Lewisburg, PA 17837 Weather

Union County12:27 PM EDT40.97°N, 76.91°W

Current conditions

Clear
55°
Clear
Feels like 55°
High 61°·Low 31°
WindNE 6 mph
Humidity58%
Dew point41°
Pressure30.38 inHg
Visibility10 mi
Cloud cover3%
UV index3 Moderate
Sunrise7:28 AM
Sunset6:17 PM

Observed at Selinsgrove Penn Valley Airport · 1 hr ago

Forecast

10-day

  • Friday

    Sunny, with a high near 61. Northeast wind 0 to 3 mph.

  • Friday Night

    Widespread frost between 1am and 5am, then widespread frost and patchy fog. Mostly clear, with a low around 31. Wind around 0 mph.

  • Saturday

    Widespread frost and patchy fog before 10am. Sunny, with a high near 62. South wind around 1 mph.

National Weather Service forecast updated 16 hrs ago.

Hourly

Hourly forecast
  1. Now Sunny 54°
  2. 1 PM Sunny 57°
  3. 2 PM Sunny 59°
  4. 3 PM Sunny 61°
  5. 4 PM Sunny 61°
  6. 5 PM Mostly Sunny 61°
  7. 6 PM Partly Cloudy 58°
  8. 7 PM Partly Cloudy 55°
  9. 8 PM Partly Cloudy 50°
  10. 9 PM Partly Cloudy 47°
  11. 10 PM Mostly Clear 44°
  12. 11 PM Mostly Clear 41°
  13. Sat12 AM Mostly Clear 38°
  14. 1 AM Areas Of Frost 37°
  15. 2 AM Areas Of Frost 35°
  16. 3 AM Widespread Frost 33°
  17. 4 AM Widespread Frost 32°
  18. 5 AM Widespread Frost 31°
  19. 6 AM Widespread Frost 31°
  20. 7 AM Widespread Frost 31°
  21. 8 AM Widespread Frost 32°
  22. 9 AM Areas Of Frost 37°
  23. 10 AM Sunny 42°
  24. 11 AM Sunny 48°

10-day forecast

Details
  1. TonightOct 22 Mostly Clear Mostly Clear39°
  2. TodayOct 23 Sunny Sunny31°61°
  3. SatOct 24 Widespread Frost then Sunny Widespread Frost then Sunny32°62°
  4. SunOct 25 Widespread Frost then Sunny Widespread Frost then Sunny36°64°
  5. MonOct 26 Sunny Sunny43°69°
  6. TueOct 27 Mostly Sunny Mostly Sunny37°64°
  7. WedOct 28 Partly Sunny Partly Sunny42°61°
  8. ThuOct 29 Mostly Cloudy Mostly Cloudy64°
  9. FriOct 30 Partly cloudy Partly cloudy46°69°
  10. SatOct 31 Sunny Sunny39°57°

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 Lewisburg

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Air quality

36
Good
Fine particles (PM2.5)

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

Forecast

  • FriGood (30)
  • SatGood (30)
  • SunGood

Williamsport, 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 7:28 AM
Sunset 6:17 PM
Daylight 10 h 48 min (−2 min 33 s tomorrow)
Waxing Gibbous · 92% lit
Moonrise 4:44 PM Moonset 4:35 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low60° / 40°
Record high84° (1947)
Record low22° (1944)
Wettest2.69 in (1929)
Month to date1.71 in (normal 2.72 in)

Williamsport Area, records since 1895. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in CTP, issued 8 hrs ago

What Has Changed

* Freeze Watch continues for Friday night for Lancaster and Lebanon Counties. * Adjustments to near-term temperatures due to cloud cover across the northern tier.

Key Messages

1) Dry weather continues into the last week of October.

Discussion

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

A dry cold front will push south of the Mason-Dixon Line early today. In the wake of the cfront, a brief, several-hour uptick in north to northeasterly wind will occur across the Susq Valley and points east during the mid to late morning hours today.

PWAT values will once again decrease to 0.25 of an inch or less for the midday and afternoon hours today as sfc high pressure builds into the region with a pronounced upper level ridge developing 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 late tonight and early Sat are 50 percent or less for Lancaster and Lebanon Counties (the only zones where the growing season remains active).

NAM and GFS MOS guidance have shown a slight increase to 33-36F in both of those counties. This trend (albeit with still very favorable set up for efficient radiational cooling), has led us to hold onto (for another model cycle) the Freeze Watch for tonight/Saturday morning.

Widespread frost appears likely acrs much of these 2 counties (and elsewhere across the rest of the CWA), but there is still some question if we'll see many sub-freezing min temps in the current Watch area.

Aviation

Mainly VFR conditions due to high pressure and dry weather will continue into this weekend. Outside of patchy valley fog in the north and brief MVFR cigs possible early this morning (mainly BFD), there are very low probabilities of reductions to flight categories. Wind gusts of 15-20 kts will remain possible across the southeast today in N to NE flow, with lighter winds towards the northwest, closer to the center of the high.

Sat-Tue...VFR prevailing conditions.

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 4Conservative index and reflects what the press published. Terms of use.