Hollidaysburg, PA Weather

Blair County5:27 AM EDT40.43°N, 78.39°WElevation 948 ft

Current conditions

Clear
37°
Clear
Feels like 35°
High 70°·Low 35° tonight
WindSW 3 mph
Humidity100%
Dew point37°
Pressure30.37 inHg
Visibility10 mi
Cloud cover18%
UV index0 Low
Sunrise7:37 AM
Sunset6:19 PM

Observed at Altoona - Blair County Airport · 52 min ago

Forecast

10-day

  • Tonight

    Patchy fog after 4am. Mostly clear, with a low around 35. Southwest wind around 2 mph.

  • Monday

    Patchy fog before 10am. Sunny, with a high near 70. West wind 0 to 6 mph.

  • Monday Night

    Mostly clear, with a low around 43. West wind around 3 mph.

National Weather Service forecast updated 9 hrs ago.

Hourly

Hourly forecast
  1. Now Patchy Fog 37°
  2. 6 AM Patchy Fog 37°
  3. 7 AM Patchy Fog 38°
  4. 8 AM Patchy Fog 38°
  5. 9 AM Patchy Fog 42°
  6. 10 AM Sunny 52°
  7. 11 AM Sunny 59°
  8. 12 PM Sunny 63°
  9. 1 PM Sunny 67°
  10. 2 PM Sunny 68°
  11. 3 PM Sunny 68°
  12. 4 PM Sunny 69°
  13. 5 PM Sunny 68°
  14. 6 PM Mostly Clear 65°
  15. 7 PM Mostly Clear 60°
  16. 8 PM Mostly Clear 55°
  17. 9 PM Mostly Clear 52°
  18. 10 PM Mostly Clear 51°
  19. 11 PM Mostly Clear 50°
  20. Tue12 AM Mostly Clear 48°
  21. 1 AM Mostly Clear 47°
  22. 2 AM Mostly Clear 47°
  23. 3 AM Mostly Clear 46°
  24. 4 AM Partly Cloudy 45°

10-day forecast

Details
  1. TonightOct 25 Mostly Clear then Patchy Fog Mostly Clear then Patchy Fog35°
  2. TodayOct 26 Patchy Fog then Sunny Patchy Fog then Sunny43°70°
  3. TueOct 27 Mostly Sunny Mostly Sunny40°67°
  4. WedOct 28 Partly Sunny Partly Sunny43°65°
  5. ThuOct 29 Sunny Sunny48°74°
  6. FriOct 30 Sunny Sunny47°75°
  7. SatOct 31 Partly Sunny Partly Sunny51°72°
  8. SunNov 1 Chance Rain Showers Chance Rain Showers42%70°
  9. MonNov 2 Cloudy Cloudy0.05 in52°68°
  10. TueNov 3 Heavy rain Heavy rain0.86 in51°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 in Pennsylvania

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Air quality

38
Good
Fine particles (PM2.5)

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

Forecast

  • MonGood (40)
  • TueGood

Altoona, 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 7:37 AM
Sunset 6:19 PM
Daylight 10 h 42 min (−2 min 27 s tomorrow)
Full Moon · 100% lit
Moonrise 6:11 PM Moonset 8:11 AM
Full moon Nov 24 New moon Nov 9

Almanac

Monthly
Normal high / low59° / 40°
Month to date2.03 in (normal 2.38 in)

Altoona Blair County Ap, records since 1948. 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) Rain-free conditions will persist through the end of October and possibly the first day of November

Discussion

KEY MESSAGE 1: Rain-free conditions will persist through the end of October and possibly the first day of November

An area of high pressure will settle south across the Carolinas and southern Appalachians today, allowing a weak/dry cold front to drift southeast across the District this afternoon and evening. Outside of a few sprinkles across the Northern Mountains later today or early tonight, no measurable rainfall is expected this entire week.

In the wake of the frontal passage, another, larger area of high pressure will build Southeast across the Upper Great Lakes and extend our lengthy string of rainfree conditions through part or all of this upcoming weekend.

Locally dense large stream/river valley fog will occur across central PA and the Susq valley early today, while light wind and/or some mid and high clouds has limited much in the way of fog development (so far) across the Northern Mtns and Laurel Highlands where temp/dewpt spreads are between 1-6 deg F. Will keep the mention of patchy fog for areas outside of the Susq Mainstem and its West Branch Valley.

Moderate variations will occur in daily and nocturnal temperatures as at least one weak, dry cold fronts moves 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 late today/early tonight, 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 tonight.

Aviation

A very strong inversion will result in fog and lower clouds in some of the valleys across east-central PA this morning, with vsby restrictions possible at any of the airfields, but highest chances at IPT, MDT, and LNS. Otherwise, the only clouds expected today are mid-high clouds from a weak trough aloft. Winds will mostly be from the west today at 5-10 kts, and shift more towards the north tonight as a dry cold front moves in. IFR or MVFR cigs are possible across the northern tier and Laurels (30-40 pct chc at BFD and JST) between 00z and 12z Tue.

Outlook...

Tue...MVFR cigs possible in the north and west early, trending VFR.

Wed-Thu...VFR likely.

Fri...MVFR cigs possible mainly in the north and west due to a cold front.

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. How to use Weather