Observed 4:35 PM EDT at KCGS

Upper Marlboro, MD weather

Partly cloudy and 63°17°, jacket by 7 PM.

Mostly agree

Now 63°17°

Partly sunny

Wind: 5 mph8 km/h; From the southeast. Light through 5 AM
Dew point: 39°4°; Comfortable
UV tomorrow: 4Moderate; Moderate 11 AM–5 PM · peak 4
Air quality: 36Good; Ozone · tomorrow moderate
Pressure: 30.52 inHg1034 hPa; Falling slowly · −0.02 inHg−0.5 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Below 50°10° tonight after 9 PM
Low 40°4° tomorrow at 7 AM
Above 50°10° tomorrow by 10 AM
High 65°18° tomorrow at 3 PM
Fog Monday 8–9 AM

TonightDown to 41°5° by 5 AM · Clear
Tomorrow morningUp to 57°14° by 11 AM · Partly cloudy
Tomorrow afternoonUp to 65°18° by 3 PM · Clear
Tomorrow nightDown to 41°5° by 4 AM · Clear
Monday morningUp to 59°15° by 11 AM · Partly cloudy
Monday afternoonUp to 69°21° by 3 PM · 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 5p	Sunny	62°17° (likely 59°15° to 62°17°)	62°17°	0%	5 mph8 km/h from E, gusts 9 mph14 km/h	50%	12%	1
Sat 6p	Clear	59°15° (likely 56°13° to 59°15°)	59°15°	0%	3 mph5 km/h from E, gusts 8 mph12 km/h	57%	1%	0
Sat 7p	Clear	55°13° (likely 52°11° to 55°13°)	55°13°	0%	3 mph5 km/h from E, gusts 5 mph8 km/h	66%	6%	0
Sat 8p	Clear	50°10° (likely 50°10° to 52°11°)	49°9°	0%	3 mph5 km/h from NE, gusts 5 mph9 km/h	77%	8%	0
Sat 9p	Clear	49°9° (likely 49°9° to 50°10°)	49°9°	0%	2 mph3 km/h from NE, gusts 5 mph9 km/h	80%	8%	0
Sat 10p	Clear	47°8° (likely 47°8° to 50°10°)	47°8°	0%	2 mph3 km/h from NE, gusts 4 mph7 km/h	86%	7%	0
Sat 11p	Clear	46°8° (likely 46°8° to 49°9°)	46°8°	0%	2 mph3 km/h from NE, gusts 4 mph6 km/h	89%	5%	0
Sun 12a	Clear	46°8° (likely 46°8° to 48°9°)	46°8°	0%	2 mph3 km/h from NE, gusts 3 mph6 km/h	89%	0%	0
Sun 1a	Clear	45°7° (likely 45°7° to 47°8°)	45°7°	0%	2 mph3 km/h from N, gusts 3 mph4 km/h	93%	0%	0
Sun 2a	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	2 mph3 km/h from N, gusts 3 mph4 km/h	96%	1%	0
Sun 3a	Clear	42°6° (likely 42°6° to 47°8°)	42°6°	0%	2 mph3 km/h from N, gusts 3 mph5 km/h	96%	2%	0
Sun 4a	Mostly clear	42°6° (likely 42°6° to 47°8°)	42°6°	0%	1 mph2 km/h from N, gusts 3 mph4 km/h	96%	27%	0
Sun 5a	Mostly clear	41°5° (likely 41°5° to 46°8°)	41°5°	0%	2 mph3 km/h from N, gusts 4 mph6 km/h	100%	11%	0
Sun 6a	Clear	41°5° (likely 41°5° to 46°8°)	41°5°	0%	2 mph3 km/h from N, gusts 4 mph7 km/h	96%	40%	0
Sun 7a	Sunny	40°4° (likely 40°4° to 46°8°)	40°4°	0%	2 mph3 km/h from N, gusts 5 mph7 km/h	96%	34%	0
Sun 8a	Sunny	41°5° (likely 41°5° to 45°7°)	41°5°	0%	2 mph3 km/h from N, gusts 5 mph7 km/h	100%	16%	0
Sun 9a	Sunny	45°7° (likely 45°7° to 49°9°)	45°7°	0%	2 mph3 km/h from N, gusts 3 mph5 km/h	96%	40%	1
Sun 10a	Sunny	53°12° (likely 53°12° to 56°13°)	53°12°	0%	2 mph3 km/h from NE, gusts 7 mph11 km/h	77%	22%	2
Sun 11a	Sunny	57°14° (likely 57°14° to 61°16°)	57°14°	0%	3 mph5 km/h from E, gusts 6 mph9 km/h	69%	3%	3
Sun 12p	Sunny	60°16° (likely 60°16° to 64°18°)	60°16°	0%	3 mph5 km/h from E, gusts 5 mph8 km/h	60%	4%	4
