Current Conditions

Plum, Pennsylvania

56°F13°C

Drizzle

Wind

E 8 mph14 km/h

Humidity

86%

Cloud Cover

96%

As of Wednesday, September 23, 2026 at 4:16 AM EDT

Today's Outlook

Day

Mostly cloudy and mild, with a high of 64°F18°C and morning low of 56°F13°C. Breezy from the E at 9 to 10 mph15 to 16 km/h. 25% chance of drizzle in the morning. Dry air.

Night

Overcast, with a low around 55°F13°C. Breezy from the E at 8 to 9 mph13 to 14 km/h. 50% chance of drizzle overnight.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 64°F18°C	Low 55°F13°C	Precip 0.05 in1.3 mm50%	Cloud 78%	Wind E 9 mph14 km/h	Wednesday: Mostly cloudy and mild, with a high of 64°F18°C and morning low of 56°F13°C. Breezy from the E at 9 to 10 mph15 to 16 km/h. 25% chance of drizzle in the morning. Dry air. Wednesday Night: Overcast, with a low around 55°F13°C. Breezy from the E at 8 to 9 mph13 to 14 km/h. 50% chance of drizzle overnight.
Partly Cloudy	High 66°F19°C	Low 49°F10°C	Precip 0 in0.1 mm6%	Cloud 49%	Wind ENE 7 mph11 km/h	Thursday: Mostly cloudy and mild, with a high of 66°F19°C and morning low of 51°F10°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h. Dry air. Thursday Night: Partly cloudy, with a low around 49°F10°C. Breezy from the ENE at 6 to 7 mph10 to 11 km/h.
Clear	High 70°F21°C	Low 43°F6°CFeels 39°F4°C	Precip 0 in0 mm—	Cloud 9%	Wind NNE 6 mph10 km/h	Friday: Mostly clear and warm, with a high of 70°F21°C and morning low of 43°F6°C. Light wind from the NNE around 6 mph9 km/h. Dry air. Friday Night: Mostly clear, with a low around 43°F6°C. Breezy from the NNE at 7 mph11 km/h.
Clear	High 71°F22°C	Low 47°F8°CFeels 44°F7°C	Precip 0 in0.1 mm2%	Cloud 23%	Wind N 7 mph11 km/h	Saturday: Mostly clear and warm, with a high of 71°F22°C and morning low of 47°F8°C. Breezy from the N at 6 to 7 mph10 to 12 km/h. Dry air. Saturday Night: Partly cloudy, with a low around 47°F8°C. Breezy from the N at 7 to 8 mph11 to 12 km/h.
Drizzle	High 67°F20°C	Low 50°F10°CFeels 47°F8°C	Precip 0.04 in0.9 mm16%	Cloud 64%	Wind NNW 7 mph11 km/h	Sunday: Mostly cloudy and mild, with a high of 67°F20°C and morning low of 50°F10°C. Breezy from the NNW at 7 to 9 mph12 to 14 km/h. 16% chance of drizzle in the afternoon. Dry air. Sunday Night: Mostly cloudy, with a low around 50°F10°C. Breezy from the NNW at 6 to 7 mph10 to 11 km/h. 16% chance of drizzle in the evening.
Partly Cloudy	High 68°F20°C	Low 54°F12°C	Precip 0.02 in0.5 mm8%	Cloud 68%	Wind NW 4 mph7 km/h	Monday: Mostly cloudy and mild, with a high of 68°F20°C and morning low of 54°F12°C. Light wind from the NW around 4 mph7 km/h. Monday Night: Mostly cloudy, with a low around 54°F12°C. Light wind from the NW around 4 mph7 km/h.
Partly Cloudy	High 72°F22°C	Low 52°F11°C	Precip 0 in0 mm—	Cloud 45%	Wind SSE 3 mph5 km/h	Tuesday: Partly cloudy and warm, with a high of 72°F22°C and morning low of 52°F11°C. Light wind from the SSW around 3 mph4 km/h. Tuesday Night: Partly cloudy, with a low around 52°F11°C. Light wind from the SE around 4 mph6 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	64°F18°C	55°F13°C	0.05 in1.3 mm· 50%	78%	Drizzle	E 9 mph14 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 56°F13°C. Breezy from the E at 9 to 10 mph15 to 16 km/h. 25% chance of drizzle in the morning. Dry air. NightOvercast, with a low around 55°F13°C. Breezy from the E at 8 to 9 mph13 to 14 km/h. 50% chance of drizzle overnight.
	ThursdaySep 24	66°F19°C	49°F10°C	0 in0.1 mm· 6%	49%	Partly Cloudy	ENE 7 mph11 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 51°F10°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h. Dry air. NightPartly cloudy, with a low around 49°F10°C. Breezy from the ENE at 6 to 7 mph10 to 11 km/h.
	FridaySep 25	70°F21°C	43°F6°C Feels 39°F4°C	0 in0 mm· —	9%	Clear	NNE 6 mph10 km/h
DayMostly clear and warm, with a high of 70°F21°C and morning low of 43°F6°C. Light wind from the NNE around 6 mph9 km/h. Dry air. NightMostly clear, with a low around 43°F6°C. Breezy from the NNE at 7 mph11 km/h.
	SaturdaySep 26	71°F22°C	47°F8°C Feels 44°F7°C	0 in0.1 mm· 2%	23%	Clear	N 7 mph11 km/h
DayMostly clear and warm, with a high of 71°F22°C and morning low of 47°F8°C. Breezy from the N at 6 to 7 mph10 to 12 km/h. Dry air. NightPartly cloudy, with a low around 47°F8°C. Breezy from the N at 7 to 8 mph11 to 12 km/h.
	SundaySep 27	67°F20°C	50°F10°C Feels 47°F8°C	0.04 in0.9 mm· 16%	64%	Drizzle	NNW 7 mph11 km/h
