Freeze Warning
Starts in 6 h 34 min
When
From midnight tonight to 9 AM EDT Saturday.
Where
Lancaster and Lebanon Counties.
Issued for this forecast zone · National Weather Service State College PA
What, impacts and precautionsHide details
What
Sub-freezing temperatures as low as 30 possible.
Impacts
Freezing conditions could kill crops and other sensitive vegetation.
Precautionary actions
Take steps to protect tender plants and vegetation from the cold if you wish to extend the growing season.
Areas: Lebanon; Lancaster
See it on weather.gov (opens in a new tab)

Observed 5:00 PM EDT at KLNS

Mountville, PA weather

Freeze Warning. 59°15° and sunny now.

Forecasts agree

Now 59°15°

Sunny

Wind: 6 mph9 km/h; From the northeast. Up to 6 mph9 km/h through 5 AM
Dew point: 34°1°; Dry, static shocks likely
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Air quality: 38Good; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.36 inHg1028 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Below 50°10° tonight after 8 PM
Low 35°2° tonight at 5 AM
Above 50°10° tomorrow by 11 AM
Fog Sunday 6–10 AM

TonightDown to 35°2° by 5 AM · Clear
Tomorrow morningUp to 52°11° by 11 AM · Clear
Tomorrow afternoonUp to 62°17° by 4 PM · Clear
Tomorrow nightDown to 37°3° by 5 AM · Clear
Sunday morningUp to 53°12° by 11 AM · Clear
Sunday afternoonUp to 65°18° by 4 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 5p	Sunny	59°15° (likely 58°14° to 60°16°)	59°15°	0%	3 mph5 km/h from NE, gusts 10 mph15 km/h	36%	2%	0
Fri 6p	Clear	56°13° (likely 54°12° to 57°14°)	56°13°	0%	2 mph3 km/h from NE, gusts 7 mph11 km/h	42%	4%	0
Fri 7p	Clear	52°11° (likely 51°11° to 53°12°)	52°11°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	52%	6%	0
Fri 8p	Mostly clear	48°9° (likely 48°9° to 50°10°)	48°9°	0%	1 mph2 km/h from E, gusts 8 mph12 km/h	63%	17%	0
Fri 9p	Partly cloudy	46°8° (likely 46°8° to 48°9°)	45°7°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	76%	48%	0
Fri 10p	Partly cloudy	45°7° (likely 44°7° to 47°8°)	45°7°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	79%	49%	0
Fri 11p	Clear	43°6° (likely 43°6° to 46°8°)	43°6°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	86%	42%	0
Sat 12a	Clear	41°5° (likely 40°4° to 45°7°)	41°5°	0%	1 mph2 km/h from E, gusts 7 mph11 km/h	89%	39%	0
Sat 1a	Clear	40°4° (likely 39°4° to 44°7°)	40°4°	0%	1 mph2 km/h from E, gusts 5 mph8 km/h	92%	18%	0
Sat 2a	Clear	38°3° (likely 38°3° to 43°6°)	38°3°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	21%	0
Sat 3a	Clear	37°3° (likely 37°3° to 42°6°)	37°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	9%	0
Sat 4a	Clear	36°2° (likely 36°2° to 42°6°)	36°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	11%	0
Sat 5a	Mostly clear	35°2° (likely 35°2° to 41°5°)	35°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	21%	0
Sat 6a	Partly cloudy	35°2° (likely 35°2° to 40°4°)	35°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	21%	0
Sat 7a	Sunny	35°2° (likely 34°1° to 39°4°)	35°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	28%	0
Sat 8a	Sunny	35°2° (likely 34°1° to 39°4°)	35°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	31%	0
