Observed 9:15 AM EDT at KCGS

Forest Glen, MD weather

Sunny and 46°8°, jacket by 7 PM.

Mostly agree

Now 46°8°

Sunny

Wind: 3 mph5 km/h; From the north. Up to 5 mph8 km/h through 10 PM
Dew point: 42°5°; Comfortable
UV index: 2Low; Moderate 11 AM–5 PM · peak 4
Air quality: 39Good; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.56 inHg1035 hPa; Rising slowly · +0.04 inHg+1.3 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

9°5° cooler than this time yesterday (55°13° then, 46°8° now)

Good hours for

High 63°17° today at 3 PM
Below 50°10° tonight after 9 PM
Low 39°4° tomorrow at 6 AM
Above 50°10° tomorrow by 10 AM

This morningUp to 56°13° by 11 AM · Clear
This afternoonUp to 63°17° by 3 PM · Clear
TonightDown to 40°4° by 3 AM · Clear
Tomorrow morningUp to 58°14° by 11 AM · Clear
Tomorrow afternoonUp to 66°19° by 3 PM · Clear
Tomorrow nightDown to 41°5° by 5 AM · Clear
Monday morningUp to 46°8° by 9 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
Sat 10a	Sunny	51°11° (likely 49°9° to 51°11°)	51°11°	0%	3 mph5 km/h from NE, gusts 7 mph11 km/h	71%	0%	2
Sat 11a	Sunny	56°13° (likely 53°12° to 56°13°)	56°13°	0%	3 mph5 km/h from E, gusts 9 mph15 km/h	59%	2%	3
Sat 12p	Sunny	58°14° (likely 56°13° to 58°14°)	58°14°	0%	5 mph8 km/h from E, gusts 11 mph17 km/h	53%	9%	4
Sat 1p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	5 mph8 km/h from E, gusts 10 mph16 km/h	48%	11%	4
Sat 2p	Sunny	62°17° (likely 59°15° to 62°17°)	62°17°	0%	5 mph8 km/h from E, gusts 9 mph14 km/h	44%	14%	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	41%	14%	4
Sat 4p	Sunny	63°17° (likely 59°15° to 63°17°)	63°17°	0%	5 mph8 km/h from E, gusts 7 mph11 km/h	43%	13%	3
Sat 5p	Sunny	62°17° (likely 58°14° to 62°17°)	62°17°	0%	5 mph8 km/h from E, gusts 7 mph12 km/h	44%	13%	1
Sat 6p	Clear	58°14° (likely 55°13° to 58°14°)	58°14°	0%	3 mph5 km/h from E, gusts 8 mph13 km/h	51%	13%	0
Sat 7p	Clear	53°12° (likely 51°11° to 54°12°)	53°12°	0%	3 mph5 km/h from E, gusts 6 mph10 km/h	64%	7%	0
Sat 8p	Clear	50°10° (likely 49°9° to 51°11°)	50°10°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	71%	1%	0
Sat 9p	Clear	47°8° (likely 47°8° to 49°9°)	47°8°	0%	2 mph3 km/h from NE, gusts 7 mph11 km/h	83%	7%	0
Sat 10p	Clear	45°7° (likely 45°7° to 48°9°)	45°7°	0%	2 mph3 km/h from NE, gusts 6 mph10 km/h	89%	1%	0
Sat 11p	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	2 mph3 km/h from NE, gusts 6 mph9 km/h	89%	9%	0
Sun 12a	Clear	44°7° (likely 44°7° to 47°8°)	44°7°	0%	2 mph3 km/h from NE, gusts 5 mph8 km/h	93%	11%	0
Sun 1a	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	1 mph2 km/h from NE, gusts 5 mph7 km/h	96%	11%	0
Sun 2a	Clear	41°5° (likely 41°5° to 46°8°)	41°5°	0%	1 mph2 km/h from NE, gusts 4 mph6 km/h	100%	12%	0
Sun 3a	Clear	40°4° (likely 40°4° to 45°7°)	40°4°	0%	1 mph2 km/h from NE, gusts 4 mph7 km/h	100%	1%	0
Sun 4a	Clear	40°4° (likely 40°4° to 44°7°)	40°4°	0%	1 mph2 km/h from NE, gusts 5 mph7 km/h	100%	2%	0
Sun 5a	Clear	40°4° (likely 39°4° to 44°7°)	40°4°	0%	2 mph3 km/h from NE, gusts 6 mph9 km/h	100%	3%	0