DayMostly cloudy and mild, with a high of 67°F20°C and morning low of 50°F10°C. Breezy from the NNW at 7 to 9 mph12 to 14 km/h. 16% chance of drizzle in the afternoon. Dry air. NightMostly cloudy, with a low around 50°F10°C. Breezy from the NNW at 6 to 7 mph10 to 11 km/h. 16% chance of drizzle in the evening.
	MondaySep 28	68°F20°C	54°F12°C	0.02 in0.5 mm· 8%	68%	Partly Cloudy	NW 4 mph7 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 54°F12°C. Light wind from the NW around 4 mph7 km/h. NightMostly cloudy, with a low around 54°F12°C. Light wind from the NW around 4 mph7 km/h.
	TuesdaySep 29	72°F22°C	52°F11°C	0 in0 mm· —	45%	Partly Cloudy	SSE 3 mph5 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 52°F11°C. Light wind from the SSW around 3 mph4 km/h. NightPartly cloudy, with a low around 52°F11°C. Light wind from the SE around 4 mph6 km/h.
	WednesdaySep 30	75°F24°C	53°F12°C	0.05 in1.3 mm· 16%	59%	Drizzle	SSE 5 mph8 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 54°F12°C. Light wind from the SSE around 5 mph8 km/h. NightMostly cloudy, with a low around 53°F12°C. Breezy from the SE at 6 to 7 mph9 to 11 km/h. 16% chance of drizzle in the evening.
	ThursdayOct 1	72°F22°C	59°F15°C	0.2 in5 mm· 30%	75%	Light Rain	S 6 mph10 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 59°F15°C. Breezy from the S at 6 to 7 mph10 to 11 km/h. 30% chance of light rain throughout the day. NightMostly cloudy, with a low around 60°F15°C. Breezy from the SSE at 6 to 7 mph10 to 11 km/h. 25% chance of light rain throughout the night.
	FridayOct 2	69°F20°C	58°F14°C	0.21 in5.4 mm· 36%	71%	Light Rain	S 7 mph11 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 58°F14°C. Breezy from the SSW at 7 mph11 km/h. 36% chance of light rain throughout the day. NightMostly cloudy, with a low around 58°F15°C. Light wind from the SSE around 6 mph10 km/h. 30% chance of showers throughout the night.
	SaturdayOct 3	70°F21°C	56°F13°C	0.15 in3.9 mm· 25%	66%	Showers	S 6 mph10 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 56°F13°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 25% chance of showers throughout the day. NightMostly cloudy, with a low around 56°F14°C. Light wind from the S around 6 mph10 km/h. 25% chance of showers throughout the night.
	SundayOct 4	68°F20°C	56°F13°C	0.16 in4 mm· 32%	66%	Showers	SW 6 mph10 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 56°F13°C. Breezy from the SW at 7 to 8 mph11 to 12 km/h. 32% chance of light rain throughout the day. NightMostly cloudy, with a low around 56°F14°C. Light wind from the SSW around 6 mph10 km/h. 22% chance of drizzle throughout the night.
	MondayOct 5	66°F19°C	54°F12°C	0.13 in3.2 mm· 25%	59%	Drizzle	WSW 6 mph10 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 54°F12°C. Breezy from the WSW at 7 mph11 km/h. 25% chance of drizzle throughout the day. NightMostly cloudy, with a low around 54°F12°C. Light wind from the SW around 6 mph10 km/h. 16% chance of drizzle throughout the night.
	TuesdayOct 6	64°F18°C	50°F10°C	0.12 in3 mm· 19%	60%	Drizzle	W 6 mph10 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 50°F10°C. Breezy from the W at 6 to 7 mph10 to 12 km/h. 19% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 51°F10°C. Light wind from the W around 6 mph9 km/h. 19% chance of drizzle throughout the night.
	WednesdayOct 7	62°F16°C	48°F9°C Feels 45°F7°C	0.09 in2.3 mm· 27%	53%	Drizzle	W 6 mph10 km/h
DayMostly cloudy and mild, with a high of 62°F16°C and morning low of 48°F9°C. Breezy from the W at 7 mph11 km/h. 27% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 49°F9°C. Light wind from the W around 6 mph10 km/h. 16% chance of drizzle throughout the night.

Nearby Cities

Penn Hills5 mi8 km Murrysville6 mi9 km Monroeville6 mi9 km Wilkinsburg8 mi13 km West Mifflin11 mi18 km Allison Park12 mi19 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

Pattern	Example	Description
/weather/{country}/{city}/	/weather/united-states/san-francisco/	City forecast (canonical URL)
/weather/{city}/	/weather/tokyo/	Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}	/weather/nearby?lat=48.1&lon=11.5	Find nearest city by coordinates
/weather/{country}/	/weather/germany/	Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 40.5003°N, 79.7495°W·Elevation: 347m·Timezone: America/New_York·Population: 27,505