Monessen, PA Weather Tomorrow

Access tomorrow's Monessen weather forecast and the next 5 days of weather details, including precipitation probability, daily and nightly weather conditions, high and low temperature trends, sunrise and sunset information, sky cover, wind speed, wind direction, and wind chill for the Monessen area and around Westmoreland county, Pennsylvania.
Updated: Sat Oct 31st 2026 6:15 AM EDT
Monessen, PA Weather – 10-31 – Overcast
59° / 40°
Overcast
Monessen may see overcast, with daytime highs of 59°F and overnight lows near 40°F. There might be light rainfall having a 17% chance. Winds will be light at 6mph and gusts of 15mph at 7 AM. The humidity will be on the higher side, averaging about 70%, the maximum being 93% at 8 AM and 45% being its lowest at 3 PM. Barometric pressure is its highest of 30.51inHg at 9 AM, a lowest point of 30.43inHg at 3 PM with an avg 30.47inHg.
Monessen, PA Weather – 11-1 – Overcast
66° / 48°

Weather Tomorrow

Overcast
Monessen is set for overcast with temperatures peaking at 66°F and dipping to 48°F. There might be light rainfall having a 14% chance. Winds will be light at 6mph and gusts of 11.2mph at 9 PM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 72% at 11 PM and 45% being its lowest at 1 PM. Barometric pressure is its highest of 30.46inHg at 8 AM, a lowest point of 30.36inHg at 3 PM with an avg 30.41inHg.
Monessen, PA Weather – 11-2 – Overcast
64° / 50°
Overcast
Cloud-filled skies are in the forecast for Monessen, with a high of 64°F and a low of 50°F. There might be light rainfall having a 17% chance with an estimated 0in. Winds will be light at 7mph and gusts of 16.4mph at 3 PM. The humidity will be on the higher side, averaging about 68%, the maximum being 76% at 7 AM and 55% being its lowest at 1 PM. Barometric pressure is its highest of 30.39inHg at 2 AM, a lowest point of 30.25inHg at 4 PM with an avg 30.32inHg.
Monessen, PA Weather – 11-3 – Sunny
71° / 46°
Sunny
Monessen could see a sunny day with daytime highs of 71°F and nighttime lows near 46°F. There's a very small chance of rainfall, only about 8%. Winds will be light at 8mph and gusts of 18.6mph at 7 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 83% at 7 AM and 39% being its lowest at 1 PM. Barometric pressure is its highest of 30.25inHg at 12 AM, a lowest point of 30.08inHg at 11 PM with an avg 30.17inHg.
Monessen, PA Weather – 11-4 – Overcast
74° / 50°
Overcast
Skies will be overcast in Monessen, with a high of 74°F and a low of 50°F. There's a moderate 44% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 12mph on average and gusts of 25.9mph at 10 PM. The humidity will be on the higher side, averaging about 73%, the maximum being 86% at 7 AM and 53% being its lowest at 2 PM. Barometric pressure is its highest of 30.12inHg at 1 AM, a lowest point of 29.92inHg at 5 PM with an avg 30.01inHg.
Monessen, PA Weather – 11-5 – Scattered Showers
66° / 59°
Scattered Showers
Daytime highs will reach 66°F with lows dropping to 59°F in Monessen, where showers likely at times. The chance of rain is 85% with an estimated 0.3in. Winds will be light at 10mph and gusts of 20.8mph at 1 PM. High humidity with average of 86% is anticipated, the maximum being 91% at 11 PM and 78% being its lowest at 1 PM. Barometric pressure is its highest of 29.95inHg at 11 PM, a lowest point of 29.89inHg at 1 PM with an avg 29.92inHg.

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