Sun 6a	Clear	39°4° (likely 38°3° to 43°6°)	39°4°	0%	2 mph3 km/h from N, gusts 6 mph9 km/h	100%	8%	0
Sun 7a	Sunny	39°4° (likely 38°3° to 43°6°)	39°4°	0%	1 mph2 km/h from N, gusts 6 mph10 km/h	100%	11%	0
Sun 8a	Mostly sunny	39°4° (likely 38°3° to 43°6°)	39°4°	0%	2 mph3 km/h from N, gusts 7 mph11 km/h	100%	18%	0
Sun 9a	Sunny	46°8° (likely 44°7° to 49°9°)	46°8°	0%	2 mph3 km/h from N, gusts 6 mph10 km/h	89%	5%	1
Sun 10a	Mostly sunny	53°12° (likely 52°11° to 54°12°)	53°12°	0%	1 mph2 km/h from NE, gusts 6 mph10 km/h	71%	9%	2
Sun 11a	Sunny	58°14° (likely 56°13° to 58°14°)	58°14°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	59%	6%	3
Sun 12p	Sunny	60°16° (likely 59°15° to 61°16°)	60°16°	0%	1 mph2 km/h from E, gusts 6 mph9 km/h	55%	4%	4
Sun 1p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	1 mph2 km/h from E, gusts 5 mph8 km/h	46%	3%	4
Sun 2p	Sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	43%	4%	4
Sun 3p	Sunny	66°19° (likely 63°17° to 66°19°)	66°19°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	42%	5%	4
Sun 4p	Sunny	66°19° (likely 63°17° to 66°19°)	66°19°	0%	1 mph2 km/h from E, gusts 5 mph8 km/h	42%	4%	3
Sun 5p	Sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	1 mph2 km/h from SE, gusts 5 mph9 km/h	43%	4%	1
Sun 6p	Clear	61°16° (likely 58°14° to 61°16°)	61°16°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	51%	1%	0
Sun 7p	Clear	57°14° (likely 54°12° to 57°14°)	57°14°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	62%	0%	0
Sun 8p	Clear	52°11° (likely 51°11° to 54°12°)	52°11°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	77%	0%	0
Sun 9p	Clear	50°10° (likely 49°9° to 52°11°)	50°10°	0%	0 mph0 km/h, gusts 4 mph6 km/h	83%	0%	0
Sun 10p	Clear	48°9° (likely 48°9° to 51°11°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	0%	0
Sun 11p	Clear	45°7° (likely 45°7° to 50°10°)	45°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	0%	0
Mon 12a	Clear	44°7° (likely 44°7° to 49°9°)	44°7°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	0%	0
Mon 1a	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	1 mph2 km/h from W, gusts 4 mph6 km/h	100%	0%	0
Mon 2a	Clear	43°6° (likely 43°6° to 46°8°)	43°6°	0%	1 mph2 km/h from W, gusts 4 mph6 km/h	100%	0%	0
Mon 3a	Clear	43°6° (likely 42°6° to 45°7°)	43°6°	0%	1 mph2 km/h from W, gusts 5 mph7 km/h	100%	10%	0
Mon 4a	Clear	42°6° (likely 41°5° to 45°7°)	42°6°	0%	2 mph3 km/h from W, gusts 5 mph8 km/h	100%	12%	0
Mon 5a	Clear	41°5° (likely 41°5° to 44°7°)	41°5°	0%	2 mph3 km/h from W, gusts 6 mph10 km/h	100%	14%	0
Mon 6a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	2 mph3 km/h from W, gusts 7 mph11 km/h	100%	14%	0
Mon 7a	Sunny	39°4° (likely 39°4° to 45°7°)	37°3°	0%	3 mph5 km/h from W, gusts 6 mph10 km/h	100%	20%	0
Mon 8a	Sunny	41°5° (likely 37°3° to 46°8°)	39°4°	0%	3 mph5 km/h from W, gusts 7 mph12 km/h	100%	20%	0
Mon 9a	Sunny	46°8° (likely 41°5° to 51°11°)	45°7°	0%	3 mph5 km/h from W, gusts 7 mph11 km/h	89%	19%	1

