Lancaster, PA 17604 Weather

Lancaster County3:12 AM EDT40.07°N, 76.34°W

Current conditions

Clear
46°
Clear
Feels like 45°
High 64°·Low 41° tonight
WindWNW 3 mph
Humidity71%
Dew point37°
Pressure30.25 inHg
Visibility10 mi
Cloud cover1%
UV index0 Low
Sunrise7:23 AM
Sunset6:18 PM

Observed at Lancaster, Lancaster Airport · 37 min ago

Forecast

10-day

  • Overnight

    Clear, with a low around 41. North wind around 5 mph.

  • Wednesday

    Sunny, with a high near 64. North wind 5 to 8 mph.

  • Wednesday Night

    Mostly clear, with a low around 40. Northwest wind around 7 mph.

National Weather Service forecast updated 21 min ago.

Hourly

Hourly forecast
  1. Now Clear 45°
  2. 4 AM Clear 44°
  3. 5 AM Clear 43°
  4. 6 AM Sunny 42°
  5. 7 AM Sunny 41°
  6. 8 AM Sunny 41°
  7. 9 AM Sunny 45°
  8. 10 AM Sunny 50°
  9. 11 AM Sunny 55°
  10. 12 PM Sunny 57°
  11. 1 PM Sunny 61°
  12. 2 PM Sunny 62°
  13. 3 PM Sunny 63°
  14. 4 PM Sunny 64°
  15. 5 PM Sunny 63°
  16. 6 PM Mostly Clear 61°
  17. 7 PM Mostly Clear 57°
  18. 8 PM Mostly Clear 52°
  19. 9 PM Mostly Clear 51°
  20. 10 PM Mostly Clear 49°
  21. 11 PM Mostly Clear 47°
  22. Thu12 AM Mostly Clear 46°
  23. 1 AM Partly Cloudy 45°
  24. 2 AM Partly Cloudy 44°

10-day forecast

Details
  1. TonightOct 20 Clear Clear41°
  2. TodayOct 21 Sunny Sunny40°64°
  3. ThuOct 22 Sunny Sunny40°65°
  4. FriOct 23 Sunny Sunny35°60°
  5. SatOct 24 Patchy Frost then Sunny Patchy Frost then Sunny36°61°
  6. SunOct 25 Sunny Sunny41°65°
  7. MonOct 26 Sunny Sunny46°68°
  8. TueOct 27 Mostly Sunny Mostly Sunny65°
  9. WedOct 28 Cloudy Cloudy49°60°
  10. ThuOct 29 Sunny Sunny40°55°

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

Radar

Full map
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Weather news near Lancaster

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Air quality

62
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Forecast

  • WedGood (45)
  • ThuGood (45)
  • FriGood

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 7:23 AM
Sunset 6:18 PM
Daylight 10 h 55 min (−2 min 29 s tomorrow)
Waxing Gibbous · 75% lit
Moonrise 3:56 PM Moonset 2:23 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Record high80° (2016)
Record low33° (2022)
Wettest0.45 in (2005)

Lancaster Airport, records since 1999. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in CTP, issued 30 min ago

What Has Changed

* No significant changes

Key Messages

1) Dry and seasonable weather continues into the last week of October

Discussion

KEY MESSAGE 1: Dry and seasonable weather continues into the last week of October

The seasonably sensational stretch weather continues into the last week of October. This rain-free pattern is highlighted by sunny and warm afternoons with low humidity followed by clear and chilly moonlit nights with areas of frost and river valley fog. Afternoon dewpoints were adjusted lower into late week to capture the observed mixing trends that have occurred over the past few days. Minimum temps were also reduced by a few degrees to account for ideal nighttime radiational cooling.

Aviation

High pressure and very dry air are allowing for continued dry conditions and clear skies across the majority of the forecast area this morning. VFR conditions are virtually certain through 06Z Thursday at all of central Pennsylvania's airfields. The only hiccup in that forecast will be where HREF ensemble guidance (which has shown fair skill in honing in where fog will form the past couple of days) continues to outline northern tier for some chances of fog formation across NW PA over the next couple of hours, which will bring some chances for lower flight categories (IFR and below) to BFD in the 06-12Z Wednesday timeframe. Confidence remains too low (~20-30%) for inclusion in the 06Z TAF package, but will remain a lower- probability solution.

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.