Mechanicsburg, PA 17055 Weather

Cumberland County12:57 AM EDT40.18°N, 77.00°W

Current conditions

Patchy Frost
36°
Patchy Frost
Feels like 36°
High 64°·Low 31° tonight
WindCalm
Humidity96%
Dew point35°
Cloud cover2%
UV index0 Low
Sunrise7:30 AM
Sunset6:16 PM

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

Forecast

10-day

  • Saturday Night

    Patchy frost between midnight and 1am, then areas of frost and patchy fog. Clear, with a low around 31. Wind around 0 mph.

  • Sunday

    Areas of frost and patchy fog before 9am. Sunny, with a high near 64. North wind around 1 mph.

  • Sunday Night

    Mostly clear, with a low around 33.

National Weather Service forecast updated 1 day ago.

Hourly

Hourly forecast
  1. Now Patchy Frost 36°
  2. 1 AM Patchy Frost 35°
  3. 2 AM Patchy Frost 35°
  4. 3 AM Patchy Frost 34°
  5. 4 AM Areas Of Frost 34°
  6. 5 AM Areas Of Frost 34°
  7. 6 AM Areas Of Frost 32°
  8. 7 AM Areas Of Frost 31°
  9. 8 AM Areas Of Frost 33°
  10. 9 AM Sunny 38°
  11. 10 AM Sunny 45°
  12. 11 AM Sunny 52°
  13. 12 PM Sunny 56°
  14. 1 PM Sunny 60°
  15. 2 PM Sunny 61°
  16. 3 PM Sunny 63°
  17. 4 PM Sunny 64°
  18. 5 PM Sunny 62°
  19. 6 PM Clear 58°
  20. 7 PM Clear 52°
  21. 8 PM Clear 47°
  22. 9 PM Clear 43°
  23. 10 PM Mostly Clear 41°
  24. 11 PM Mostly Clear 39°

Daily forecast

Details
  1. FriOct 23 Sunny Sunny32°62°
  2. SatOct 24 Widespread Frost then Sunny Widespread Frost then Sunny31°61°
  3. TodayOct 25 Areas Of Frost then Sunny Areas Of Frost then Sunny33°64°
  4. MonOct 26 Sunny Sunny44°69°
  5. TueOct 27 Sunny Sunny40°63°
  6. WedOct 28 Partly Sunny Partly Sunny42°61°
  7. ThuOct 29 Partly Sunny Partly Sunny44°66°
  8. FriOct 30 Partly cloudy Partly cloudy47°72°
  9. SatOct 31 Partly cloudy Partly cloudy42°60°

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 in Pennsylvania

More weather news

Air quality

112
Unhealthy for Sensitive Groups
Fine particles (PM2.5)

People with heart or lung disease, older adults, children and teenagers should reduce prolonged or heavy exertion outdoors.

Forecast

  • SunModerate (75)
  • MonModerate (53)
  • TueGood

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 7:30 AM
Sunset 6:16 PM
Daylight 10 h 45 min (−2 min 26 s tomorrow)
Waxing Gibbous · 99% lit
Moonrise 5:35 PM Moonset 6:52 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low62° / 42°
Month to date3.23 in (normal 3.06 in)

Middletown-Harrisburg Area, records since 1888. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in CTP, issued 5 hrs ago

What Has Changed

* No significant changes

Key Messages

1) Dry forecast holds for the next 6-7 days

Discussion

KEY MESSAGE 1: Dry forecast holds for the next 6-7 days

We don't see any new evidence in our suite of model guidance to deviate away from our existing rain-free forecast.

A large high pressure system at the surface, along with a ridge axis aloft, will keep the Commonwealth rain-free through the early part of the upcoming work week. We do expect a cold front to drop southward across the region Monday night into early Tuesday, but with only shallow moisture levels to work with, just some patchy cloudiness and no rainfall are the expectations.

After a brief shot of seasonably cool air Tuesday into Wednesday, a warming trend is likely later in the week, along with continued rain-free conditions. At least southern portions of the Commonwealth should pop back into the 70s as we approach next weekend.

Aviation

High pressure over the area will result in clear skies and light winds tonight into Sunday and well into the upcoming week.

Under a strong inversion, there could be an isolated thin layer of haze and fog late at any location, as was the case just before sunrise at AOO this morning. For now, will leave fog out of the fcst for most of the TAF sites.

More info. below.

Will hold onto low clouds and fog at IPT, as this site has a higher chance for this type of condition (60 perent).

Some hints of return of Atlantic moisture around 9H into the southern tier tonight, and could make SCT- BKN clouds (MVFR/FL020-030) along and S of the MD border. But, the chcs are even lower that they (if they form) would impact any of our terminals. We did mention MVFR- level SCT clouds (not cigs) at JST and AOO.

Outlook...

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.