Clear, with a low around 37. West wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
62°17°–65°18°
Low, likely
37°3°–40°4°
Typical high / low
63°17° / 42°6°
Wind
6 mph10 km/h
UV peak
4
Tomorrow, Oct 26. Fog. High 68°20°, low 46°8°. Typical 62°17° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 48°9°
  Dry
Official NWS forecast
Day: Patchy frost and patchy fog before 9am. Sunny, with a high near 68. Northwest wind 1 to 6 mph.
Night: Mostly clear, with a low around 46. Northwest wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
68°20°–69°21°
Low, likely
39°4°–46°8°
Typical high / low
62°17° / 41°5°
Wind
7 mph11 km/h, gusts 16 mph26 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 68°20°, low 44°7°. Typical 62°17° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Official NWS forecast
Day: Sunny, with a high near 68. North wind around 7 mph.
Night: Partly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
44°7°–48°9°
Typical high / low
62°17° / 41°5°
Wind
7 mph11 km/h, gusts 17 mph28 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 65°18°, low 47°8°. Typical 62°17° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 49°9°
  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 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–65°18°
Low, likely
44°7°–48°9°
Typical high / low
62°17° / 40°4°
Wind
6 mph9 km/h, gusts 15 mph23 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 71°22°, low 48°9°. Typical 61°16° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  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 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–71°22°
Low, likely
47°8°–49°9°
Typical high / low
61°16° / 40°4°
Wind
7 mph10 km/h, gusts 22 mph36 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 74°23°, low 50°10°. Typical 61°16° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Clear, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 74.
Night: Partly cloudy, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–76°24°
Low, likely
45°7°–50°10°
Typical high / low
61°16° / 40°4°
Wind
6 mph9 km/h, gusts 13 mph21 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 72°22°, low 53°12°. Typical 61°16° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 56°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 72.
Night: Mostly cloudy, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–73°23°
Low, likely
48°9°–54°12°
Typical high / low
61°16° / 39°4°
Wind
7 mph11 km/h, gusts 19 mph31 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 70°21°, low 54°12°. Typical 60°16° / 39°4°. Rain 0.03 in0.8 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  30% chance · 0.02 in0.4 mm
3. Evening
  6 PM–midnight
  Cloudy, 63°17°
  30% chance · 0.12 in3.1 mm
4. Overnight
  midnight–6 AM
  Cloudy, 63°17°
  30% chance · 0.09 in2.2 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–73°23°
Low, likely
50°10°–57°14°
Typical high / low
60°16° / 39°4°
Wind
9 mph14 km/h, gusts 20 mph32 km/h
UV peak
4
Monday, Nov 2. Cloudy. High 68°20°, low 58°14°. Typical 60°16° / 39°4°. Rain 0.32 in8.1 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 64°18°
  30% chance · 0.07 in1.9 mm
2. Afternoon
  noon–6 PM
  Drizzle, 67°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 54°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
63°17°–72°22°
Low, likely
53°12°–68°20°
Typical high / low
60°16° / 39°4°
Wind
15 mph24 km/h, gusts 34 mph54 km/h
UV peak
2
Tuesday, Nov 3. Cloudy. High 66°19°, low 52°11°. Typical 60°16° / 38°3°. Rain 0.02 in0.5 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  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
52°11°–73°23°
Low, likely
43°6°–58°14°
Typical high / low
60°16° / 38°3°
Wind
11 mph18 km/h, gusts 27 mph43 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 65°, low 37°.
Tomorrow
Dry, high 68°, low 46°, warming up.
Tuesday
Dry, high 68°, low 44°.
Rest of week
Mostly dry, highs 65–74°.

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

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Seneca Creek at Dawsonville

5.6 mi

Below flood stage

Level: 1.9 ft
Flow: 40 cfs

Forecast peak 1.9 ft Sun 2 PM

Reading from Sun 11:50 AM · NWS gauge page

Little Seneca Creek Tributary Near Germantown, MD

7.3 mi

Below flood stage

Level: 0.5 ft
Flow: 1 cfs

Reading from Sun 11:55 AM · NWS gauge page

Cabin Branch Near Boyds, MD - 01644380

8.1 mi

Level: 4.2 ft

Reading from Sun 12 PM · NWS gauge page

Difficult Run near Great Falls

8.4 mi

Below flood stage

Level: 2.7 ft
Flow: 14 cfs

Reading from Sun 12:15 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 73% less heating than a typical week.

This week 26Typical 98

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 16
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 10 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 45°F).

Open the windows?

Today, 2:00 PM–6:00 PM

Good stretch to open the windows.

Is this typical?

VIENNA · official normals 1991–2020 · records 1948–2026

Oct 25, today vs a typical year

Today’s expected high is 2°1° warmer than typical.

Last 7 days vs normal

On average 4°2° colder than normal (daily mean temperature).

−7°−4°MonOct 19
−5°−3°TueOct 20
±0°WedOct 21
−3°−2°ThuOct 22
−1°FriOct 23
−4°−2°SatOct 24
−5°−3°SunOct 25

North Potomac weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 47 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 22 min less
Golden hour: 5:39–6:33 PM; Morning 7:12–8:06 AM
Blue hour: 6:33–6:43 PM; Morning 7:01–7:12 AM; first light 7:01 AM

Stars tonight? Fair

Clear 6:43 PM–7 AM, but the moon is 100% lit and up.

Moon

Full moon

100% lit · growing

Today: sets 6:51 AM · rises 5:42 PM
Full moon: Oct 26
New moon: Nov 9

Looking northwest from North Potomac. The highest point on the skyline is about 2,200 ft, 31 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

North Potomac, MD weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Tuesday

Rest of week

What changed since yesterday

Radar

Rivers

Seneca Creek at Dawsonville

Little Seneca Creek Tributary Near Germantown, MD

Cabin Branch Near Boyds, MD - 01644380

Difficult Run near Great Falls

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 25, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon