Frost Advisory
Starts in 4 h 29 min
When
From 10 PM this evening to 9 AM EDT Sunday.
Where
In Delaware, Kent and New Castle Counties. In Maryland, Caroline, Kent MD, and Queen Annes Counties. In Pennsylvania, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, and Philadelphia Counties.
Issued for this forecast zone · National Weather Service Mount Holly NJ
What, impacts and precautionsHide details
What
Temperatures as low as 33 degrees will result in frost formation.
Impacts
Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Precautionary actions
Take steps now to protect tender plants from the cold.
Areas: New Castle; Kent; Kent; Queen Anne's; Caroline; Delaware; Philadelphia; Eastern Chester; Eastern Montgomery; Lower Bucks
See it on weather.gov (opens in a new tab)

Observed 4:55 PM EDT at KILG

Crumpton, MD weather

Sunny and 63°17°, jacket by 7 PM.

Forecasts agree

Now 63°17°

Sunny

Wind: 5 mph7 km/h; From the south. Light through 5 AM
Dew point: 41°5°; Comfortable
UV tomorrow: 4Moderate; Moderate 11 AM–5 PM · peak 4
Air quality: 35Good; Ozone · tomorrow moderate
Pressure: 30.53 inHg1034 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Drops 12°7° until 8 PM (62°17° → 50°10°)
Below 50°10° tonight after 8 PM
Above 50°10° tomorrow by 10 AM
High 65°18° tomorrow at 2 PM
Drops 13°7° tomorrow 5–8 PM (65°18° → 52°11°)

