Frost Advisory
Ends in 1 h 8 min
When
Until 9 AM EDT this morning.
Where
Carroll, Frederick, Cecil, Northern Baltimore, and Harford Counties in Maryland.
Issued for this forecast zone · National Weather Service Baltimore MD/Washington DC
What, impacts and precautionsHide details
What
Temperatures as low as 33 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: Frederick; Carroll; Northern Baltimore; Cecil; Northwest Harford; Southeast Harford
See it on weather.gov (opens in a new tab)

Observed 7:20 AM EDT at KILG

Cecilton, MD weather

Clear and 36°2°.

Forecasts agree

Now 36°2°

Clear

Wind: 3 mph5 km/h; From the northwest. Light through 7 PM
Dew point: 36°2°; Comfortable
Humidity: 100%; Air 36°2°, dew point 36°2° · frost likely
UV index: 0Low; Moderate 12–3 PM · peak 3
Air quality: 60Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.53 inHg1034 hPa; Rising slowly · +0.03 inHg+1.2 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Above 50°10° today by 10 AM
High 63°17° today at 2 PM
Drops 13°7° today 5–8 PM (63°17° → 50°10°)
Below 50°10° tonight after 8 PM
Drops 16°9° tomorrow 5–8 PM (66°19° → 50°10°)

This morningUp to 57°14° by 11 AM · Clear
This afternoonUp to 63°17° by 2 PM · Clear
TonightDown to 36°2° by 5 AM · Clear
Tomorrow morningUp to 58°14° by 11 AM · Clear
Tomorrow afternoonUp to 66°19° by 2 PM · Clear
Tomorrow nightDown to 37°3° by 5 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 7a	Sunny	34°1° (likely 34°1° to 40°4°)	34°1°	0%	2 mph3 km/h from NE, gusts 8 mph13 km/h	100%	6%	0
Sat 8a	Sunny	35°2° (likely 35°2° to 41°5°)	35°2°	0%	2 mph3 km/h from NE, gusts 7 mph12 km/h	100%	21%	0
Sat 9a	Sunny	44°7° (likely 42°6° to 45°7°)	42°6°	0%	3 mph5 km/h from NE, gusts 7 mph11 km/h	79%	20%	0
Sat 10a	Sunny	51°11° (likely 49°9° to 51°11°)	51°11°	0%	3 mph5 km/h from NE, gusts 9 mph14 km/h	66%	1%	1
Sat 11a	Sunny	57°14° (likely 53°12° to 57°14°)	57°14°	0%	3 mph5 km/h from NE, gusts 8 mph12 km/h	55%	0%	2
Sat 12p	Sunny	59°15° (likely 56°13° to 59°15°)	59°15°	0%	3 mph5 km/h from E, gusts 6 mph10 km/h	49%	0%	3
Sat 1p	Sunny	62°17° (likely 58°14° to 62°17°)	62°17°	0%	3 mph5 km/h from E, gusts 6 mph9 km/h	44%	0%	3
Sat 2p	Sunny	63°17° (likely 59°15° to 63°17°)	63°17°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	41%	0%	3
Sat 3p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	2 mph3 km/h from E, gusts 5 mph7 km/h	41%	0%	2
Sat 4p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	2 mph3 km/h from E, gusts 4 mph7 km/h	43%	0%	1
Sat 5p	Sunny	63°17° (likely 58°14° to 63°17°)	63°17°	0%	1 mph2 km/h from E, gusts 5 mph7 km/h	44%	0%	0
Sat 6p	Clear	58°14° (likely 54°12° to 58°14°)	58°14°	0%	0 mph0 km/h, gusts 5 mph8 km/h	53%	0%	0
Sat 7p	Clear	50°10° (likely 50°10° to 53°12°)	50°10°	0%	0 mph0 km/h, gusts 4 mph7 km/h	74%	0%	0
Sat 8p	Clear	46°8° (likely 46°8° to 51°11°)	46°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	83%	0%	0
Sat 9p	Clear	44°7° (likely 44°7° to 49°9°)	44°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	0%	0
Sat 10p	Clear	41°5° (likely 41°5° to 48°9°)	41°5°	0%	0 mph0 km/h, gusts 3 mph6 km/h	100%	0%	0
Sat 11p	Clear	41°5° (likely 41°5° to 47°8°)	41°5°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	0%	0
