Lancaster, PA Weather

Lancaster County5:58 PM EDT40.04°N, 76.31°WElevation 361 ft
Freeze Watch from 12:00 AM Sat until 9:00 AM Sat

Current conditions

Sunny
65°
Sunny
Feels like 65°
High 65°·Low 41°
WindNW 9 mph gusts 18 mph
Humidity37%
Dew point38°
Cloud cover2%
UV index0 Low
Sunrise7:24 AM
Sunset6:17 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • This Afternoon

    Sunny, with a high near 65. Northwest wind around 10 mph.

  • Tonight

    Clear, with a low around 41. North wind around 7 mph.

  • Friday

    Sunny, with a high near 62. Northeast wind 3 to 7 mph.

National Weather Service forecast updated 3 hrs ago.

Hourly

Hourly forecast
  1. Now Sunny 65°
  2. 6 PM Clear 61°
  3. 7 PM Clear 59°
  4. 8 PM Clear 56°
  5. 9 PM Clear 54°
  6. 10 PM Clear 52°
  7. 11 PM Clear 51°
  8. Fri12 AM Mostly Clear 49°
  9. 1 AM Mostly Clear 47°
  10. 2 AM Mostly Clear 45°
  11. 3 AM Mostly Clear 44°
  12. 4 AM Mostly Clear 42°
  13. 5 AM Mostly Clear 41°
  14. 6 AM Sunny 40°
  15. 7 AM Sunny 40°
  16. 8 AM Sunny 40°
  17. 9 AM Sunny 44°
  18. 10 AM Sunny 49°
  19. 11 AM Sunny 54°
  20. 12 PM Sunny 57°
  21. 1 PM Sunny 59°
  22. 2 PM Sunny 60°
  23. 3 PM Sunny 61°
  24. 4 PM Sunny 63°

10-day forecast

Details
  1. TodayOct 22 Sunny Sunny41°65°
  2. FriOct 23 Sunny Sunny34°62°
  3. SatOct 24 Widespread Frost then Sunny Widespread Frost then Sunny37°63°
  4. SunOct 25 Patchy Frost then Sunny Patchy Frost then Sunny40°65°
  5. MonOct 26 Sunny Sunny46°69°
  6. TueOct 27 Sunny Sunny43°66°
  7. WedOct 28 Partly Sunny Partly Sunny46°63°
  8. ThuOct 29 Cloudy Cloudy46°67°
  9. FriOct 30 Sunny Sunny41°58°
  10. SatOct 31 Partly cloudy Partly cloudy38°57°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

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Weather news near Lancaster

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Air quality

31
Good
Ozone

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • ThuGood (45)
  • FriModerate (51)
  • SatModerate (55)

Susquehanna Valley, PA reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:24 AM
Sunset 6:17 PM
Daylight 10 h 53 min (−2 min 28 s tomorrow)
Waxing Gibbous · 88% lit
Moonrise 4:19 PM Moonset 3:27 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low62° / 46°
Record high76° (2007)
Record low38° (2002)
Wettest0.87 in (1995)
Yesterday69° / 46°
Month to date3.52 in (normal 3.05 in)

Safe Harbor Dam, records since 1995. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in CTP, issued 3 hrs ago

What Has Changed

* Freeze Watch issued for Friday night for Lancaster and Lebanon Counties.

Key Messages

1) Dry weather continues into the end of October.

Discussion

KEY MESSAGE 1: Dry weather continues into the end of October.

A dry cold frontal passage this evening into tonight will barely be noticeable other than an increase in cloud cover along and behind the front. High pressure builds into the region again behind the front for tomorrow as a pronounced ridge develops over the eastern US. This will keep dry conditions around through at least the beginning of next week with seasonably warm days and chilly nights.

HREF probs of temperatures falling below freezing Friday night are around 50 percent for Lancaster and Lebanon Counties (the only zones where the growing season remains active). This is supported by the NAM MOS guidance which shows temperatures right around 32 in both of those counties. This information, combined with the very favorable set up for efficient radiational cooling, has given us enough confidence to issue a Freeze Watch for Friday night/Saturday morning.

Aviation

Outside of early morning river valley fog and areas of frost, expect solid VFR flying conditions for the vast majority of the time through the weekend and into next week.

A dry cold front will push south across PA later this afternoon and evening and bring an increase in the NNW wind with some minor gustiness into the teens (Central and West) and low 20s (KTS) across the Susq Valley and points East.

Later this evening and through the overnight hours, a SCT-BKN deck of post-frontal stratocumulus will overspread much of central Pennsylvania, with fewer clouds expected over the Lower Susquehanna Valley (KMDT/KLNS) as drier low-level air filters in overnight. The Northern Tier (KBFD) is moderately likely (40-50% chance) to see periods of MVFR ceilings through the night, with lower chances (mainly 15-25%) across the Laurels and central mountains (KJST/KAOO/KUNV/KIPT). Although this cloud deck may linger through the morning and bring intermittent MVFR ceilings over the southwestern airfields (KJST/KAOO) as the area of low-level moisture progresses southwestward, a return to prevailing VFR is otherwise favored.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.