TonightDown to 35°2° by 4 AM · Clear
Tomorrow morningUp to 58°14° by 11 AM · Clear
Tomorrow afternoonUp to 65°18° by 2 PM · Clear
Tomorrow nightDown to 38°3° by midnight · 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 6 mph10 km/h	46%	2%	0
Sat 6p	Clear	58°14° (likely 55°13° to 58°14°)	58°14°	0%	0 mph0 km/h, gusts 7 mph11 km/h	53%	1%	0
Sat 7p	Clear	50°10° (likely 50°10° to 53°12°)	50°10°	0%	0 mph0 km/h, gusts 7 mph12 km/h	71%	0%	0
Sat 8p	Clear	43°6° (likely 43°6° to 51°11°)	43°6°	0%	0 mph0 km/h, gusts 5 mph9 km/h	89%	0%	0
Sat 9p	Clear	42°6° (likely 42°6° to 49°9°)	42°6°	0%	0 mph0 km/h, gusts 5 mph8 km/h	93%	0%	0
Sat 10p	Clear	40°4° (likely 40°4° to 47°8°)	40°4°	0%	0 mph0 km/h, gusts 5 mph7 km/h	100%	0%	0
Sat 11p	Clear	39°4° (likely 39°4° to 46°8°)	39°4°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	0%	0
Sun 12a	Clear	38°3° (likely 38°3° to 46°8°)	38°3°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	1%	0
Sun 1a	Clear	37°3° (likely 37°3° to 45°7°)	37°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	1%	0
Sun 2a	Clear	36°2° (likely 36°2° to 43°6°)	36°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	2%	0
Sun 3a	Clear	36°2° (likely 36°2° to 42°6°)	36°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	2%	0
Sun 4a	Clear	35°2° (likely 35°2° to 41°5°)	35°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	7%	0
Sun 5a	Clear	35°2° (likely 35°2° to 41°5°)	35°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	8%	0
Sun 6a	Clear	34°1° (likely 34°1° to 41°5°)	34°1°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	3%	0
Sun 7a	Sunny	34°1° (likely 34°1° to 41°5°)	34°1°	0%	0 mph0 km/h, gusts 6 mph9 km/h	100%	19%	0
Sun 8a	Sunny	36°2° (likely 36°2° to 42°6°)	36°2°	0%	0 mph0 km/h, gusts 6 mph10 km/h	100%	17%	0
Sun 9a	Sunny	45°7° (likely 43°6° to 46°8°)	45°7°	0%	0 mph0 km/h, gusts 6 mph9 km/h	82%	40%	1
Sun 10a	Sunny	53°12° (likely 49°9° to 54°12°)	53°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	66%	30%	2
Sun 11a	Sunny	58°14° (likely 57°14° to 59°15°)	58°14°	0%	0 mph0 km/h, gusts 4 mph7 km/h	57%	1%	3
Sun 12p	Sunny	61°16° (likely 61°16° to 62°17°)	61°16°	0%	5 mph8 km/h from NE, gusts 5 mph7 km/h	50%	1%	4
Sun 1p	Sunny	63°17° (likely 62°17° to 64°18°)	63°17°	0%	0 mph0 km/h, gusts 5 mph7 km/h	46%	2%	4
Sun 2p	Sunny	65°18° (likely 63°17° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 5 mph8 km/h	43%	2%	4
Sun 3p	Sunny	65°18° (likely 64°18° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 5 mph8 km/h	43%	3%	4
Sun 4p	Sunny	65°18° (likely 64°18° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 5 mph7 km/h	43%	0%	3
Sun 5p	Sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 4 mph6 km/h	45%	0%	1
Sun 6p	Clear	60°16° (likely 58°14° to 60°16°)	60°16°	0%	0 mph0 km/h, gusts 3 mph4 km/h	53%	0%	0
Sun 7p	Clear	52°11° (likely 52°11° to 56°13°)	52°11°	0%	0 mph0 km/h, gusts 4 mph6 km/h	69%	0%	0
Sun 8p	Clear	46°8° (likely 46°8° to 53°12°)	46°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	83%	0%	0
Sun 9p	Clear	42°6° (likely 42°6° to 51°11°)	42°6°	0%	0 mph0 km/h, gusts 4 mph6 km/h	96%	0%	0
Sun 10p	Clear	41°5° (likely 41°5° to 48°9°)	41°5°	0%	0 mph0 km/h, gusts 7 mph11 km/h	100%	1%	0
Sun 11p	Clear	39°4° (likely 39°4° to 47°8°)	39°4°	0%	0 mph0 km/h, gusts 8 mph12 km/h	100%	2%	0
Mon 12a	Clear	38°3° (likely 38°3° to 47°8°)	38°3°	0%	0 mph0 km/h, gusts 7 mph12 km/h	100%	2%	0
Mon 1a	Clear	38°3° (likely 38°3° to 46°8°)	38°3°	0%	0 mph0 km/h, gusts 6 mph10 km/h	100%	2%	0
Mon 2a	Clear	38°3° (likely 38°3° to 45°7°)	38°3°	0%	0 mph0 km/h, gusts 5 mph9 km/h	100%	2%	0
Mon 3a	Clear	38°3° (likely 38°3° to 44°7°)	38°3°	0%	0 mph0 km/h, gusts 6 mph9 km/h	100%	5%	0
Mon 4a	Clear	38°3° (likely 38°3° to 45°7°)	38°3°	0%	0 mph0 km/h, gusts 5 mph9 km/h	100%	5%	0
Mon 5a	Clear	38°3° (likely 38°3° to 45°7°)	38°3°	0%	0 mph0 km/h, gusts 7 mph11 km/h	100%	9%	0
Mon 6a	Clear	38°3° (likely 38°3° to 45°7°)	38°3°	0%	0 mph0 km/h, gusts 6 mph10 km/h	100%	13%	0
Mon 7a	Sunny	38°3° (likely 38°3° to 45°7°)	38°3°	0%	0 mph0 km/h, gusts 6 mph9 km/h	100%	43%	0
Mon 8a	Sunny	39°4° (likely 38°3° to 45°7°)	39°4°	0%	0 mph0 km/h, gusts 5 mph7 km/h	100%	44%	0
Mon 9a	Mostly cloudy	49°9° (likely 43°6° to 49°9°)	49°9°	0%	0 mph0 km/h, gusts 5 mph9 km/h	83%	41%	1
Mon 10a	Sunny	55°13° (likely 53°12° to 56°13°)	55°13°	0%	0 mph0 km/h, gusts 10 mph16 km/h	74%	18%	2
Mon 11a	Sunny	59°15° (likely 58°14° to 62°17°)	59°15°	0%	5 mph8 km/h from W, gusts 11 mph18 km/h	69%	0%	3
Mon 12p	Sunny	62°17° (likely 62°17° to 64°18°)	62°17°	0%	5 mph8 km/h from W, gusts 11 mph18 km/h	62%	9%	4
Mon 1p	Sunny	65°18° (likely 64°18° to 66°19°)	65°18°	0%	5 mph8 km/h from W, gusts 11 mph18 km/h	54%	0%	4
Mon 2p	Sunny	67°19° (likely 65°18° to 67°19°)	67°19°	0%	5 mph8 km/h from W, gusts 11 mph17 km/h	50%	0%	4
Mon 3p	Sunny	69°21° (likely 66°19° to 69°21°)	69°21°	0%	5 mph8 km/h from W, gusts 12 mph19 km/h	47%	9%	4
Mon 4p	Sunny	69°21° (likely 66°19° to 69°21°)	69°21°	0%	5 mph8 km/h from W, gusts 12 mph20 km/h	47%	0%	3