Sun 12a	Clear	40°4° (likely 40°4° to 46°8°)	40°4°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	0%	0
Sun 1a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	0%	0
Sun 2a	Clear	39°4° (likely 39°4° to 44°7°)	39°4°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	0%	0
Sun 3a	Clear	39°4° (likely 39°4° to 43°6°)	39°4°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	0%	0
Sun 4a	Clear	37°3° (likely 37°3° to 43°6°)	37°3°	0%	1 mph2 km/h from NE, gusts 4 mph7 km/h	100%	0%	0
Sun 5a	Clear	36°2° (likely 36°2° to 42°6°)	36°2°	0%	1 mph2 km/h from NE, gusts 5 mph9 km/h	100%	1%	0
Sun 6a	Clear	35°2° (likely 35°2° to 42°6°)	35°2°	0%	1 mph2 km/h from NE, gusts 5 mph9 km/h	100%	2%	0
Sun 7a	Sunny	35°2° (likely 35°2° to 41°5°)	35°2°	0%	1 mph2 km/h from NE, gusts 5 mph9 km/h	100%	2%	0
Sun 8a	Sunny	36°2° (likely 36°2° to 42°6°)	36°2°	0%	2 mph3 km/h from NE, gusts 6 mph10 km/h	100%	2%	0
Sun 9a	Sunny	45°7° (likely 43°6° to 46°8°)	45°7°	0%	2 mph3 km/h from NE, gusts 6 mph10 km/h	82%	1%	1
Sun 10a	Sunny	52°11° (likely 50°10° to 52°11°)	52°11°	0%	2 mph3 km/h from NE, gusts 6 mph10 km/h	66%	2%	2
Sun 11a	Sunny	58°14° (likely 55°13° to 58°14°)	58°14°	0%	2 mph3 km/h from NE, gusts 4 mph7 km/h	55%	4%	3
Sun 12p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	2 mph3 km/h from N, gusts 4 mph7 km/h	48%	2%	4
Sun 1p	Sunny	64°18° (likely 59°15° to 64°18°)	64°18°	0%	2 mph3 km/h from N, gusts 4 mph7 km/h	43%	2%	4
Sun 2p	Sunny	66°19° (likely 61°16° to 66°19°)	66°19°	0%	2 mph3 km/h from NW, gusts 4 mph6 km/h	38%	2%	4
Sun 3p	Sunny	66°19° (likely 61°16° to 66°19°)	66°19°	0%	2 mph3 km/h from NW, gusts 3 mph6 km/h	38%	4%	4
Sun 4p	Sunny	66°19° (likely 62°17° to 66°19°)	66°19°	0%	1 mph2 km/h from NW, gusts 3 mph5 km/h	42%	8%	2
Sun 5p	Sunny	66°19° (likely 60°16° to 66°19°)	66°19°	0%	0 mph0 km/h, gusts 3 mph5 km/h	43%	1%	1
Sun 6p	Clear	59°15° (likely 56°13° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 4 mph7 km/h	57%	0%	0
Sun 7p	Clear	50°10° (likely 50°10° to 55°13°)	50°10°	0%	0 mph0 km/h, gusts 4 mph7 km/h	80%	0%	0
Sun 8p	Clear	46°8° (likely 46°8° to 52°11°)	46°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	89%	0%	0
Sun 9p	Clear	42°6° (likely 42°6° to 50°10°)	42°6°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	1%	0
Sun 10p	Clear	40°4° (likely 40°4° to 48°9°)	40°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	2%	0
Sun 11p	Clear	40°4° (likely 40°4° to 46°8°)	40°4°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	1%	0
Mon 12a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	0 mph0 km/h, gusts 6 mph9 km/h	100%	5%	0
Mon 1a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	0 mph0 km/h, gusts 6 mph9 km/h	100%	4%	0
Mon 2a	Clear	38°3° (likely 38°3° to 45°7°)	38°3°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	3%	0
Mon 3a	Clear	38°3° (likely 38°3° to 46°8°)	38°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	0%	0
Mon 4a	Clear	38°3° (likely 38°3° to 45°7°)	38°3°	0%	1 mph2 km/h from W, gusts 3 mph4 km/h	100%	0%	0
Mon 5a	Clear	37°3° (likely 37°3° to 45°7°)	37°3°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	100%	1%	0
Mon 6a	Clear	36°2° (likely 36°2° to 45°7°)	36°2°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	100%	2%	0

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 24. Sunny. High 63°17°, low 35°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 35°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 36°2°
  Dry
Official NWS forecast
Today: Areas of frost before 9am. Sunny, with a high near 63. Northeast wind around 3 mph.
Tonight: Patchy fog between 10pm and 4am, then patchy frost and patchy fog. Clear, with a low around 35. Northeast wind around 1 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
60°16°–63°17°
Low, likely
35°2°–40°4°
Wind
6 mph10 km/h, gusts 12 mph19 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 66°19°, low 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  Dry
Official NWS forecast
Day: Patchy frost and patchy fog before 9am. Sunny, with a high near 66. North wind around 2 mph.
Night: Patchy frost after 5am. Clear, with a low around 36. Northwest wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–66°19°
Low, likely
36°2°–41°5°
Wind
6 mph10 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 68°20°, low 47°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  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, 51°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy frost before 8am. Sunny, with a high near 68. West wind 1 to 6 mph.
Night: Mostly clear, with a low around 47.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
66°19°–68°20°
Low, likely
39°4°–47°8°
Wind
9 mph15 km/h, gusts 15 mph24 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 65°18°, 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, 54°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 65.
Night: Mostly clear, with a low around 41.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–66°19°
Low, likely
41°5°–49°9°
Wind
11 mph17 km/h, gusts 25 mph40 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 64°18°, low 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 64.
Night: Mostly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–64°18°
Low, likely
41°5°–46°8°
Wind
9 mph14 km/h, gusts 15 mph24 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 68°20°, low 49°9°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  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, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 68.
Night: Mostly clear, with a low around 49.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
65°18°–68°20°
Low, likely
44°7°–49°9°
Wind
7 mph12 km/h, gusts 25 mph41 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 71°22°, low 48°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: 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
70°21°–73°23°
Low, likely
48°9°–50°10°
Wind
12 mph19 km/h, gusts 26 mph42 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, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  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
61°16°–74°23°
Low, likely
46°8°–51°11°
Wind
13 mph21 km/h, gusts 27 mph43 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 67°19°, low 50°10°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  20% chance
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  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
59°15°–71°22°
Low, likely
41°5°–54°12°
Wind
11 mph17 km/h, gusts 20 mph32 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 67°19°, low 55°13°. Rain 0.04 in1 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 58°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 60°15°
  30% 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
57°14°–73°23°
Low, likely
46°8°–59°15°
Wind
11 mph18 km/h, gusts 22 mph35 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 63°, low 35°.
Tomorrow
Dry, high 66°, low 36°, warming up.
Monday
Dry, high 68°, low 47°.
Rest of week
Mostly dry, highs 64–71°.

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

Chesapeake Bay at Havre de Grace (IN MLLW)

15 mi

Below flood stage

Level: 3.0 ft

Forecast peak 3.8 ft Sat 9 PM, action stage

Reading from Sat 6 AM · NWS gauge page

Chesapeake and Delaware Canal at Chesapeake City (IN MLLW)

9.0 mi

Below flood stage

Level: 3.2 ft

Forecast peak 4.2 ft Sat 9 AM

Reading from Sat 6:36 AM · NWS gauge page

Unicorn Branch near Millington

11 mi

Level: 1.7 ft

Reading from Sat 6 AM · NWS gauge page

Swan Creek at Swan Creek

17 mi

Below flood stage

Level: 2.9 ft

Reading from Sat 6:15 AM · NWS gauge page

Sun & moon

Sun

Daylight: 10 h 49 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 26 min less
Golden hour: 5:34–6:28 PM; Morning 7:06–8:00 AM
Blue hour: 6:28–6:39 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

96% lit · growing

Today: sets 5:34 AM · rises 5:08 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Cecilton. The highest point on the skyline is about 4,200 ft, 29 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

Cecilton, 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 and Delaware Canal at Chesapeake City (IN MLLW)

Unicorn Branch near Millington

Swan Creek at Swan Creek

Sun & moon

Sun

Stars tonight? Fair

Moon