Sun 1p	Sunny	63°17° (likely 63°17° to 65°18°)	63°17°	0%	3 mph5 km/h from E, gusts 4 mph7 km/h	52%	4%	4
Sun 2p	Sunny	64°18° (likely 64°18° to 66°19°)	64°18°	0%	3 mph5 km/h from E, gusts 4 mph7 km/h	48%	4%	4
Sun 3p	Sunny	65°18° (likely 64°18° to 67°19°)	65°18°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	46%	4%	4
Sun 4p	Sunny	65°18° (likely 64°18° to 67°19°)	65°18°	0%	2 mph3 km/h from E, gusts 5 mph9 km/h	48%	2%	3
Sun 5p	Sunny	63°17° (likely 62°17° to 66°19°)	63°17°	0%	2 mph3 km/h from E, gusts 5 mph9 km/h	52%	0%	1
Sun 6p	Clear	61°16° (likely 58°14° to 61°16°)	61°16°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	56%	0%	0
Sun 7p	Clear	56°13° (likely 54°12° to 56°13°)	56°13°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	64%	0%	0
Sun 8p	Clear	50°10° (likely 50°10° to 54°12°)	50°10°	0%	1 mph2 km/h from E, gusts 5 mph8 km/h	77%	0%	0
Sun 9p	Clear	48°9° (likely 48°9° to 52°11°)	48°9°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	83%	0%	0
Sun 10p	Clear	47°8° (likely 47°8° to 51°11°)	47°8°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	86%	0%	0
Sun 11p	Clear	45°7° (likely 45°7° to 49°9°)	45°7°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	93%	0%	0
Mon 12a	Clear	44°7° (likely 44°7° to 49°9°)	44°7°	0%	1 mph2 km/h from S, gusts 3 mph5 km/h	93%	0%	0
Mon 1a	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	1 mph2 km/h from S, gusts 3 mph5 km/h	93%	1%	0
Mon 2a	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	1 mph2 km/h from W, gusts 4 mph6 km/h	93%	0%	0
Mon 3a	Clear	42°6° (likely 42°6° to 45°7°)	42°6°	0%	1 mph2 km/h from W, gusts 4 mph7 km/h	96%	1%	0
Mon 4a	Clear	41°5° (likely 41°5° to 44°7°)	41°5°	0%	2 mph3 km/h from W, gusts 5 mph8 km/h	100%	4%	0
Mon 5a	Clear	41°5° (likely 41°5° to 44°7°)	41°5°	0%	2 mph3 km/h from W, gusts 5 mph9 km/h	100%	7%	0
Mon 6a	Clear	41°5° (likely 41°5° to 43°6°)	41°5°	0%	2 mph3 km/h from W, gusts 5 mph9 km/h	100%	15%	0
Mon 7a	Sunny	40°4° (likely 40°4° to 43°6°)	40°4°	0%	2 mph3 km/h from W, gusts 6 mph10 km/h	100%	20%	0
Mon 8a	Fog	41°5° (likely 40°4° to 44°7°)	41°5°	0%	2 mph3 km/h from W, gusts 6 mph9 km/h	96%	60%	0
Mon 9a	Mostly sunny	46°8° (likely 45°7° to 48°9°)	45°7°	0%	3 mph5 km/h from W, gusts 7 mph11 km/h	89%	40%	1
Mon 10a	Sunny	53°12° (likely 53°12° to 56°13°)	53°12°	0%	5 mph8 km/h from W, gusts 9 mph15 km/h	77%	14%	2
Mon 11a	Sunny	59°15° (likely 58°14° to 62°17°)	59°15°	0%	5 mph8 km/h from W, gusts 11 mph17 km/h	67%	5%	3
Mon 12p	Sunny	63°17° (likely 63°17° to 64°18°)	63°17°	0%	5 mph8 km/h from W, gusts 11 mph17 km/h	56%	3%	4
Mon 1p	Sunny	66°19° (likely 65°18° to 67°19°)	66°19°	0%	5 mph8 km/h from W, gusts 10 mph17 km/h	50%	0%	4
Mon 2p	Sunny	68°20° (likely 67°19° to 68°20°)	68°20°	0%	6 mph10 km/h from W, gusts 10 mph16 km/h	47%	0%	4
Mon 3p	Sunny	69°21° (likely 68°20° to 70°21°)	69°21°	0%	6 mph10 km/h from NW, gusts 11 mph18 km/h	45%	0%	4
Mon 4p	Sunny	69°21° (likely 67°19° to 70°21°)	69°21°	0%	5 mph8 km/h from W, gusts 12 mph19 km/h	45%	0%	3

