Harman US

McDonald, PA Weather & Growing Conditions

Today
75°F
Partly Sunny then Chance Light Rain
A chance of rain after 1pm. Partly sunny. High near 75, with temperatures falling to around 69 in the afternoon. South wind around 12 mph, with gusts as high as 31 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Today 75°F Partly Sunny then Chance Light Rain 12 mph S 30%
Tonight 60°F Light Rain Likely 9 to 14 mph SW 70%
Thursday 68°F Slight Chance Light Rain then Mostly Sunny 9 to 15 mph SW 18%
Thursday Night 48°F Partly Cloudy 5 to 8 mph SW 0%
Friday 61°F Chance Light Rain 5 to 10 mph W 27%
Friday Night 40°F Chance Light Rain 5 to 9 mph W 27%
Saturday 51°F Mostly Cloudy then Slight Chance Light Rain 9 to 14 mph W 22%
Saturday Night 36°F Slight Chance Light Rain then Mostly Cloudy 8 to 12 mph W 22%
Sunday 55°F Mostly Sunny 8 to 14 mph W 2%
Sunday Night 35°F Mostly Clear 12 mph W 1%
Monday 58°F Sunny 9 to 14 mph W 1%
Monday Night 37°F Mostly Clear 8 to 12 mph SW 1%
Tuesday 62°F Sunny 14 mph SW 0%
Tuesday Night 37°F Partly Cloudy 3 to 9 mph W 1%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for McDonald, PA

Last spring frost
Apr 23
First fall frost
Oct 23
Growing season
181 days
Hardiness zone
6b

Explore more for McDonald, PA: full frost dates · planting calendar · Pennsylvania frost dates

Climate data from the nearest NOAA station, Pittsburgh Intl Ap, Pa (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.