Observed 11:10 PM EDT at KTHV

Lake Heritage, PA weather

Clear and 36°2°.

Forecasts agree

Now 36°2°

Clear

Wind: Calm; Light through 11 AM
Dew point: 36°2°; Comfortable
Humidity: 100%; Air 36°2°, dew point 36°2° · frost likely
UV tomorrow: 4Moderate; Moderate 11 AM–5 PM · peak 4
Air quality: 21Good; Ozone · tomorrow moderate
Pressure: 30.45 inHg1031 hPa; Rising slowly · +0.02 inHg+0.8 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

4°2° cooler than this time yesterday (41°5° then, 37°3° now)

Good hours for

Below freezing tonight 5–9 AM (low 32°0°)
Low 32°0° tonight at 5 AM
Above 50°10° tomorrow by 11 AM
High 61°16° tomorrow at 4 PM
Below 50°10° tomorrow night after 8 PM

TonightDown to 32°0° by 5 AM · freezing, low 32°0° · Clear
Tomorrow morningUp to 53°12° by 11 AM · freezing, low 32°0° · Clear
Tomorrow afternoonUp to 61°16° by 4 PM · Clear
Tomorrow nightDown to 36°2° by 4 AM · Clear
Sunday morningUp to 54°12° by 11 AM · Clear
Sunday afternoonUp to 64°18° by 3 PM · Clear
Sunday nightDown to 44°7° by 10 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
Fri 11p	Clear	42°6° (likely 42°6° to 46°8°)	42°6°	0%	0 mph0 km/h, gusts 3 mph5 km/h	93%	19%	0
Sat 12a	Clear	40°4° (likely 40°4° to 45°7°)	40°4°	0%	0 mph0 km/h, gusts 3 mph4 km/h	96%	9%	0
Sat 1a	Clear	37°3° (likely 37°3° to 44°7°)	37°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	8%	0
Sat 2a	Clear	35°2° (likely 35°2° to 43°6°)	35°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	12%	0
Sat 3a	Clear	34°1° (likely 34°1° to 42°6°)	34°1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	5%	0
Sat 4a	Clear	33°1° (likely 33°1° to 41°5°)	33°1°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	3%	0
Sat 5a	Clear	32°0° (likely 32°0° to 40°4°)	32°0°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	3%	0
Sat 6a	Clear	32°0° (likely 32°0° to 39°4°)	32°0°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	2%	0
Sat 7a	Sunny	32°0° (likely 32°0° to 38°3°)	32°0°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	2%	0
Sat 8a	Sunny	32°0° (likely 32°0° to 38°3°)	32°0°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	15%	0
Sat 9a	Sunny	39°4° (likely 38°3° to 43°6°)	39°4°	0%	0 mph0 km/h, gusts 4 mph6 km/h	89%	13%	1
Sat 10a	Sunny	46°8° (likely 46°8° to 49°9°)	46°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	71%	1%	2
Sat 11a	Sunny	53°12° (likely 52°11° to 54°12°)	53°12°	0%	0 mph0 km/h, gusts 5 mph9 km/h	59%	0%	3
Sat 12p	Sunny	56°13° (likely 56°13° to 57°14°)	56°13°	0%	1 mph2 km/h from SE, gusts 7 mph12 km/h	49%	0%	4
Sat 1p	Sunny	59°15° (likely 58°14° to 59°15°)	59°15°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	40%	0%	4
Sat 2p	Sunny	60°16° (likely 59°15° to 60°16°)	60°16°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	39%	0%	4
Sat 3p	Sunny	60°16° (likely 60°16° to 61°16°)	60°16°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	39%	0%	4
Sat 4p	Sunny	61°16° (likely 60°16° to 61°16°)	61°16°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	36%	0%	3
Sat 5p	Sunny	60°16° (likely 59°15° to 60°16°)	60°16°	0%	0 mph0 km/h, gusts 6 mph10 km/h	41%	2%	1
