Frost Advisory
Ends in 4 h 21 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 4:15 AM EDT at KFDK

Ballenger Creek, MD weather

Foggy and 35°2°.

Forecasts agree

Now 35°2°

Fog

Wind: Calm; Light through 4 PM
Visibility: 0.5 mi0.8 km; Fog · under 1 mi1.6 km
Dew point: 35°2°; Dry, static shocks likely
Humidity: 100%; Air 35°2°, dew point 35°2° · frost likely
UV index: 0Low; Moderate 11 AM–5 PM · peak 4
Air quality: 8Good; Ozone · tomorrow moderate
Pressure: 30.5 inHg1033 hPa; Rising slowly · +0.02 inHg+0.6 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

6°3° cooler than this time yesterday (41°5° then, 35°2° now)

Good hours for

Low 34°1° today at 7 AM
Above 50°10° today by 11 AM
High 63°17° today at 3 PM
Drops 12°7° tonight 6–9 PM (60°16° → 48°9°)
Below 50°10° tonight after 8 PM

TonightNear 37°3° · Clear
This morningUp to 53°12° by 11 AM · Clear
This afternoonUp to 63°17° by 3 PM · Clear
TonightDown to 35°2° by 4 AM · Clear
Tomorrow morningUp to 55°13° by 11 AM · Clear
Tomorrow afternoonUp to 65°18° by 3 PM · Clear
Tomorrow nightDown to 40°4° by 2 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 4a	Clear	37°3° (likely 37°3° to 43°6°)	37°3°	0%	1 mph2 km/h from N, gusts 4 mph7 km/h	96%	1%	0
Sat 5a	Clear	36°2° (likely 36°2° to 42°6°)	36°2°	0%	1 mph2 km/h from N, gusts 5 mph8 km/h	100%	1%	0
Sat 6a	Clear	35°2° (likely 35°2° to 42°6°)	35°2°	0%	0 mph0 km/h, gusts 6 mph9 km/h	100%	9%	0
Sat 7a	Sunny	34°1° (likely 34°1° to 41°5°)	34°1°	0%	1 mph2 km/h from NE, gusts 6 mph9 km/h	100%	14%	0
Sat 8a	Sunny	34°1° (likely 34°1° to 41°5°)	34°1°	0%	1 mph2 km/h from NE, gusts 6 mph10 km/h	100%	16%	0
Sat 9a	Sunny	41°5° (likely 40°4° to 45°7°)	41°5°	0%	1 mph2 km/h from NE, gusts 6 mph9 km/h	92%	15%	1
Sat 10a	Sunny	49°9° (likely 46°8° to 51°11°)	49°9°	0%	1 mph2 km/h from NE, gusts 6 mph10 km/h	74%	0%	2
Sat 11a	Sunny	53°12° (likely 52°11° to 56°13°)	53°12°	0%	1 mph2 km/h from NE, gusts 6 mph10 km/h	66%	0%	3
Sat 12p	Sunny	57°14° (likely 56°13° to 58°14°)	57°14°	0%	1 mph2 km/h from E, gusts 7 mph12 km/h	55%	0%	4
Sat 1p	Sunny	59°15° (likely 59°15° to 61°16°)	59°15°	0%	1 mph2 km/h from SE, gusts 8 mph13 km/h	49%	0%	4
Sat 2p	Sunny	62°17° (likely 60°16° to 62°17°)	62°17°	0%	1 mph2 km/h from SE, gusts 7 mph12 km/h	43%	1%	4
Sat 3p	Sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	41%	2%	4
Sat 4p	Sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	43%	3%	3
Sat 5p	Sunny	62°17° (likely 60°16° to 62°17°)	62°17°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	44%	8%	1
Sat 6p	Clear	60°16° (likely 56°13° to 60°16°)	60°16°	0%	1 mph2 km/h from E, gusts 8 mph12 km/h	47%	8%	0
Sat 7p	Clear	53°12° (likely 51°11° to 54°12°)	53°12°	0%	1 mph2 km/h from E, gusts 7 mph11 km/h	61%	11%	0
Sat 8p	Clear	48°9° (likely 48°9° to 52°11°)	48°9°	0%	1 mph2 km/h from E, gusts 7 mph12 km/h	74%	5%	0
Sat 9p	Clear	44°7° (likely 44°7° to 50°10°)	44°7°	0%	0 mph0 km/h, gusts 7 mph11 km/h	86%	0%	0
Sat 10p	Clear	42°6° (likely 42°6° to 48°9°)	42°6°	0%	0 mph0 km/h, gusts 4 mph7 km/h	89%	0%	0
Sat 11p	Clear	40°4° (likely 40°4° to 46°8°)	40°4°	0%	0 mph0 km/h, gusts 4 mph6 km/h	96%	0%	0
Sun 12a	Clear	39°4° (likely 39°4° to 46°8°)	39°4°	0%	0 mph0 km/h, gusts 3 mph6 km/h	100%	1%	0
Sun 1a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	96%	11%	0
Sun 2a	Clear	37°3° (likely 37°3° to 44°7°)	37°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	13%	0
Sun 3a	Clear	36°2° (likely 36°2° to 43°6°)	36°2°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	11%	0
Sun 4a	Clear	35°2° (likely 35°2° to 43°6°)	35°2°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	11%	0
Sun 5a	Clear	35°2° (likely 35°2° to 43°6°)	35°2°	0%	0 mph0 km/h, gusts 6 mph9 km/h	100%	13%	0
Sun 6a	Clear	35°2° (likely 35°2° to 42°6°)	35°2°	0%	0 mph0 km/h, gusts 6 mph9 km/h	100%	17%	0
Sun 7a	Sunny	34°1° (likely 34°1° to 42°6°)	34°1°	0%	0 mph0 km/h, gusts 5 mph9 km/h	100%	16%	0
Sun 8a	Sunny	35°2° (likely 34°1° to 42°6°)	35°2°	0%	0 mph0 km/h, gusts 6 mph9 km/h	100%	14%	0
Sun 9a	Sunny	42°6° (likely 39°4° to 47°8°)	42°6°	0%	0 mph0 km/h, gusts 5 mph9 km/h	89%	8%	1
Sun 10a	Sunny	50°10° (likely 48°9° to 52°11°)	50°10°	0%	0 mph0 km/h, gusts 4 mph7 km/h	74%	4%	2
Sun 11a	Sunny	55°13° (likely 54°12° to 57°14°)	55°13°	0%	0 mph0 km/h, gusts 4 mph6 km/h	66%	5%	3
Sun 12p	Mostly sunny	58°14° (likely 58°14° to 60°16°)	58°14°	0%	0 mph0 km/h, gusts 6 mph9 km/h	62%	13%	4
Sun 1p	Mostly sunny	62°17° (likely 60°16° to 63°17°)	62°17°	0%	0 mph0 km/h, gusts 6 mph9 km/h	54%	17%	4
Sun 2p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	48%	11%	4
Sun 3p	Sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	46%	6%	4
Sun 4p	Sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	46%	6%	3
Sun 5p	Sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	46%	7%	1
Sun 6p	Clear	62°17° (likely 58°14° to 62°17°)	62°17°	0%	0 mph0 km/h, gusts 6 mph9 km/h	52%	0%	0
Sun 7p	Clear	55°13° (likely 54°12° to 56°13°)	55°13°	0%	0 mph0 km/h, gusts 4 mph6 km/h	69%	0%	0
Sun 8p	Clear	51°11° (likely 51°11° to 53°12°)	51°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	80%	0%	0
Sun 9p	Clear	48°9° (likely 48°9° to 51°11°)	48°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	89%	0%	0
Sun 10p	Clear	45°7° (likely 45°7° to 50°10°)	45°7°	0%	0 mph0 km/h, gusts 3 mph4 km/h	96%	0%	0
Sun 11p	Clear	43°6° (likely 43°6° to 49°9°)	43°6°	0%	0 mph0 km/h, gusts 1 mph1 km/h	100%	0%	0
Mon 12a	Clear	42°6° (likely 42°6° to 48°9°)	42°6°	0%	0 mph0 km/h, gusts 2 mph2 km/h	100%	0%	0
Mon 1a	Clear	41°5° (likely 41°5° to 47°8°)	41°5°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	0%	0
Mon 2a	Clear	40°4° (likely 40°4° to 47°8°)	40°4°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	0%	0
Mon 3a	Clear	40°4° (likely 38°3° to 48°9°)	40°4°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	0%	0

