What is today's weather forecast for Monessen, PA?

Today's forecast for Monessen shows a low of 20 degrees Fahrenheit. Mostly cloudy, with a low around 20.

What is the 7-day weather forecast for Monessen, PA?

The 7-day forecast for Monessen shows highs from 20 to 50 degrees and lows from 13 to 36 degrees Fahrenheit. Expect precipitation on 4 days with chances of 20% or higher.

Will it rain in Monessen, PA this week?

Yes, rain is possible in Monessen this week. Precipitation chances: Saturday (90% chance), Sunday (40% chance), Wednesday (40% chance), Thursday (70% chance).

How accurate is the Monessen weather forecast?

WeatherForYou provides highly accurate Monessen forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Monessen, PA Weather Forecast and Current Conditions

WEATHER ALERTS - Winter Storm Watch

Current Conditions From Nearby Local Station

Switch to Metric Units

26°F
Feels Like 24°F

Humidity 77% Dew Point 20°F Wind WSW 2 MPH Gusts 6 Barometer 30.06 in.

Report from a MADIS/MESONET weather station 1.7 mi. NNE of central Monessen
at 2:08 AM Fri, Dec 12, 2025

Point Forecast at a Glance

ThuDec 11

FriDec 12

SatDec 13

60%

SunDec 14

30%

MonDec 15

TueDec 16

WedDec 17

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

High temperatures dip from 34°F to a low of 20°F mid-week, then warm to 43°F. Some precipitation possible, including both rain and snow.

Climate Context

This week's forecast shows temperatures running 8°F below the historical average for December. Normal highs for this period are around 42°F with lows around 26°F.

This Date in Weather History

1932 - Very cold weather prevailed along the West Coast. San Francisco received 0.8 inch of snow, and at the airport the temperature dipped to 20 degrees. At Sacramento CA, the mercury dipped to 17 degrees to establish an all-time record low for that location. Morning lows were below freezing from the 9th to the 15th at Sacramento, and the high on the 11th was just 34 degrees. The cold wave dealt severe damage to truck crops and orange groves in the Sacramento Valley.

Monessen, PA 7 Day Weather Forecast Details

Thursday Dec 11

Night: Mostly cloudy, with a low around 20. West wind 3 to 6 mph.

Friday Dec 12

Day: Mostly sunny, with a high near 34. Calm wind.

Night: Increasing clouds, with a low around 21. Calm wind becoming southwest around 6 mph after midnight.

Saturday Dec 13

Day: Isolated snow showers before 7am, then snow likely after 1pm. Cloudy, with a high near 34. Southwest wind 8 to 14 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Night: Snow. Low around 14. West wind around 8 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Sunday Dec 14

Day: A chance of snow. Mostly cloudy, with a high near 20. Chance of precipitation is 30%.

Night: A chance of snow before 1am. Mostly cloudy, with a low around 13. Chance of precipitation is 40%.

Monday Dec 15

Day: Mostly cloudy, with a high near 23.

Night: Mostly cloudy, with a low around 15.

Tuesday Dec 16

Day: Partly sunny, with a high near 34.

Night: Mostly cloudy, with a low around 25.

Wednesday Dec 17

Day: Mostly cloudy, with a high near 43.

Night: A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.

Thursday Dec 18

Day: Rain likely. Mostly cloudy, with a high near 50. Chance of precipitation is 70%.

About Monessen, PA

Monessen is a city in Westmoreland County, Pennsylvania, United States, along the Monongahela River. The population was 6,876 at the 2020 census. It is part of the Pittsburgh metropolitan area. Steelmaking was a prominent industry in Monessen, and it became a third-class city in 1921. With restructuring of the steel industry in the late 20th century and loss of jobs, it is considered a Rust Belt borough in the "Mon Valley" of southwestern Pennsylvania. Monessen is included in the Rivers of Steel National Heritage Area, as well as the Laurel Highlands. It sits across the Monongahela from the city of North Charleroi.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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