IRWIN, PA 15642 Weather Forecast & Current Conditions
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  15642 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

ALLEGHENY CO. ARPT, PA
Current Weather
10:53 AM EDT JUL 16, 2025
Scattered Clouds
81°F
Feels Like: 86°F
Dewpoint: 73°F
Rel. Hum.: 77%
Visibility: 8 miles
Wind: S at 9 mph
Pressure: 30.02 inches
Last 72 hours

Local Area Snow Depth

Pennsylvania Current Weather

Pennsylvania MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  15642 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

IRWIN, PA 15642
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
REST OF TODAY
Considerable cloudiness. A chance of showers and thunderstorms late this morning, then showers and thunderstorms likely this afternoon. Highs in the mid 80s. Southwest winds around 5 mph. Chance of rain 70 percent.
TONIGHT
Showers likely. Thunderstorms likely, mainly in the evening. Humid with lows around 70. Southwest winds 5 to 10 mph. Chance of rain 70 percent.
THURSDAY
Mostly cloudy. A chance of showers in the morning, then showers with thunderstorms likely in the afternoon. Humid with highs in the mid 80s. Southwest winds 10 to 15 mph. Chance of rain 90 percent. Heat index values in the mid 90s in the afternoon.
THURSDAY NIGHT
Considerable cloudiness. Showers with thunderstorms likely in the evening, then a slight chance of showers and thunderstorms after midnight. Humid with lows in the upper 60s. West winds 5 to 10 mph. Chance of rain 90 percent.
FRIDAY
Considerable cloudiness in the morning, then becoming partly sunny. A chance of showers. Humid with highs around 80. Northwest winds around 5 mph. Chance of rain 50 percent.
FRIDAY NIGHT
Partly cloudy with a chance of showers in the evening, then mostly cloudy after midnight. Patchy fog after midnight. Lows in the mid 60s. Chance of rain 50 percent.
SATURDAY
Partly sunny. Patchy fog in the morning. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 60 percent.
SATURDAY NIGHT
Showers likely with a chance of thunderstorms. Lows in the upper 60s. Chance of rain 70 percent.
SUNDAY
Showers likely. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 70 percent.
SUNDAY NIGHT
Mostly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Patchy fog after midnight. Lows in the mid 60s. Chance of rain 70 percent.
MONDAY
Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.
MONDAY NIGHT
A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 40 percent.
TUESDAY
Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent.

  15642 WEATHER SATELLITE LOOPS
Visible Weather Satellite
IRWIN, PA 15642
Infrared Weather Satellite
IRWIN, PA 15642
  15642 WEATHER RADAR LOOP
NEXRAD Weather Radar
IRWIN, PA 15642
 MOS COMPUTER WEATHER FORECAST

ALLEGHENY CO. ARPT, PA 3 hourly weather forecast
weather forecast created  7:00 PM CDT  7/15/2025
Wednesday
16 JUL 2025		 IRWIN, PA 15642 weather forecast Day 1, 0 hours 2 AM 75° 75° Partly Cloudy 1%

 0% Thunder
( 6% severe)		 SE   3 84% 70°
Low 71° IRWIN, PA 15642 weather forecast Day 1, 3 hours 5 AM 72° 72° Mostly Cloudy SSE   5 90% 69°
High 83° IRWIN, PA 15642 weather forecast Day 1, 6 hours 8 AM 74° 74° Mostly Cloudy 43%
RAIN
***		 0% Thunder
( 30% severe)		 S   6 87% 70°

Mostly Cloudy

Rain Likely

 IRWIN, PA 15642 weather forecast Day 1, 9 hours 11 AM 79° 82° Mostly Cloudy SSW   7 77% 71°
IRWIN, PA 15642 weather forecast Day 1, 12 hours 2 PM 81° 85° Mostly Cloudy 78%
RAIN
***		 0% Thunder
( 61% severe)		 SSW   7 74% 72°
IRWIN, PA 15642 weather forecast Day 1, 15 hours 5 PM 79° 82° Mostly Cloudy WSW   7 79% 72°
IRWIN, PA 15642 weather forecast Day 1, 18 hours 8 PM 75° 75° Mostly Cloudy 62%
RAIN
***		 0% Thunder
( 45% severe)		 S   6 87% 71°
IRWIN, PA 15642 weather forecast Day 1, 21 hours 11 PM 74° 74° Mostly Cloudy SSW   7 87% 70°
Thursday
17 JUL 2025		 IRWIN, PA 15642 weather forecast Day 2, 0 hours 2 AM 73° 73° Mostly Cloudy 33%
RAIN
.25–.5 in		 0% Thunder
( 15% severe)		 SSW   8 90% 70°
Low 71° IRWIN, PA 15642 weather forecast Day 2, 3 hours 5 AM 72° 72° Mostly Cloudy SW   9 93% 70°
High 84° IRWIN, PA 15642 weather forecast Day 2, 6 hours 8 AM 73° 73° Mostly Cloudy 24%
RAIN
.01–.1 in		 0% Thunder
( 27% severe)		 SW   9 93% 71°

Mostly Cloudy

Rain Likely

 IRWIN, PA 15642 weather forecast Day 2, 9 hours 11 AM 78° 80° Mostly Cloudy SW   12 82% 72°
IRWIN, PA 15642 weather forecast Day 2, 12 hours 2 PM 82° 87° Mostly Cloudy 72%
RAIN
***		 0% Thunder
( 62% severe)		 SW   12 74% 73°
IRWIN, PA 15642 weather forecast Day 2, 15 hours 5 PM 81° 85° Mostly Cloudy WSW   10 74% 72°
IRWIN, PA 15642 weather forecast Day 2, 18 hours 8 PM 76° 77° Mostly Cloudy 53%
RAIN
1–2 in		 0% Thunder
( 38% severe)		 W   8 85% 71°
IRWIN, PA 15642 weather forecast Day 2, 21 hours 11 PM 75° 75° Mostly Cloudy W   8 87% 71°

ALLEGHENY CO. ARPT, PA extended weather forecast
BAD DAY
BAD DATE		 BAD DAY
BAD DATE		 BAD DAY
BAD DATE		 BAD DAY
BAD DATE		 BAD DAY
BAD DATE
Low 71° Low 67° Low 64° Low 67° Low 68°
High 85° High 80° High 84° High 83° High 85°
IRWIN, PA 15642 weather forecast Day 3 IRWIN, PA 15642 weather forecast Day 4 IRWIN, PA 15642 weather forecast Day 5 IRWIN, PA 15642 weather forecast Day 6 IRWIN, PA 15642 weather forecast Day 7
Overcast
98% Rain		 Overcast
72% Rain		 Partly Cloudy
29% Rain		 Overcast
64% Rain		 Overcast
57% Rain
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