Days ahead

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

Today, Oct 24. Mostly sunny. High 63°17°, low 39°4°. Typical 66°19° / 49°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. 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 between 1am and 5am. Clear, with a low around 39. Northeast wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–63°17°
Low, likely
38°3°–40°4°
Typical high / low
66°19° / 49°9°
Wind
7 mph11 km/h, gusts 13 mph21 km/h
UV peak
4
Tomorrow, Oct 25. Fog. High 66°19°, low 39°4°. Typical 66°19° / 49°9°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 41°5°
  Dry
Official NWS forecast
Day: Patchy fog between 7am and 8am. Sunny, with a high near 66. East wind around 2 mph.
Night: Clear, with a low around 39. West wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
63°17°–66°19°
Low, likely
38°3°–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 48°9°. Typical 66°19° / 48°9°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 51°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 69. West wind 2 to 6 mph.
Night: Clear, with a low around 48.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
67°19°–69°21°
Low, likely
37°3°–48°9°
Typical high / low
66°19° / 48°9°
Wind
8 mph13 km/h, gusts 15 mph24 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 66°19°, low 46°8°. Typical 65°18° / 48°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  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
64°18°–69°21°
Low, likely
46°8°–51°11°
Typical high / low
65°18° / 48°9°
Wind
8 mph14 km/h, gusts 20 mph32 km/h
UV peak
4
Wednesday, Oct 28. Mostly cloudy. High 63°17°, low 47°8°. Typical 65°18° / 48°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 63.
Night: Mostly cloudy, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–65°18°
Low, likely
42°6°–49°9°
Typical high / low
65°18° / 48°9°
Wind
7 mph12 km/h, gusts 16 mph26 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 69°21°, low 50°10°. Typical 65°18° / 47°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. 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
66°19°–69°21°
Low, likely
45°7°–50°10°
Typical high / low
65°18° / 47°8°
Wind
6 mph10 km/h, gusts 22 mph35 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 72°22°, low 50°10°. Typical 64°18° / 47°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 72.
Night: Mostly clear, with a low around 50.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
72°22°–75°24°
Low, likely
45°7°–50°10°
Typical high / low
64°18° / 47°8°
Wind
9 mph15 km/h, gusts 24 mph38 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 69°21°, low 48°9°. Typical 64°18° / 46°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°16°
  Dry
4. 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
60°16°–74°23°
Low, likely
43°6°–51°11°
Typical high / low
64°18° / 46°8°
Wind
11 mph17 km/h, gusts 26 mph41 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 67°19°, low 51°11°. Typical 64°18° / 46°8°. Rain 0.02 in0.5 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 51°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  20% chance
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  20% chance · 0.02 in0.4 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
56°13°–71°22°
Low, likely
46°8°–55°13°
Typical high / low
64°18° / 46°8°
Wind
8 mph12 km/h, gusts 21 mph33 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 68°20°, low 55°13°. Typical 63°17° / 46°8°. Rain 0.09 in2.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°16°
  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
56°13°–75°24°
Low, likely
47°8°–59°15°
Typical high / low
63°17° / 46°8°
Wind
8 mph13 km/h, gusts 16 mph26 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 63°, low 39°.
Tomorrow
Dry, high 66°, low 39°, warming up.
Monday
Dry, high 69°, low 48°, warming up.
Rest of week
Mostly dry, highs 63–72°.

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

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Potomac River near Washington DC (Little Falls)

6.5 mi

Below flood stage

Level: 3.1 ft
Flow: 3,510 cfs

Forecast peak 3.0 ft Sat 2 PM

Reading from Sat 8:50 AM · NWS gauge page

Sligo Creek near Takoma Park

3.1 mi

Below flood stage

Level: 0.6 ft
Flow: 1 cfs

Reading from Sat 9:15 AM · NWS gauge page

Northwest Branch at Kemp Mill

3.3 mi

Below flood stage

Level: 1.4 ft
Flow: 2 cfs

Reading from Sat 8:45 AM · NWS gauge page

Turkey Branch near Aspen Hill

3.9 mi

Below flood stage

Level: 4.3 ft
Flow: under 1 cfs

Reading from Sat 9:15 AM · NWS gauge page

For your home

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

Heating this week

About 51% less heating than a typical week.

This week 29Typical 59

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 24
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 12 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 42°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.

Last 7 days vs normal

On average 2°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
−1°FriOct 23
—SatOct 24

Forest Glen weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 50 min; Losing 2 min 21 s a day; shortest Dec 21, 1 h 24 min less
Golden hour: 5:40–6:33 PM; Morning 7:10–8:04 AM
Blue hour: 6:33–6:44 PM; Morning 6:59–7:10 AM; first light 6:59 AM

Stars tonight? Fair

Clear 6:44 PM–7 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:39 AM · rises 5:13 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Forest Glen. The highest point on the skyline is about 2,600 ft, 20 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Forest Glen, MD weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Potomac River near Washington DC (Little Falls)

Sligo Creek near Takoma Park

Northwest Branch at Kemp Mill

Turkey Branch near Aspen Hill

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon