Harrisburg, PA 17120 Weather

Dauphin County10:32 PM EDT40.27°N, 76.88°W

Current conditions

Mostly Clear
44°
Mostly Clear
Feels like 44°
High 61° Saturday·Low 35° tonight
WindE 1 mph
Humidity86%
Dew point40°
Cloud cover20%
UV index0 Low
Sunrise7:27 AM
Sunset6:18 PM

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

Forecast

10-day

  • Friday Night

    Patchy frost after 3am. Mostly clear, with a low around 35. East wind 0 to 3 mph.

  • Saturday

    Areas of frost before 9am. Sunny, with a high near 61. Southeast wind around 1 mph.

  • Saturday Night

    Clear, with a low around 34. Wind around 0 mph.

National Weather Service forecast updated 18 hrs ago.

Hourly

Hourly forecast
  1. Now Mostly Clear 44°
  2. 11 PM Mostly Clear 42°
  3. Sat12 AM Mostly Clear 40°
  4. 1 AM Mostly Clear 39°
  5. 2 AM Mostly Clear 38°
  6. 3 AM Patchy Frost 38°
  7. 4 AM Patchy Frost 38°
  8. 5 AM Patchy Frost 37°
  9. 6 AM Patchy Frost 37°
  10. 7 AM Areas Of Frost 37°
  11. 8 AM Patchy Frost 36°
  12. 9 AM Sunny 41°
  13. 10 AM Sunny 48°
  14. 11 AM Sunny 53°
  15. 12 PM Sunny 56°
  16. 1 PM Sunny 58°
  17. 2 PM Sunny 60°
  18. 3 PM Sunny 61°
  19. 4 PM Sunny 61°
  20. 5 PM Sunny 60°
  21. 6 PM Clear 58°
  22. 7 PM Clear 54°
  23. 8 PM Clear 47°
  24. 9 PM Clear 45°

10-day forecast

Details
  1. TonightOct 22 Clear Clear43°
  2. TodayOct 23 Sunny Sunny35°62°
  3. SatOct 24 Areas Of Frost then Sunny Areas Of Frost then Sunny34°61°
  4. SunOct 25 Patchy Frost then Sunny Patchy Frost then Sunny36°65°
  5. MonOct 26 Sunny Sunny45°69°
  6. TueOct 27 Sunny Sunny41°64°
  7. WedOct 28 Partly Sunny Partly Sunny44°61°
  8. ThuOct 29 Partly Sunny Partly Sunny66°
  9. FriOct 30 Partly cloudy Partly cloudy48°71°
  10. SatOct 31 Partly cloudy Partly cloudy43°58°

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 Harrisburg

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Air quality

66
Moderate
Fine particles (PM2.5)

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

Forecast

  • FriModerate (51)
  • SatModerate (60)
  • SunModerate (75)

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 7:27 AM
Sunset 6:18 PM
Daylight 10 h 50 min (−2 min 29 s tomorrow)
Waxing Gibbous · 95% lit
Moonrise 4:44 PM Moonset 4:35 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low63° / 43°
Record high86° (1947)
Record low29° (1982)
Wettest1.86 in (1990)
Yesterday67° / 43°
Month to date3.23 in (normal 2.82 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 3 hrs ago

What Has Changed

* Freeze Warning issued for Lancaster and Lebanon Counties. * Downward adjustments to dewpoints next three days.

Key Messages

1) Dry forecast holds for the next 5-6 days

Discussion

KEY MESSAGE 1: Dry forecast holds for next 5-6 days

Freeze seems likely enough to post yet another freeze warning for the two counties not yet out of the growing season. While the urban places may stay above freezing, the light wind and few clouds will help the rural areas to get down to 32F. Guidance does keep the values up more 32-34F for most places, but the wind should be gone, and they just need an hour to drop enough to warrant the freeze warning for >50% of each county.

The high pressure making the light/nil wind and mainly clear sky possible will silently hold onto the region for many more days. A front, starved of moisture, will approach from the Upper Great Lakes Mon night-Tues, but PoPs are hardly worth having as PWATs stay very low before the arrival of the baroclinic zone. A new airmass, just as dry as this one then moves in from the NW and continues the dry forecast. Per almost every model/member/wooly worm I could find, the next chance for rain comes on/near Halloween.

Aviation

Looking at VFR conditions to prevail overnight and into the weekend, as high pressure remains over the region.

The airmass is very dry, thus less chance of low clouds and fog than last night.

Winds will be on the light side as well.

This weather pattern likely to last at least into mid week.

Sun-Wed...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.