Frost Advisory
Ends in 1 h
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 7:35 AM EDT at KDMW

Manchester, MD weather

Sunny and 36°2°.

Forecasts agree

Now 36°2°

Sunny

Wind: Calm; Light through 8 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: 53Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.51 inHg1033 hPa; Rising slowly · +0.03 inHg+1.0 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 11 AM
High 60°16° today at 2 PM
Below 50°10° tonight after 7 PM

This morningUp to 53°12° by 11 AM · Clear
This afternoonUp to 60°16° by 2 PM · Clear
TonightDown to 37°3° by 4 AM · Clear
Tomorrow morningUp to 55°13° by 11 AM · Clear
Tomorrow afternoonUp to 63°17° by 3 PM · Clear
Tomorrow nightDown to 40°4° 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 8a	Sunny	36°2° (likely 36°2° to 40°4°)	36°2°	0%	1 mph2 km/h from NE, gusts 3 mph5 km/h	100%	14%	0
Sat 9a	Sunny	41°5° (likely 39°4° to 44°7°)	41°5°	0%	1 mph2 km/h from NE, gusts 3 mph5 km/h	85%	13%	0
Sat 10a	Sunny	47°8° (likely 47°8° to 50°10°)	47°8°	0%	1 mph2 km/h from E, gusts 3 mph5 km/h	68%	0%	1
Sat 11a	Sunny	53°12° (likely 52°11° to 54°12°)	53°12°	0%	2 mph3 km/h from E, gusts 7 mph12 km/h	54%	0%	2
Sat 12p	Sunny	56°13° (likely 54°12° to 56°13°)	56°13°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	47%	0%	3
Sat 1p	Sunny	58°14° (likely 56°13° to 58°14°)	58°14°	0%	2 mph3 km/h from SE, gusts 8 mph12 km/h	42%	0%	3
Sat 2p	Sunny	60°16° (likely 57°14° to 60°16°)	60°16°	0%	3 mph5 km/h from SE, gusts 7 mph11 km/h	39%	0%	3
Sat 3p	Sunny	60°16° (likely 57°14° to 60°16°)	60°16°	0%	2 mph3 km/h from SE, gusts 7 mph10 km/h	39%	1%	2
Sat 4p	Sunny	60°16° (likely 57°14° to 60°16°)	60°16°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	41%	0%	1
Sat 5p	Sunny	59°15° (likely 56°13° to 59°15°)	59°15°	0%	3 mph5 km/h from SE, gusts 7 mph11 km/h	42%	0%	1
Sat 6p	Clear	55°13° (likely 52°11° to 55°13°)	55°13°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	51%	0%	0
Sat 7p	Clear	49°9° (likely 47°8° to 49°9°)	49°9°	0%	2 mph3 km/h from SE, gusts 7 mph10 km/h	63%	0%	0
Sat 8p	Clear	46°8° (likely 45°7° to 47°8°)	46°8°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	71%	0%	0
Sat 9p	Clear	44°7° (likely 44°7° to 46°8°)	44°7°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	76%	0%	0
Sat 10p	Clear	42°6° (likely 42°6° to 45°7°)	42°6°	0%	1 mph2 km/h from SE, gusts 5 mph9 km/h	79%	0%	0
Sat 11p	Clear	41°5° (likely 41°5° to 45°7°)	41°5°	0%	1 mph2 km/h from SE, gusts 5 mph7 km/h	82%	0%	0
Sun 12a	Clear	40°4° (likely 40°4° to 44°7°)	40°4°	0%	0 mph0 km/h, gusts 4 mph7 km/h	85%	0%	0
Sun 1a	Clear	40°4° (likely 40°4° to 43°6°)	40°4°	0%	0 mph0 km/h, gusts 4 mph7 km/h	85%	1%	0
Sun 2a	Clear	38°3° (likely 38°3° to 43°6°)	38°3°	0%	0 mph0 km/h, gusts 5 mph8 km/h	96%	0%	0
Sun 3a	Clear	38°3° (likely 38°3° to 42°6°)	38°3°	0%	0 mph0 km/h, gusts 4 mph6 km/h	96%	0%	0