Days ahead

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

Today, Oct 24. Fog. High 63°17°, low 34°1°. Typical 62°17° / 44°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 34°1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 35°2°
  Dry
Official NWS forecast
Today: Areas of frost and patchy fog before 9am. Sunny, with a high near 63. East wind around 2 mph.
Tonight: Areas of frost and patchy fog. Clear, with a low around 34. North wind around 1 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–63°17°
Low, likely
34°1°–41°5°
Typical high / low
62°17° / 44°7°
Wind
5 mph9 km/h, gusts 13 mph22 km/h
UV peak
4
Tomorrow, Oct 25. Fog. High 65°18°, low 35°2°. Typical 61°16° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 35°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°4°
  Dry
Official NWS forecast
Day: Patchy frost and patchy fog before 9am. Sunny, with a high near 65. South wind around 1 mph.
Night: Clear, with a low around 35. Wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–65°18°
Low, likely
34°1°–41°5°
Typical high / low
61°16° / 43°6°
Wind
6 mph10 km/h, gusts 12 mph20 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 70°21°, low 46°8°. Typical 61°16° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy frost before 9am. Sunny, with a high near 70.
Night: Mostly clear, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
35°2°–46°8°
Typical high / low
61°16° / 43°6°
Wind
9 mph15 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 66°19°, low 42°6°. Typical 60°16° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°11°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 43°6°
  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 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–68°20°
Low, likely
42°6°–51°11°
Typical high / low
60°16° / 42°6°
Wind
11 mph17 km/h, gusts 18 mph29 km/h
UV peak
4
Wednesday, Oct 28. Mostly cloudy. High 65°18°, low 45°7°. Typical 60°16° / 42°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  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 45.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
59°15°–65°18°
Low, likely
37°3°–45°7°
Typical high / low
60°16° / 42°6°
Wind
8 mph13 km/h, gusts 17 mph27 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 70°21°, low 47°8°. Typical 60°16° / 42°6°. Dry. Mostly 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, 47°8°
  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 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–70°21°
Low, likely
42°6°–47°8°
Typical high / low
60°16° / 42°6°
Wind
7 mph11 km/h, gusts 21 mph34 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 73°23°, low 46°8°. Typical 60°16° / 41°5°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°15°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 73.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
68°20°–74°23°
Low, likely
43°6°–48°9°
Typical high / low
60°16° / 41°5°
Wind
10 mph16 km/h, gusts 16 mph25 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 68°20°, low 47°8°. Typical 59°15° / 41°5°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  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
63°17°–71°22°
Low, likely
43°6°–50°10°
Typical high / low
59°15° / 41°5°
Wind
9 mph14 km/h, gusts 17 mph27 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 67°19°, low 50°10°. Typical 59°15° / 41°5°. Rain 0.01 in0.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°16°
  20% chance
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  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
61°16°–72°22°
Low, likely
47°8°–53°12°
Typical high / low
59°15° / 41°5°
Wind
10 mph17 km/h, gusts 24 mph38 km/h
UV peak
2
Monday, Nov 2. Cloudy. High 66°19°, low 57°14°. Typical 58°14° / 40°4°. Rain 0.22 in5.6 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 60°16°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  30% chance · 0.09 in2.3 mm
3. Evening
  6 PM–midnight
  Cloudy, 60°15°
  30% chance · 0.03 in0.8 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
62°17°–72°22°
Low, likely
56°13°–58°14°
Typical high / low
58°14° / 40°4°
Wind
16 mph26 km/h, gusts 37 mph59 km/h
UV peak
1

10 days15 days30 days

The outlook

Today
Dry, high 63°, low 34°.
Tomorrow
Dry, high 65°, low 35°.
Monday
Dry, high 70°, low 46°, warming up.
Rest of week
Mostly dry, highs 65–73°.

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

Monocacy River near Frederick at Interstate 70

3.3 mi

Below flood stage

Level: 1.7 ft
Flow: 176 cfs

Forecast peak 1.7 ft Sat 8 AM

Reading from Sat 2:30 AM · NWS gauge page

Potomac River at Point of Rocks

9.9 mi

Below flood stage

Level: 1.9 ft
Flow: 3,190 cfs

Forecast peak 1.6 ft Sat 8 AM

Reading from Sat 2:55 AM · NWS gauge page

Monocacy River at Monocacy Blvd. in Frederick

4.7 mi

Below flood stage

Level: 1.6 ft
Flow: 119 cfs

Reading from Sat 2:15 AM · NWS gauge page

Bennett Creek at Park Mills

6.0 mi

Below flood stage

Level: 1.6 ft
Flow: 23 cfs

Reading from Sat 2:45 AM · NWS gauge page

For your home

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

Heating this week

About 65% less heating than a typical week.

This week 33Typical 95

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 21 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 35°F).

Open the windows?

Today, 2:00 PM–6:00 PM

Good stretch to open the windows.

Is this typical?

Damascus 3 Ssw · official normals 1991–2020 · records 1993–2026

Oct 24, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

On average 2°1° colder than normal (daily mean temperature).

−8°−4°SunOct 18
−3°−2°MonOct 19
+1°TueOct 20
−1°WedOct 21
+1°ThuOct 22
—FriOct 23
—SatOct 24

Ballenger Creek weather by month: normals, records, snow and freeze dates

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: 5:40–6:34 PM; Morning 7:12–8:06 AM
Blue hour: 6:34–6:45 PM; Morning 7:01–7:12 AM; first light 7:01 AM

Stars tonight? Good

Clear 4:39–7:01 AM; moon 96% lit, sets 5:41 AM.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:41 AM · rises 5:14 PM
Full moon: Oct 26
New moon: Nov 9

Looking northwest from Ballenger Creek. The highest point on the skyline is about 2,400 ft, 17 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

Ballenger Creek, MD weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Monocacy River near Frederick at Interstate 70

Potomac River at Point of Rocks

Monocacy River at Monocacy Blvd. in Frederick

Bennett Creek at Park Mills

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? Good

Moon