Sat 6p	Clear	57°14° (likely 55°13° to 57°14°)	57°14°	0%	0 mph0 km/h, gusts 7 mph11 km/h	45%	0%	0
Sat 7p	Clear	52°11° (likely 51°11° to 52°11°)	52°11°	0%	0 mph0 km/h, gusts 6 mph10 km/h	59%	1%	0
Sat 8p	Clear	47°8° (likely 47°8° to 49°9°)	47°8°	0%	0 mph0 km/h, gusts 6 mph10 km/h	71%	1%	0
Sat 9p	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	0 mph0 km/h, gusts 6 mph10 km/h	79%	1%	0
Sat 10p	Clear	41°5° (likely 41°5° to 46°8°)	41°5°	0%	0 mph0 km/h, gusts 7 mph11 km/h	86%	0%	0
Sat 11p	Clear	40°4° (likely 40°4° to 44°7°)	40°4°	0%	0 mph0 km/h, gusts 5 mph7 km/h	92%	0%	0
Sun 12a	Clear	39°4° (likely 39°4° to 43°6°)	39°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	92%	0%	0
Sun 1a	Clear	38°3° (likely 38°3° to 42°6°)	38°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	96%	0%	0
Sun 2a	Clear	38°3° (likely 38°3° to 41°5°)	38°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	92%	0%	0
Sun 3a	Clear	37°3° (likely 37°3° to 40°4°)	37°3°	0%	0 mph0 km/h, gusts 2 mph4 km/h	96%	2%	0
Sun 4a	Clear	36°2° (likely 36°2° to 40°4°)	36°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	92%	0%	0
Sun 5a	Clear	36°2° (likely 36°2° to 39°4°)	36°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	92%	4%	0
Sun 6a	Clear	35°2° (likely 35°2° to 39°4°)	35°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	92%	2%	0
Sun 7a	Sunny	34°1° (likely 34°1° to 38°3°)	34°1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	92%	1%	0
Sun 8a	Sunny	36°2° (likely 34°1° to 38°3°)	36°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	92%	12%	0
Sun 9a	Sunny	41°5° (likely 38°3° to 43°6°)	41°5°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	14%	1
Sun 10a	Sunny	48°9° (likely 48°9° to 50°10°)	48°9°	0%	0 mph0 km/h, gusts 2 mph4 km/h	80%	6%	2
Sun 11a	Sunny	54°12° (likely 54°12° to 55°13°)	54°12°	0%	0 mph0 km/h, gusts 5 mph9 km/h	64%	6%	3
Sun 12p	Sunny	58°14° (likely 58°14° to 59°15°)	58°14°	0%	0 mph0 km/h, gusts 7 mph12 km/h	55%	10%	4
Sun 1p	Sunny	61°16° (likely 60°16° to 61°16°)	61°16°	0%	1 mph2 km/h from S, gusts 8 mph14 km/h	50%	12%	4
Sun 2p	Sunny	62°17° (likely 61°16° to 62°17°)	62°17°	0%	1 mph2 km/h from S, gusts 9 mph14 km/h	44%	11%	4
Sun 3p	Sunny	64°18° (likely 62°17° to 64°18°)	64°18°	0%	1 mph2 km/h from S, gusts 8 mph13 km/h	45%	4%	4
Sun 4p	Sunny	64°18° (likely 62°17° to 64°18°)	64°18°	0%	1 mph2 km/h from S, gusts 8 mph12 km/h	45%	2%	3
Sun 5p	Sunny	62°17° (likely 61°16° to 62°17°)	62°17°	0%	1 mph2 km/h from S, gusts 7 mph12 km/h	48%	1%	1
Sun 6p	Clear	59°15° (likely 56°13° to 59°15°)	59°15°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	55%	0%	0
Sun 7p	Clear	54°12° (likely 51°11° to 54°12°)	54°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	66%	0%	0
Sun 8p	Clear	49°9° (likely 47°8° to 51°11°)	49°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	83%	0%	0
Sun 9p	Clear	46°8° (likely 42°6° to 49°9°)	46°8°	0%	0 mph0 km/h, gusts 3 mph4 km/h	96%	0%	0
Sun 10p	Clear	44°7° (likely 40°4° to 47°8°)	44°7°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	0%	0