Sun 4a	Clear	37°3° (likely 37°3° to 43°6°)	37°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	0%	0
Sun 5a	Clear	37°3° (likely 37°3° to 42°6°)	37°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	0%	0
Sun 6a	Clear	36°2° (likely 36°2° to 42°6°)	36°2°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	1%	0
Sun 7a	Sunny	36°2° (likely 36°2° to 41°5°)	36°2°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	0%	0
Sun 8a	Sunny	36°2° (likely 36°2° to 41°5°)	36°2°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	0%	0
Sun 9a	Sunny	44°7° (likely 40°4° to 45°7°)	44°7°	0%	1 mph2 km/h from E, gusts 2 mph3 km/h	82%	0%	1
Sun 10a	Sunny	50°10° (likely 50°10° to 51°11°)	50°10°	0%	0 mph0 km/h, gusts 2 mph3 km/h	68%	0%	2
Sun 11a	Sunny	55°13° (likely 54°12° to 57°14°)	55°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	59%	3%	3
Sun 12p	Sunny	57°14° (likely 56°13° to 59°15°)	57°14°	0%	1 mph2 km/h from SW, gusts 6 mph9 km/h	55%	6%	4
Sun 1p	Sunny	59°15° (likely 57°14° to 61°16°)	59°15°	0%	2 mph3 km/h from SW, gusts 7 mph11 km/h	51%	7%	4
Sun 2p	Sunny	62°17° (likely 58°14° to 62°17°)	62°17°	0%	3 mph5 km/h from SW, gusts 7 mph11 km/h	44%	23%	4
Sun 3p	Sunny	63°17° (likely 57°14° to 63°17°)	63°17°	0%	2 mph3 km/h from SW, gusts 7 mph11 km/h	43%	6%	4
Sun 4p	Sunny	63°17° (likely 57°14° to 63°17°)	63°17°	0%	2 mph3 km/h from S, gusts 7 mph11 km/h	43%	3%	3
Sun 5p	Sunny	62°17° (likely 57°14° to 62°17°)	62°17°	0%	2 mph3 km/h from SW, gusts 7 mph11 km/h	44%	1%	1
Sun 6p	Clear	57°14° (likely 53°12° to 57°14°)	57°14°	0%	1 mph2 km/h from SW, gusts 6 mph9 km/h	53%	1%	0
Sun 7p	Clear	52°11° (likely 50°10° to 53°12°)	52°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	66%	3%	0
Sun 8p	Clear	50°10° (likely 48°9° to 50°10°)	50°10°	0%	0 mph0 km/h, gusts 4 mph6 km/h	74%	3%	0
Sun 9p	Clear	48°9° (likely 47°8° to 49°9°)	48°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	80%	1%	0
Sun 10p	Clear	46°8° (likely 46°8° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 5 mph8 km/h	83%	0%	0
Sun 11p	Clear	44°7° (likely 44°7° to 46°8°)	44°7°	0%	0 mph0 km/h, gusts 5 mph8 km/h	89%	0%	0
Mon 12a	Clear	43°6° (likely 43°6° to 45°7°)	43°6°	0%	0 mph0 km/h, gusts 4 mph7 km/h	93%	0%	0
Mon 1a	Clear	43°6° (likely 43°6° to 45°7°)	43°6°	0%	1 mph2 km/h from W, gusts 5 mph7 km/h	89%	0%	0
Mon 2a	Clear	42°6° (likely 42°6° to 44°7°)	42°6°	0%	1 mph2 km/h from W, gusts 4 mph7 km/h	93%	0%	0
Mon 3a	Clear	41°5° (likely 41°5° to 44°7°)	41°5°	0%	1 mph2 km/h from W, gusts 3 mph6 km/h	92%	0%	0
Mon 4a	Clear	41°5° (likely 40°4° to 43°6°)	41°5°	0%	2 mph3 km/h from W, gusts 3 mph5 km/h	92%	1%	0
Mon 5a	Clear	40°4° (likely 39°4° to 43°6°)	40°4°	0%	2 mph3 km/h from W, gusts 3 mph5 km/h	92%	1%	0
Mon 6a	Mostly clear	38°3° (likely 38°3° to 42°6°)	38°3°	0%	2 mph3 km/h from W, gusts 3 mph5 km/h	100%	6%	0
Mon 7a	Sunny	38°3° (likely 38°3° to 42°6°)	38°3°	0%	2 mph3 km/h from W, gusts 3 mph5 km/h	100%	18%	0

Days ahead

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

Today, Oct 24. Mostly sunny. High 60°16°, low 36°2°. Typical 62°17° / 43°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  Dry
Official NWS forecast
Today: Areas of frost before 9am. Sunny, with a high near 60. East wind around 3 mph.
Tonight: Patchy fog between 2am and 4am, then patchy frost and patchy fog. Clear, with a low around 36. East wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
57°14°–60°16°
Low, likely
36°2°–39°4°
Typical high / low
62°17° / 43°6°
Wind
7 mph11 km/h, gusts 12 mph19 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 63°17°, low 38°3°. Typical 62°17° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  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
Day: Patchy frost and patchy fog before 9am. Sunny, with a high near 63. Southwest wind 0 to 3 mph.
Night: Clear, with a low around 38. West wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
58°14°–63°17°
Low, likely
38°3°–41°5°
Typical high / low
62°17° / 42°6°
Wind
7 mph11 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 67°19°, low 47°8°. Typical 62°17° / 42°6°. Dry. Forecasts 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, 53°12°
  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 67. West wind 2 to 6 mph.
Night: Mostly clear, with a low around 47.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–67°19°
Low, likely
38°3°–47°8°
Typical high / low
62°17° / 42°6°
Wind
9 mph15 km/h, gusts 14 mph23 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 62°17°, low 42°6°. Typical 61°16° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 42°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 62.
Night: Mostly clear, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–65°18°
Low, likely
42°6°–47°8°
Typical high / low
61°16° / 42°6°
Wind
12 mph19 km/h, gusts 22 mph36 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 61°16°, low 45°7°. Typical 61°16° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 42°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 51°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 61.
Night: Mostly cloudy, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
58°14°–61°16°
Low, likely
40°4°–45°7°
Typical high / low
61°16° / 41°5°
Wind
10 mph16 km/h, gusts 18 mph29 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 67°19°, low 49°9°. Typical 61°16° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 67.
Night: Mostly clear, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–67°19°
Low, likely
43°6°–49°9°
Typical high / low
61°16° / 41°5°
Wind
10 mph15 km/h, gusts 24 mph39 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 69°21°, low 47°8°. Typical 60°16° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 69°21°
  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 69.
Night: Mostly clear, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–71°22°
Low, likely
44°7°–50°10°
Typical high / low
60°16° / 41°5°
Wind
13 mph21 km/h, gusts 28 mph44 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 67°19°, low 46°8°. Typical 60°16° / 40°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 67°19°
  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.
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
58°14°–73°23°
Low, likely
39°4°–52°11°
Typical high / low
60°16° / 40°4°
Wind
13 mph21 km/h, gusts 28 mph45 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 65°18°, low 48°9°. Typical 60°16° / 40°4°. Rain 0.01 in0.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 55°13°
  20% chance
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  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
53°12°–70°21°
Low, likely
36°2°–53°12°
Typical high / low
60°16° / 40°4°
Wind
11 mph17 km/h, gusts 23 mph37 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 64°18°, low 51°11°. Typical 59°15° / 40°4°. Rain 0.05 in1.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  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
52°11°–71°22°
Low, likely
39°4°–57°14°
Typical high / low
59°15° / 40°4°
Wind
10 mph17 km/h, gusts 18 mph29 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 60°, low 36°.
Tomorrow
Dry, high 63°, low 38°, warming up.
Monday
Dry, high 67°, low 47°, warming up.
Rest of week
Mostly dry, highs 61–69°.

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

Grave Run near Beckleysville

5.6 mi

Below flood stage

Level: -0.7 ft

Reading from Sat 6 AM · NWS gauge page

Cranberry Branch near Westminster

6.0 mi

Below flood stage

Level: 1.3 ft
Flow: under 1 cfs

Reading from Sat 6:30 AM · NWS gauge page

Gunpowder Falls at Hoffmanville

6.1 mi

Below flood stage

Level: 1.1 ft
Flow: 7 cfs

Reading from Sat 6:15 AM · NWS gauge page

Georges Run near Beckleysville

6.4 mi

Below flood stage

Level: 0.2 ft

Reading from Sat 6:15 AM · NWS gauge page

For your home

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

Heating this week

About 64% less heating than a typical week.

This week 34Typical 95

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 26
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 17 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 36°F).

Open the windows?

Today, 2:00 PM–4:00 PM

Good stretch to open the windows.

Is this typical?

Millers 4 NE · official normals 1991–2020 · records 1988–2026

Oct 24, today vs a typical year

Today’s expected high is 2°1° 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
+4°+2°TueOct 20
±0°WedOct 21
±0°ThuOct 22
−1°FriOct 23
—SatOct 24

Manchester weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 48 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 26 min less
Golden hour: 5:38–6:32 PM; Morning 7:10–8:04 AM
Blue hour: 6:32–6:43 PM; Morning 6:59–7:10 AM; first light 6:59 AM

Stars tonight? Fair

Clear 6:43 PM–7 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:39 AM · rises 5:12 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Manchester.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

Manchester, MD weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Grave Run near Beckleysville

Cranberry Branch near Westminster

Gunpowder Falls at Hoffmanville

Georges Run near Beckleysville

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