Canonsburg, PA Weather

Washington County5:53 PM EDT40.26°N, 80.19°WElevation 1,096 ft

Current conditions

Clear
66°
Clear
Feels like 66°
High 67°·Low 41°
WindCalm
Humidity43%
Dew point43°
Pressure30.46 inHg
Visibility10 mi
Cloud cover19%
Sunrise7:43 AM
Sunset6:28 PM

Observed at Washington County Airport · 48 min ago

Forecast

10-day

  • Sunday

    Sunny, with a high near 67.

  • Sunday Night

    Partly cloudy, with a low around 41.

  • Monday

    Mostly sunny, with a high near 68.

National Weather Service forecast updated 4 days ago.

Hourly

Hourly forecast
  1. Now Sunny 66°
  2. 6 PM Mostly Clear 63°
  3. 7 PM Mostly Clear 59°
  4. 8 PM Partly Cloudy 55°
  5. 9 PM Partly Cloudy 52°
  6. 10 PM Partly Cloudy 49°
  7. 11 PM Partly Cloudy 47°
  8. Mon12 AM Partly Cloudy 46°
  9. 1 AM Partly Cloudy 46°
  10. 2 AM Partly Cloudy 45°
  11. 3 AM Partly Cloudy 44°
  12. 4 AM Partly Cloudy 44°
  13. 5 AM Partly Cloudy 43°
  14. 6 AM Mostly Sunny 42°
  15. 7 AM Mostly Sunny 41°
  16. 8 AM Mostly Sunny 42°
  17. 9 AM Mostly Sunny 46°
  18. 10 AM Mostly Sunny 51°
  19. 11 AM Mostly Sunny 56°
  20. 12 PM Mostly Sunny 60°
  21. 1 PM Mostly Sunny 63°
  22. 2 PM Mostly Sunny 65°
  23. 3 PM Mostly Sunny 67°
  24. 4 PM Mostly Sunny 67°

10-day forecast

Details
  1. TonightOct 20 Mostly Clear then Patchy Fog Mostly Clear then Patchy Fog37°
  2. WedOct 21 Patchy Fog then Sunny Patchy Fog then Sunny36°67°
  3. ThuOct 22 Patchy Fog then Mostly Sunny Patchy Fog then Mostly Sunny42°63°
  4. FriOct 23 Sunny Sunny33°63°
  5. SatOct 24 Sunny Sunny36°64°
  6. TodayOct 25 Sunny Sunny41°67°
  7. MonOct 26 Mostly Sunny Mostly Sunny45°68°
  8. TueOct 27 Partly Sunny Partly Sunny60°
  9. WedOct 28 Rain Rain0.15 in39°51°
  10. ThuOct 29 Mostly sunny Mostly sunny34°52°

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 Canonsburg

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Air quality

49
Good
Fine particles (PM2.5)

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

Forecast

  • SunModerate (75)
  • MonModerate (70)
  • TueModerate

Mon Valley Area, 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 7:43 AM
Sunset 6:28 PM
Daylight 10 h 45 min (−2 min 27 s tomorrow)
Full Moon · 100% lit
Moonrise 5:48 PM Moonset 7:05 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low60° / 42°
Record high82° (2012)
Record low29° (1937)
Wettest1.14 in (2005)
Yesterday63° / 42°
Month to date3.99 in (normal 2.39 in)

Pittsburgh Allegheny County Ap, records since 1935. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

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

What Has Changed

No changes to the forecast package or messaging.

Key Messages

1) High confidence in continued dry weather and above-noraml temperatures through the work week. Rain chances may finally return next weekend.

Discussion

KEY MESSAGE 1... New day, same message. High pressure remains in control, with dry weather highly likely through Saturday. The passage of a 500mb ridge axis will provide a small boost to already above- normal temperatures on Monday.

A dry frontal passage Monday night will provide some clouds and a minor temperature bump downward, but not enough moisture for precipitation chances. That boundary then returns north as a warm front through midweek, which will eventually push temperatures some 10 to 15 degrees above normal by Thursday. A shortwave crossing the Great Lakes Thursday night/Friday appears to still remain too far north for precipitation chances; a cloud increase is expected north of Pittsburgh.

There is still a decent model signal for an Ohio Valley shortwave next weekend that may finally break the dry spell on Sunday. The various ensemble members still show strength and timing differences, so rainfall could get pushed later once again, but a wetter post-Halloween pattern is certainly possible.

Aviation

VFR through the TAF period save for low probability river valley fog resulting in MVFR to LIFR visibility Monday morning (11z-13z). Wind remains light (with some speed increase Monday afternoon out of the W/SW) with passing cirrus later this evening into tomorrow.

Outlook... High pressure ensures VFR and dry weather through at least Thursday with rising temperature and increasing cirrus reducing morning river valley fog risk.

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