Days ahead

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

Today, Oct 23. Mostly sunny. High 61°16°, low 32°0°. Typical 63°17° / 41°5°. Dry. Forecasts agree.
1. Overnight
  midnight–6 AM
  Clear, 32°0°
  Dry
Official NWS forecast
Tonight: Patchy fog after 3am. Mostly clear, with a low around 32. Wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–62°17°
Low, likely
32°0°–45°7°
Typical high / low
63°17° / 41°5°
Wind
9 mph14 km/h, gusts 18 mph29 km/h
UV peak
4
Tomorrow, Oct 24. Fog. High 62°17°, low 34°1°. Typical 63°17° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 32°0°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 36°2°
  Dry
Official NWS forecast
Day: Patchy fog before 9am. Sunny, with a high near 62. Southeast wind around 1 mph.
Night: Patchy fog between 1am and 4am. Clear, with a low around 34. Wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
60°16°–62°17°
Low, likely
34°1°–38°3°
Typical high / low
63°17° / 40°4°
Wind
6 mph10 km/h, gusts 12 mph19 km/h
UV peak
4
Sunday, Oct 25. Fog. High 64°18°, low 35°2°. Typical 63°17° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Official NWS forecast
Day: Areas of fog between 9am and 10am. Sunny, with a high near 64. Southwest wind around 1 mph.
Night: Areas of fog between 9pm and 5am. Mostly clear, with a low around 35. West wind around 1 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
62°17°–64°18°
Low, likely
34°1°–38°3°
Typical high / low
63°17° / 40°4°
Wind
8 mph13 km/h
UV peak
4
Monday, Oct 26. Fog. High 70°21°, low 45°7°. Typical 62°17° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 10am. Sunny, with a high near 70.
Night: Mostly clear, with a low around 45.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
68°20°–70°21°
Low, likely
33°1°–45°7°
Typical high / low
62°17° / 40°4°
Wind
9 mph15 km/h
UV peak
4
Tuesday, Oct 27. Partly sunny. High 66°19°, low 42°6°. Typical 62°17° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 42°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 66.
Night: Partly cloudy, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–67°19°
Low, likely
42°6°–48°9°
Typical high / low
62°17° / 39°4°
Wind
13 mph21 km/h, gusts 22 mph36 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 64°18°, low 46°8°. Typical 62°17° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 64.
Night: Mostly cloudy, with a low around 46.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
59°15°–64°18°
Low, likely
39°4°–46°8°
Typical high / low
62°17° / 39°4°
Wind
8 mph12 km/h, gusts 18 mph29 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 69°21°, low 47°8°. Typical 61°16° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 69.
Night: Partly cloudy, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
42°6°–50°10°
Typical high / low
61°16° / 39°4°
Wind
8 mph13 km/h, gusts 21 mph34 km/h
UV peak
4
Friday, Oct 30. Sunny. High 70°21°, low 46°8°. Typical 61°16° / 38°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°20°
  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: Mostly sunny, with a high near 70.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
65°18°–74°23°
Low, likely
46°8°–47°8°
Typical high / low
61°16° / 38°3°
Wind
9 mph15 km/h, gusts 19 mph31 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 69°21°, low 46°8°. Typical 60°16° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°20°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–73°23°
Low, likely
42°6°–50°10°
Typical high / low
60°16° / 38°3°
Wind
11 mph17 km/h, gusts 19 mph30 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 66°19°, low 48°9°. Typical 60°16° / 38°3°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 46°8°
  20% chance
2. Afternoon
  noon–6 PM
  Partly sunny, 65°18°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 58°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
60°16°–71°22°
Low, likely
44°7°–55°13°
Typical high / low
60°16° / 38°3°
Wind
11 mph17 km/h, gusts 22 mph35 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 61°, low 32°.
Tomorrow
Dry, high 62°, low 34°.
Sunday
Dry, high 64°, low 35°.
Rest of week
Mostly dry, highs 64–70°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (CTP) (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 at Bridgeport

9.3 mi

Below flood stage

Level: 2.4 ft
Flow: 19 cfs

Reading from Fri 10:30 PM · NWS gauge page

Bermudian Creek near Heidlersburg

12 mi

Level: 1.8 ft
Flow: 4 cfs

Reading from Fri 10:30 PM · NWS gauge page

Big Pipe Creek at Bruceville

14 mi

Below flood stage

Level: 1.0 ft
Flow: 25 cfs

Reading from Fri 10 PM · NWS gauge page

West Conewago Creek at East Berlin

14 mi

Level: 2.8 ft
Flow: 55 cfs

Reading from Fri 10:45 PM · NWS gauge page

For your home

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

Heating this week

About 63% less heating than a typical week.

This week 37Typical 98

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 27
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 22 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 36°F).

Open the windows?

Sat, 2:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

Emmitsburg 2 SE · official normals 1991–2020 · records 1956–2026

Oct 23, today vs a typical year

Today’s expected high is 2°1° colder than typical.

Last 7 days vs normal

On average 6°3° colder than normal (daily mean temperature).

−10°−6°SunOct 18
−7°−4°MonOct 19
±0°TueOct 20
−5°−3°WedOct 21
−4°−2°ThuOct 22
—FriOct 23
—SatOct 24

Lake Heritage weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 50 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 29 min less
Golden hour: 5:40–6:34 PM; Morning 7:10–8:04 AM
Blue hour: 6:34–6:45 PM; Morning 7:00–7:10 AM; first light 7:00 AM

Stars tonight? Good

Clear 11:36 PM–7:01 AM; moon 95% lit, sets 5:40 AM.

Moon

Waxing gibbous

95% lit · growing

Today: sets 4:32 AM · rises 4:48 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Lake Heritage. The highest point on the skyline is about 2,100 ft, 19 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.