Monessen, PA Weather & Growing Conditions
Tonight
52°F
Mostly Clear
Mostly clear, with a low around 52. South wind 0 to 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear | 0 to 3 mph S | 2% |
| Wednesday | 79°F | Partly Sunny | 2 to 9 mph S | 8% |
| Wednesday Night | 61°F | Light Rain | 9 mph S | 99% |
| Thursday | 72°F | Chance Light Rain | 7 to 13 mph SW | 40% |
| Thursday Night | 49°F | Mostly Cloudy | 1 to 6 mph SW | 9% |
| Friday | 67°F | Partly Sunny | 1 to 7 mph W | 13% |
| Friday Night | 44°F | Chance Light Rain | 6 mph NW | 28% |
| Saturday | 57°F | Chance Light Rain | 6 to 12 mph W | 30% |
| Saturday Night | 36°F | Chance Light Rain then Mostly Cloudy | 3 to 8 mph W | 28% |
| Sunday | 57°F | Partly Sunny then Slight Chance Light Rain | 5 to 10 mph SW | 16% |
| Sunday Night | 34°F | Slight Chance Light Rain | 10 mph SW | 23% |
| Monday | 58°F | Chance Light Rain | 9 to 15 mph W | 32% |
| Monday Night | 35°F | Chance Light Rain then Partly Cloudy | 9 to 13 mph SW | 32% |
| Tuesday | 61°F | Mostly Sunny | 13 to 17 mph SW | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Monessen, PA
Last spring frost
Apr 13
First fall frost
Nov 5
Growing season
205 days
Hardiness zone
6b
Explore more for Monessen, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Charleroi Lock 4, Pa (0.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.