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 24. Sunny. High 64°18°, low 34°1°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 43°6°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 35°2°
  Dry
Official NWS forecast
Today: Sunny, with a high near 64. East wind around 5 mph.
Tonight: Widespread frost after 10pm. Clear, with a low around 34. Southeast wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–64°18°
Low, likely
34°1°–39°4°
Wind
6 mph9 km/h, gusts 14 mph22 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 66°19°, low 38°3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Official NWS forecast
Day: Widespread frost before 9am. Sunny, with a high near 66. North wind 0 to 5 mph.
Night: Patchy frost after 11pm. Clear, with a low around 38. West wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–66°19°
Low, likely
38°3°–41°5°
Wind
7 mph11 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 69°21°, low 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly cloudy, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 51°11°
  Dry
Official NWS forecast
Day: Patchy frost before 9am. Sunny, with a high near 69. Northwest wind 0 to 5 mph.
Night: Clear, with a low around 46.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
66°19°–69°21°
Low, likely
38°3°–46°8°
Wind
9 mph14 km/h, gusts 15 mph23 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 67°19°, low 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  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 41.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–67°19°
Low, likely
41°5°–50°10°
Wind
10 mph17 km/h, gusts 23 mph37 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 66°19°, low 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°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 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–66°19°
Low, likely
42°6°–46°8°
Wind
9 mph14 km/h, gusts 17 mph27 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 70°21°, low 49°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Mostly 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: Mostly sunny, with a high near 70.
Night: Mostly clear, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
47°8°–49°9°
Wind
9 mph14 km/h, gusts 25 mph41 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 73°23°, low 50°10°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  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, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 73.
Night: Mostly clear, with a low around 50.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
73°23°
Low, likely
48°9°–52°11°
Wind
7 mph12 km/h, gusts 28 mph45 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 69°21°, low 49°9°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 52°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
64°18°–72°22°
Low, likely
48°9°–51°11°
Wind
9 mph14 km/h, gusts 28 mph46 km/h
UV peak
4
Sunday, Nov 1. Drizzle. High 70°21°, low 52°11°. Rain 0.02 in0.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 69°21°
  20% chance
3. Evening
  6 PM–midnight
  Drizzle, 64°18°
  30% chance · 0.05 in1.3 mm
4. Overnight
  midnight–6 AM
  Drizzle, 63°17°
  30% chance · 0.08 in2.1 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
47°8°–55°13°
Wind
12 mph20 km/h, gusts 22 mph35 km/h
UV peak
2
Monday, Nov 2. Showers. High 71°22°, low 61°16°. Rain 0.26 in6.6 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Showers, 66°19°
  30% chance · 0.13 in3.2 mm
2. Afternoon
  noon–6 PM
  Drizzle, 71°22°
  20% chance · 0.06 in1.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 67°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
65°18°–78°26°
Low, likely
58°14°–69°21°
Wind
22 mph36 km/h, gusts 40 mph64 km/h

10 days15 days30 days

The outlook

Today
Dry, high 64°, low 34°.
Tomorrow
Dry, high 66°, low 38°.
Monday
Dry, high 69°, low 46°, warming up.
Rest of week
Mostly dry, highs 66–73°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (PHI) (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

Chesapeake Bay at Havre de Grace (IN MLLW)

23 mi

Below flood stage

Level: 1.5 ft

Forecast peak 3.8 ft Sat 9 PM, action stage

Reading from Sat 4 PM · NWS gauge page

Chesapeake Bay at Tolchester Beach (IN MLLW)

17 mi

Below flood stage

Level: 2.7 ft

Forecast peak 3.1 ft Sat 6 PM

Reading from Sat 4:30 PM · NWS gauge page

Chesapeake and Delaware Canal at Chesapeake City (IN MLLW)

21 mi

Below flood stage

Level: 1.7 ft

Forecast peak 4.3 ft Sat 10 PM

Reading from Sat 4:36 PM · NWS gauge page

Unicorn Branch near Millington

3.4 mi

Level: 1.7 ft

Reading from Sat 4 PM · NWS gauge page

Sun & moon

Sun

Daylight: 10 h 49 min; Losing 2 min 21 s a day; shortest Dec 21, 1 h 25 min less
Golden hour: 5:35–6:29 PM; Morning 7:06–7:59 AM
Blue hour: 6:29–6:39 PM; Morning 6:55–7:06 AM; first light 6:55 AM

Stars tonight? Fair

Clear 6:39 PM–6:56 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:35 AM · rises 5:08 PM
Full moon: Oct 26
New moon: Nov 9

Looking northwest from Crumpton. The highest point on the skyline is about 4,800 ft, 38 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

1 active weather alert

Frost Advisory

Crumpton, MD weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Chesapeake Bay at Havre de Grace (IN MLLW)

Chesapeake Bay at Tolchester Beach (IN MLLW)

Chesapeake and Delaware Canal at Chesapeake City (IN MLLW)

Unicorn Branch near Millington

Sun & moon

Sun

Stars tonight? Fair

Moon