Sat 9a	Mostly sunny	40°4° (likely 38°3° to 43°6°)	40°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	85%	21%	1
Sat 10a	Sunny	46°8° (likely 46°8° to 49°9°)	46°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	73%	5%	2
Sat 11a	Sunny	52°11° (likely 52°11° to 54°12°)	52°11°	0%	0 mph0 km/h, gusts 5 mph9 km/h	61%	0%	3
Sat 12p	Sunny	55°13° (likely 55°13° to 57°14°)	55°13°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	55%	0%	4
Sat 1p	Sunny	59°15° (likely 57°14° to 59°15°)	59°15°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	45%	2%	4
Sat 2p	Sunny	60°16° (likely 58°14° to 60°16°)	60°16°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	42%	1%	4
Sat 3p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	41%	1%	3
Sat 4p	Sunny	62°17° (likely 58°14° to 62°17°)	62°17°	0%	2 mph3 km/h from SE, gusts 6 mph9 km/h	39%	2%	2
Sat 5p	Sunny	60°16° (likely 57°14° to 60°16°)	60°16°	0%	2 mph3 km/h from SE, gusts 5 mph9 km/h	42%	2%	1
Sat 6p	Clear	57°14° (likely 54°12° to 57°14°)	57°14°	0%	0 mph0 km/h, gusts 6 mph10 km/h	51%	0%	0
Sat 7p	Clear	53°12° (likely 51°11° to 53°12°)	53°12°	0%	0 mph0 km/h, gusts 7 mph11 km/h	59%	1%	0
Sat 8p	Clear	49°9° (likely 48°9° to 50°10°)	49°9°	0%	0 mph0 km/h, gusts 6 mph9 km/h	68%	0%	0
Sat 9p	Clear	46°8° (likely 46°8° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 4 mph7 km/h	76%	0%	0
Sat 10p	Clear	44°7° (likely 44°7° to 47°8°)	44°7°	0%	0 mph0 km/h, gusts 4 mph6 km/h	79%	0%	0
Sat 11p	Clear	42°6° (likely 42°6° to 45°7°)	42°6°	0%	0 mph0 km/h, gusts 3 mph5 km/h	86%	0%	0
Sun 12a	Clear	41°5° (likely 41°5° to 44°7°)	41°5°	0%	0 mph0 km/h, gusts 3 mph5 km/h	93%	0%	0
Sun 1a	Clear	41°5° (likely 41°5° to 43°6°)	41°5°	0%	0 mph0 km/h, gusts 3 mph4 km/h	93%	0%	0
Sun 2a	Clear	39°4° (likely 39°4° to 42°6°)	39°4°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	1%	0
Sun 3a	Clear	38°3° (likely 38°3° to 42°6°)	38°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	92%	10%	0
Sun 4a	Clear	38°3° (likely 37°3° to 41°5°)	38°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	92%	14%	0
Sun 5a	Clear	37°3° (likely 36°2° to 40°4°)	37°3°	0%	0 mph0 km/h, gusts 2 mph4 km/h	92%	17%	0
Sun 6a	Fog	36°2° (likely 35°2° to 40°4°)	36°2°	0%	0 mph0 km/h, gusts 3 mph4 km/h	92%	17%	0
Sun 7a	Fog	36°2° (likely 34°1° to 39°4°)	36°2°	0%	0 mph0 km/h, gusts 3 mph4 km/h	92%	20%	0
Sun 8a	Fog	37°3° (likely 34°1° to 39°4°)	37°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	22%	0
Sun 9a	Fog	41°5° (likely 37°3° to 44°7°)	41°5°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	20%	1
Sun 10a	Sunny	47°8° (likely 47°8° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	79%	6%	2
Sun 11a	Sunny	53°12° (likely 53°12° to 55°13°)	53°12°	0%	0 mph0 km/h, gusts 4 mph7 km/h	69%	4%	3
Sun 12p	Sunny	57°14° (likely 56°13° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 5 mph8 km/h	57%	4%	4
Sun 1p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	1 mph2 km/h from W, gusts 5 mph8 km/h	48%	4%	4
Sun 2p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	1 mph2 km/h from W, gusts 6 mph9 km/h	44%	4%	4
Sun 3p	Sunny	64°18° (likely 60°16° to 64°18°)	64°18°	0%	1 mph2 km/h from W, gusts 6 mph10 km/h	45%	0%	3
Sun 4p	Sunny	65°18° (likely 60°16° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 6 mph9 km/h	43%	0%	2

