Lewisburg, PA Weather

Union County4:31 PM EDT40.96°N, 76.88°WElevation 472 ft

Current conditions

Clear
61°
Clear
Feels like 61°
High 64°·Low 36°
WindSSE 7 mph
Humidity48%
Dew point41°
Pressure30.51 inHg
Visibility10 mi
Cloud cover2%
Sunrise7:31 AM
Sunset6:14 PM

Observed at Selinsgrove Penn Valley Airport · 1 hr ago

Forecast

10-day

  • Sunday

    Widespread frost before 7am, then widespread frost and patchy fog between 7am and 10am. Sunny, with a high near 64.

  • Sunday Night

    Clear, with a low around 36.

  • Monday

    Sunny, with a high near 69.

National Weather Service forecast updated 3 days ago.

Hourly

Hourly forecast
  1. Now Sunny 64°
  2. 5 PM Sunny 63°
  3. 6 PM Clear 59°
  4. 7 PM Clear 53°
  5. 8 PM Clear 52°
  6. 9 PM Clear 49°
  7. 10 PM Clear 46°
  8. 11 PM Clear 43°
  9. Mon12 AM Clear 41°
  10. 1 AM Clear 40°
  11. 2 AM Mostly Clear 39°
  12. 3 AM Mostly Clear 38°
  13. 4 AM Mostly Clear 37°
  14. 5 AM Mostly Clear 37°
  15. 6 AM Sunny 36°
  16. 7 AM Sunny 36°
  17. 8 AM Sunny 37°
  18. 9 AM Sunny 41°
  19. 10 AM Sunny 47°
  20. 11 AM Sunny 53°
  21. 12 PM Sunny 58°
  22. 1 PM Sunny 63°
  23. 2 PM Sunny 66°
  24. 3 PM Sunny 68°

10-day forecast

Details
  1. ThuOct 22 Sunny Sunny39°63°
  2. FriOct 23 Sunny Sunny31°61°
  3. SatOct 24 Widespread Frost then Sunny Widespread Frost then Sunny32°62°
  4. TodayOct 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°62°
  8. ThuOct 29 Partly cloudy Partly cloudy0.04 in44°64°
  9. FriOct 30 Sunny Sunny38°55°
  10. SatOct 31 Sunny Sunny34°54°

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 Lewisburg

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Air quality

31
Good
Ozone

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

Forecast

  • SunGood (40)
  • MonGood (40)
  • TueGood

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 7:31 AM
Sunset 6:14 PM
Daylight 10 h 43 min (−2 min 31 s tomorrow)
Full Moon · 100% lit
Moonrise 5:33 PM Moonset 6:53 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low60° / 40°
Record high77° (1963)
Record low23° (1937)
Wettest2.49 in (1980)
Yesterday61° / 31°
Month to date1.71 in (normal 2.94 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 1 hr ago

What Has Changed

* No significant changes

Key Messages

1) Rain-free conditions will persist through the end of October

Discussion

KEY MESSAGE 1: Rain-free conditions will persist through the end of October

A large area of high pressure will remain in place over the Northeast U.S. and Central Appalachians. Expect mainly clear skies and rain-free conditions right through the upcoming week.

Fog is a tough call for tonight. HREF and REFS probabilities are highest around LNS and over the NW mtns. However, clouds moving in from the NW could keep the NW from getting too foggy. The best bets are the same places as have been the last few nights (W Br Susq and Susq above Harrisburg, and Lake Raystown). Have mentioned patchy fog in many places due to the uncertainty, but kept dense fog mention to IPT/LNS.

Moderate variations will occur in daily and nocturnal temperatures as at least one weak, dry cold fronts move SE across the Commonwealth during the upcoming 5-6 days. Wind direction/speed and cloud cover will also show some minor day- day variations.

The first of the aforementioned dry cold fronts will slip SE across the CWA Monday night into early Tuesday, but with only limited moisture to work with, just some periods of BKN, shallow strato cu and cirrus will occur with no rainfall expected beyond a few sprinkles over the Northern Mtns Monday night. Have kept the PoPs below mentionable for now on Mon night. This front seems like it may slide in before it makes low clouds in the nrn tier.

After a brief shot of seasonably cool air Tuesday and Wed (directed mainly at the NE half of the state), a late week/Saturday rebound in temps (to well above normal values in the low-mid 60s across the Mtns and upper 60s to mid 70s in the Central and Southern Valleys) will follow. A second, weak frontal boundary could brush by across the Northern tier counties Friday afternoon and night. New Day8 is wet (40-60 PoPs) as the pattern shifts to a more-zonal flow for the east. GFS is still dry, though. Models/members are not in as good of agreement from then onward.

Aviation

High pressure over the area will result in clear skies and light winds today into Sunday and predominantly VFR conditions well into the upcoming week. Extent of fog formation Monday morning is still uncertain, but calm winds and plentiful radiational cooling should aid in patchy fog formation across PA. The greatest chances for this are at IPT, MDT, and LNS looking at 12Z model guidance. LNS was focused in on the strongest for IFR visibility by model guidance so trends will be watched. Winds will be out of the west-northwest tomorrow with VFR conditions prevailing.

Outlook...

Mon-Fri...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 4Search index and reflects what the press published. Terms of use. How to use Weather