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Monessen, PA 15062 Weather
Current conditions
Observed at Pittsburgh - Allegheny County Airport · 22 min ago
Forecast
10-day-
Tonight
Patchy fog after 3am. Mostly clear, with a low around 36. North wind 1 to 5 mph.
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Wednesday
Patchy fog before 7am, then patchy frost and patchy fog between 7am and 9am. Sunny, with a high near 64. Northeast wind 0 to 3 mph.
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Wednesday Night
Patchy fog after 3am. Mostly clear, with a low around 36. North wind around 2 mph.
National Weather Service forecast updated 7 hrs ago.
Hourly
Hourly forecast- Now53°
- 9 PM50°
- 10 PM49°
- 11 PM48°
- Wed12 AM46°
- 1 AM45°
- 2 AM43°
- 3 AM42°
- 4 AM40°
- 5 AM38°
- 6 AM37°
- 7 AM36°
- 8 AM36°
- 9 AM40°
- 10 AM46°
- 11 AM52°
- 12 PM57°
- 1 PM60°
- 2 PM63°
- 3 PM64°
- 4 PM64°
- 5 PM64°
- 6 PM61°
- 7 PM57°
10-day forecast
Details- TodayOct 20Sunny36°69°
- WedOct 21Patchy Fog then Sunny36°64°
- ThuOct 22Patchy Frost then Mostly Sunny39°64°
- FriOct 23Sunny34°60°
- SatOct 24Sunny37°64°
- SunOct 25Sunny42°67°
- MonOct 26Mostly Sunny46°69°
- TueOct 27Cloudy41°59°
- WedOct 28Cloudy38°56°
- ThuOct 29Light rain0.04 in45°58°
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 Monessen
More weather news-
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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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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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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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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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…
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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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Clear & cold conditions, plus Freeze Warning tonight (10/17/26)WPXI Etna Community Organization celebrates the completion, opening of the Etna Center for Community Hazelwood workshop marks launch of new welding pre-apprenticeship program with labor secretary visit Channel 11âs…
- Pittsburgh Freeze Warning And Sunny Week Ahead
Pittsburgh is starting Saturday with chilly temperatures, gusty north winds and a few scattered rain showers before 9 a.m. The clouds should break for a mostly sunny afternoon, but the high will reach only about 53…
Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- TueUnhealthy for Sensitive Groups (101) Action day
- WedModerate (80)
- ThuModerate (70)
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 Allegheny County Ap, records since 1935. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Pittsburgh 33 km
- Mount Lebanon 27 km
- Bethel Park 24 km
- Morgantown 58 km
- Monroeville 31 km
- Plum 40 km
- Allison Park 46 km
- Murrysville 35 km
- West Mifflin 24 km
- Baldwin 22 km
- McKeesport 22 km
- Upper Saint Clair 27 km
Forecasters' discussion
From the National Weather Service office in PBZ, issued 12 hrs ago
What Has Changed
No significant changes were made to the forecast. Conditions remain quiet through the week.
Key Messages
1) Mostly dry conditions and near to above normal high temperature with light frost chances prevail through the weekend.
Discussion
KEY MESSAGE 1... Both near and long range deterministic/ensemble models remain staunch in a fairly persistent forecast featuring surface high pressure and varying upper ridging dominating the weather pattern through at least this coming weekend. The result favors near to above normal temperature, dry weather, light wind, and a preponderance of sunshine. This is likely to result in large diurnal temperature ranges, with chances for patchy morning frost (generally where the growing season has ended). Those with fall plants like mums should remain aware of this threat.
The only subtle flow change is a mostly weak shortwave that drops over the region overnight Wednesday into Thursday, potentially offering a few more clouds and less than 20% probabilities for squeezing out some light rain in areas close to Lake Erie.
Aviation
High confidence VFR will persist through the week save for patchy river valley fog and local impacts. Brief pre-dawn IFR/LIFR impacts are possible this morning at LBE, AGC, HLG, and FKL. Light NE wind will likely develop late this morning and persist through the day. Calm conditions possible again tonight.
Outlook... Outside of any morning river valley fog, VFR is highly likely through Saturday 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 4Conservative index and reflects what the press published. Terms of use.