Days ahead

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

Today, Oct 23. Sunny. High 62°17°, low 35°2°. Typical 64°18° / 41°5°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Partly cloudy, 48°9°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 35°2°
  Dry
Official NWS forecast
Today: Sunny, with a high near 62. Northeast wind around 3 mph.
Tonight: Areas of frost after 1am. Partly cloudy, with a low around 35. Northeast wind 0 to 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
60°16°–62°17°
Low, likely
35°2°–45°7°
Typical high / low
64°18° / 41°5°
Wind
9 mph14 km/h, gusts 19 mph31 km/h
UV peak
4
Tomorrow, Oct 24. Mostly sunny. High 62°17°, low 36°2°. Typical 63°17° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 35°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  Dry
Official NWS forecast
Day: Widespread frost before 9am. Sunny, with a high near 62. East wind around 2 mph.
Night: Patchy fog between 2am and 3am, then patchy frost and patchy fog. Mostly clear, with a low around 36. Wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–62°17°
Low, likely
34°1°–39°4°
Typical high / low
63°17° / 41°5°
Wind
6 mph10 km/h, gusts 11 mph18 km/h
UV peak
4
Sunday, Oct 25. Fog. High 65°18°, low 38°3°. Typical 63°17° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Fog, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 39°4°
  Dry
Official NWS forecast
Day: Areas of fog and patchy frost before 10am. Sunny, with a high near 65. West wind around 1 mph.
Night: Patchy fog between midnight and 4am. Mostly clear, with a low around 38.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–65°18°
Low, likely
33°1°–39°4°
Typical high / low
63°17° / 40°4°
Wind
4 mph7 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 68°20°, low 45°7°. Typical 63°17° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 68.
Night: Mostly clear, with a low around 45.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
65°18°–68°20°
Low, likely
34°1°–45°7°
Typical high / low
63°17° / 40°4°
Wind
9 mph15 km/h, gusts 14 mph23 km/h
UV peak
4
Tuesday, Oct 27. Partly sunny. High 66°19°, low 42°6°. Typical 62°17° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°11°
  Dry
4. Overnight
  midnight–6 AM
  Partly 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
61°16°–66°19°
Low, likely
42°6°–48°9°
Typical high / low
62°17° / 40°4°
Wind
10 mph16 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 64°18°, low 46°8°. Typical 62°17° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 42°5°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 53°11°
  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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
58°14°–64°18°
Low, likely
40°4°–46°8°
Typical high / low
62°17° / 39°4°
Wind
6 mph10 km/h, gusts 17 mph27 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 69°21°, low 48°9°. Typical 62°17° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  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, 48°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 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
64°18°–70°21°
Low, likely
43°6°–49°9°
Typical high / low
62°17° / 39°4°
Wind
11 mph17 km/h, gusts 24 mph39 km/h
UV peak
4
Friday, Oct 30. Partly sunny. High 68°20°, low 47°8°. Typical 61°16° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–72°22°
Low, likely
44°7°–50°10°
Typical high / low
61°16° / 39°4°
Wind
7 mph11 km/h, gusts 18 mph29 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 65°18°, low 45°7°. Typical 61°16° / 38°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 53°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 45°7°
  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
53°12°–71°22°
Low, likely
39°4°–50°10°
Typical high / low
61°16° / 38°3°
Wind
10 mph16 km/h, gusts 24 mph38 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 63°17°, low 46°8°. Typical 60°16° / 38°3°. Rain 0.03 in0.8 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Fog, 61°16°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 56°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
58°14°–69°21°
Low, likely
39°4°–52°11°
Typical high / low
60°16° / 38°3°
Wind
10 mph15 km/h, gusts 26 mph41 km/h
UV peak
1

10 days15 days30 days

The outlook

Today
Dry, high 62°, low 35°.
Tomorrow
Dry, high 62°, low 36°.
Sunday
Dry, high 65°, low 38°, warming up.
Rest of week
Mostly dry, highs 63–69°.

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

Susquehanna River at Marietta

5.2 mi

Below flood stage

Level: 34.4 ft
Flow: 13,700 cfs

Forecast peak 34.5 ft Fri 8 PM

Reading from Fri 3:30 PM · NWS gauge page

Conestoga River at Lancaster

8.4 mi

Below flood stage

Level: 3.6 ft
Flow: 266 cfs

Forecast peak 3.6 ft Fri 8 PM

Reading from Fri 3:15 PM · NWS gauge page

Chiques Creek above MARIETTA

4.5 mi

Level: 2.9 ft
Flow: 90 cfs

Reading from Fri 3:15 PM · NWS gauge page

Kreutz Creek at Strickler

6.3 mi

Level: 1.7 ft
Flow: 21 cfs

Reading from Fri 3:45 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 36Typical 96

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 28
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 34°F).

Open the windows?

Sat, 2:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

Lancaster 2 NE Filt Plant · official normals 1991–2020 · records 1949–2026

Oct 23, today vs a typical year

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

Last 7 days vs normal

—SatOct 17
—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23

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

Sun & moon

Sun

Daylight: 10 h 50 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 30 min less
Golden hour: 5:37–6:31 PM; Morning 7:07–8:02 AM
Blue hour: 6:31–6:42 PM; Morning 6:57–7:07 AM; first light 6:57 AM

Stars tonight? Fair

Mostly clear 1–6:58 AM, but the moon is 95% lit and up.

Moon

Waxing gibbous

93% lit · growing

Today: sets 4:29 AM · rises 4:45 PM
Full moon: Oct 26
New moon: Nov 9

Looking southwest from Mountville. The highest point on the skyline is about 2,500 ft, 32 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

Freeze Warning