Days ahead

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

Today, Oct 24. Cloudy. High 63°17°, low 38°3°. Typical 66°19° / 49°9°. Dry. Mostly agree.
1. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 41°5°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 63. East wind around 5 mph.
Tonight: Mostly clear, with a low around 38. Northeast wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–64°18°
Low, likely
38°3°–39°4°
Typical high / low
66°19° / 49°9°
Wind
7 mph11 km/h, gusts 17 mph27 km/h
UV peak
4
Tomorrow, Oct 25. Mostly sunny. High 65°18°, low 39°4°. Typical 66°19° / 49°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 41°5°
  Dry
Official NWS forecast
Day: Sunny, with a high near 65. Northeast wind around 3 mph.
Night: Clear, with a low around 39. South wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–67°19°
Low, likely
39°4°–45°7°
Typical high / low
66°19° / 49°9°
Wind
5 mph8 km/h, gusts 11 mph18 km/h
UV peak
4
Monday, Oct 26. Sunny. High 70°21°, low 49°9°. Typical 66°19° / 48°9°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Official NWS forecast
Day: Sunny, with a high near 70. West wind 2 to 6 mph.
Night: Clear, with a low around 49.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
68°20°–70°21°
Low, likely
41°5°–49°9°
Typical high / low
66°19° / 48°9°
Wind
7 mph11 km/h, gusts 15 mph24 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 68°20°, low 47°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, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 68.
Night: Mostly clear, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–68°20°
Low, likely
47°8°–51°11°
Typical high / low
65°18° / 48°9°
Wind
9 mph14 km/h, gusts 18 mph29 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 66°19°, low 48°9°. Typical 65°18° / 48°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 48°9°
  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: Mostly sunny, with a high near 66.
Night: Mostly cloudy, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–66°19°
Low, likely
45°7°–49°9°
Typical high / low
65°18° / 48°9°
Wind
7 mph11 km/h, gusts 18 mph28 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 71°22°, low 49°9°. Typical 65°18° / 47°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  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 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–71°22°
Low, likely
47°8°–49°9°
Typical high / low
65°18° / 47°8°
Wind
7 mph12 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. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°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.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
74°23°–75°24°
Low, likely
48°9°–51°11°
Typical high / low
64°18° / 47°8°
Wind
7 mph11 km/h, gusts 24 mph38 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 69°21°, low 50°10°. Typical 64°18° / 46°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  Dry
4. 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
64°18°–73°23°
Low, likely
46°8°–52°11°
Typical high / low
64°18° / 46°8°
Wind
8 mph13 km/h, gusts 26 mph42 km/h
UV peak
4
Sunday, Nov 1. Drizzle. High 70°21°, low 53°12°. Typical 64°18° / 46°8°. Rain 0.02 in0.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°21°
  30% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Drizzle, 64°18°
  30% chance · 0.05 in1.1 mm
4. Overnight
  midnight–6 AM
  Drizzle, 64°18°
  30% chance · 0.07 in1.7 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
64°18°–76°24°
Low, likely
51°11°–55°13°
Typical high / low
64°18° / 46°8°
Wind
9 mph15 km/h, gusts 20 mph32 km/h
UV peak
2
Monday, Nov 2. Drizzle. High 73°23°, low 61°16°. Typical 63°17° / 46°8°. Rain 0.14 in3.6 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 65°18°
  30% chance · 0.03 in0.8 mm
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 69°20°
  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
67°19°–80°27°
Low, likely
57°14°–70°21°
Typical high / low
63°17° / 46°8°
Wind
15 mph24 km/h, gusts 38 mph61 km/h

10 days15 days30 days

The outlook

Today
Dry, high 63°, low 38°.
Tomorrow
Dry, high 65°, low 39°.
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

Full-screen radar

Rivers

NOAA river gauges within 25 mi

School House Pond at Upper Marlboro

0.2 mi

Level: 2.9 ft

Reading from Sat 4:45 PM · NWS gauge page

Western Branch at Upper Marlboro

0.3 mi

Below flood stage

Level: 1.7 ft
Flow: 17 cfs

Reading from Sat 4:30 PM · NWS gauge page

Western Branch at Upper Marlboro / Marlboro Country Club

0.7 mi

Below flood stage

Level: 0.9 ft

Reading from Sat 4:30 PM · NWS gauge page

Back Branch near Upper Marlboro / Brown Landfill

2.3 mi

Level: 0.3 ft

Reading from Sat 4:15 PM · NWS gauge page

For your home

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

Heating this week

About 52% less heating than a typical week.

This week 28Typical 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 39°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 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

Upper Marlboro weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 51 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 24 min less
Golden hour: 5:39–6:32 PM; Morning 7:08–8:02 AM
Blue hour: 6:32–6:43 PM; Morning 6:58–7:08 AM; first light 6:58 AM

Stars tonight? Fair

Clear 6:43 PM–4 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:38 AM · rises 5:12 PM
Full moon: Oct 26
New moon: Nov 9

Looking east from Upper Marlboro. The highest point on the skyline is about 1,100 ft, 29 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.