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Canonsburg, PA 15317 Weather
Current conditions
Observed at Washington County Airport · 58 min ago
Forecast
10-day-
Tonight
Mostly clear, with a low around 40. North wind 1 to 5 mph.
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Friday
Mostly sunny, with a high near 62. Northeast wind 1 to 6 mph.
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Friday Night
Clear, with a low around 37. East wind around 5 mph.
National Weather Service forecast updated 15 hrs ago.
Hourly
Hourly forecast- Now41°
- 6 AM41°
- 7 AM41°
- 8 AM41°
- 9 AM43°
- 10 AM48°
- 11 AM53°
- 12 PM57°
- 1 PM60°
- 2 PM61°
- 3 PM62°
- 4 PM62°
- 5 PM62°
- 6 PM59°
- 7 PM55°
- 8 PM49°
- 9 PM46°
- 10 PM44°
- 11 PM45°
- Sat12 AM43°
- 1 AM42°
- 2 AM42°
- 3 AM39°
- 4 AM38°
10-day forecast
Details- ThuOct 22Sunny40°64°
- TodayOct 23Mostly Sunny37°62°
- SatOct 24Patchy Frost then Sunny35°65°
- SunOct 25Patchy Frost then Sunny38°66°
- MonOct 26Sunny43°68°
- TueOct 27Mostly Sunny41°64°
- WedOct 28Partly Sunny44°65°
- ThuOct 29Partly cloudy0.11 in48°67°
- FriOct 30Partly cloudy36°51°
- SatOct 31Partly cloudy32°55°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Canonsburg
More weather news-
Old Farmer’s Almanac Forecasts Rain, Snow Showers for Northeast on ThanksgivingWith autumnal foliage colors and cooler temperatures settling in across the Philadelphia region, it’s time to start our attentions to the upcoming holiday and winter season. Take a look at… The Almanac's Thanksgiving…
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AccuWeather's Pittsburgh Winter Forecast Revealed: Warm/WetWith October already over halfway over, the colder weather will soon be here. For the next week or so, Pittsburgh is expecting sunshine and highs in the low to mid 60s through at least this weekend. But how is winter…
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It's going to be a dry week without rain throughout the Pittsburgh areaOctober 19, 2026 / 7:13 AM EDT / CBS Pittsburgh It's going to be a dry week without rain in the Pittsburgh area. Any alert days ahead? Nope. There are freeze warnings in place for a couple of counties this morning…
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Beautiful fall weather continues on Tuesday, with a cool start to the dayWPXI Beautiful fall weather continues on Tuesday, with a cool start to the day PITTSBURGH â Picture-perfect fall weather continues with crisp, cool nights and warmer, sun-filled days. Temperatures will swing more than…
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Another frosty night in the Pittsburgh areaWPXI PITTSBURGH — It will be another frosty night across the entire area, with temperatures dropping back down into the 30s tonight. A Frost Advisory is in effect for much of the area from Allegheny County south and…
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Sunday begins with colder temperatures in Pittsburgh, but sunshine and seasonable weather followsOctober 18, 2026 / 7:32 AM EDT / CBS Pittsburgh We are in First Alert Weather mode until 9 a.m. with a Freeze Warning for everyone. Some areas dipped into the upper 20s! Average first fall frost for Pittsburgh is…
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Pittsburgh: A stunning stretch of fall weatherIt's only sunshine and seasonal temperatures this week. The Freeze Warning is set to expire at 9 a.m. Frosty mornings and mild afternoons with sunshine are in our future. It is shaping up to be a glorious fall week. A…
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Coldest morning since spring gives way to warmer, dry weekOnce the sun rises, weâll warm up in a hurry with highs pushing into the low 60s. Coldest morning since spring gives way to warmer, dry week PITTSBURGH â Itâs the coldest morning since spring with temperatures…
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New winter forecast reveals complete shift in snow predictions for 2027By CHRIS MELORE, US DEPUTY SCIENCE EDITOR A new forecast model predicts that the impact of a historic El Niño will completely flip America's winter, bringing snow to some areas that saw next to none last year…
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Freeze Watch Upgraded to Warning for Almost All of Pennsylvania as Conditions WorsenFreeze Warnings are now in effect for most of Pennsylvania from 1 a.m. to 9 a.m. EDT Sunday, with lows between 25 and 30 degrees expected in central Pennsylvania. The earlier Freeze Watches have been upgraded to…
Air quality
Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.
Forecast
- FriModerate (60)
- SatModerate (65)
- SunModerate
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
Almanac
MonthlyPittsburgh Area, records since 1875. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Pittsburgh 24 km
- Mount Lebanon 14 km
- Bethel Park 13 km
- Monroeville 36 km
- Cranberry Township 46 km
- Wheeling 52 km
- Plum 44 km
- Allison Park 37 km
- Murrysville 43 km
- West Mifflin 27 km
- Baldwin 18 km
- McKeesport 27 km
Forecasters' discussion
From the National Weather Service office in PBZ, issued 4 hrs ago
What Has Changed
Updated for the 06z TAF issuance.
Key Messages
1) Quiet, dry weather continues through late next week
Discussion
KEY MESSAGE 1... Broad surface high pressure will maintain dry and mostly sunny conditions through much next week. The potential for frost and freeze products remains low over the next few days as a flux of low-level moisture returns to the region; overnight lows will range from the low-40s to upper-30s.
The probability of precipitation remains low (below 10%) through next Thursday with little to no change in our large-scale weather pattern.
Aviation
High confidence VFR conditions continue through the weekend. The only change from previous days will be a scattered deck near 3-4kft. This should inhibit more widespread river valley fog, but patchy river valley fog may still develop with breaks. Have kept TEMPO BR for FKL.
Light NE'ly wind is expected after sunrise with most clear skies.
Outlook... Outside of any morning river valley fog, VFR is highly likely through Tuesday under high pressure.
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.