Altoona, PA Weather

Blair County10:51 PM EDT40.52°N, 78.39°WElevation 1,165 ft

Current conditions

Clear
46°
Clear
Feels like 45°
High 69° Monday·Low 36° tonight
WindS 3 mph
Humidity76%
Dew point39°
Pressure30.42 inHg
Visibility10 mi
Cloud cover8%
UV index0 Low
Sunrise7:36 AM
Sunset6:21 PM

Observed at Altoona - Blair County Airport · 31 min ago

Forecast

10-day

  • Tonight

    Areas of fog after 4am. Mostly clear, with a low around 36. South wind around 2 mph.

  • Monday

    Areas of fog before 9am. Sunny, with a high near 69. Southwest wind 2 to 6 mph.

  • Monday Night

    Mostly clear, with a low around 43. Northwest wind around 5 mph.

National Weather Service forecast updated 10 hrs ago.

Hourly

Hourly forecast
  1. Now Mostly Clear 44°
  2. 11 PM Mostly Clear 42°
  3. Mon12 AM Mostly Clear 41°
  4. 1 AM Mostly Clear 41°
  5. 2 AM Mostly Clear 39°
  6. 3 AM Mostly Clear 39°
  7. 4 AM Areas Of Fog 38°
  8. 5 AM Areas Of Fog 38°
  9. 6 AM Areas Of Fog 37°
  10. 7 AM Areas Of Fog 36°
  11. 8 AM Areas Of Fog 38°
  12. 9 AM Sunny 43°
  13. 10 AM Sunny 52°
  14. 11 AM Sunny 58°
  15. 12 PM Sunny 62°
  16. 1 PM Sunny 66°
  17. 2 PM Sunny 67°
  18. 3 PM Sunny 67°
  19. 4 PM Sunny 68°
  20. 5 PM Sunny 67°
  21. 6 PM Mostly Clear 64°
  22. 7 PM Mostly Clear 59°
  23. 8 PM Mostly Clear 54°
  24. 9 PM Mostly Clear 52°

10-day forecast

Details
  1. TodayOct 25 Sunny Sunny36°64°
  2. MonOct 26 Areas Of Fog then Sunny Areas Of Fog then Sunny43°69°
  3. TueOct 27 Mostly Sunny Mostly Sunny38°66°
  4. WedOct 28 Patchy Frost then Partly Sunny Patchy Frost then Partly Sunny42°63°
  5. ThuOct 29 Mostly Sunny Mostly Sunny47°72°
  6. FriOct 30 Sunny Sunny46°73°
  7. SatOct 31 Partly Sunny Partly Sunny13%49°71°
  8. SunNov 1 Heavy rain Heavy rain1.22 in52°59°
  9. MonNov 2 Rain Rain0.27 in39°60°
  10. TueNov 3 Cloudy Cloudy35°48°

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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Air quality

33
Good
Fine particles (PM2.5)

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

Forecast

  • SunGood (45)
  • 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 7:36 AM
Sunset 6:21 PM
Daylight 10 h 44 min (−2 min 29 s tomorrow)
Full Moon · 100% lit
Moonrise 5:40 PM Moonset 6:59 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low59° / 40°
Record high80° (2023)
Record low26° (1962)
Wettest2.08 in (1971)
Yesterday59° / 33°
Month to date2.03 in (normal 2.28 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 4 hrs 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

Bright moonlight skies and light winds will prevail overnight, as high pressure remains over the area. A few high clouds, mainly at BFD.

As was the case last night, a very strong inversion could result in some fog and lower clouds late, even with the very dry air. Overall I did not change much from the 18Z TAF package for overnight.

More detail below.

The greatest chances for fog and lower CIGS are at IPT, MDT, and LNS, given weaker flow down there, closer to the high center.

Outlook...

Mon-Fri...VFR prevailing conditions.

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