WEST MIFFLIN, PA 15123 Weather Forecast & Current Conditions
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  15123 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

ALLEGHENY CO. ARPT, PA
Current Weather
4:53 AM EST JAN 20, 2026
Overcast
5°F
Feels Like: -11°F
Dewpoint: -6°F
Rel. Hum.: 55%
Visibility: 10 miles
Wind: WSW at 12 mph
Pressure: 30.27 inches
Last 72 hours

Local Area Snow Depth

Pennsylvania Current Weather

Pennsylvania MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  15123 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

WEST MIFFLIN, PA 15123
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly sunny. Very cold with highs around 18. West winds 10 to 15 mph with gusts up to 25 mph. Wind chill values as low as 11 below this morning.
TONIGHT
Mainly clear. Very cold with lows around 10 above. Southwest winds 5 to 10 mph.
WEDNESDAY
Mostly cloudy. A slight chance of snow in the morning, then snow and rain likely in the afternoon. Little or no snow accumulation. Not as cold with highs in the upper 30s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 60 percent.
WEDNESDAY NIGHT
Rain and snow likely. Little or no snow accumulation. Not as cold with lows in the upper 20s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 70 percent.
THURSDAY
Partly sunny with a chance of snow in the morning, then partly cloudy in the afternoon. Little or no snow accumulation. Near steady temperature in the lower 30s. West winds 10 to 15 mph with gusts up to 30 mph. Chance of snow 50 percent.
THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Much colder with lows 10 to 15.
FRIDAY
Mostly cloudy. Highs in the lower 20s.
FRIDAY NIGHT
Mostly cloudy. Very cold with lows zero to 5 above zero.
SATURDAY
Mostly cloudy. A chance of snow in the afternoon. Very cold with highs 10 to 15. Chance of snow 40 percent.
SATURDAY NIGHT
Considerable cloudiness with a 50 percent chance of snow. Very cold with lows 5 to 10 above.
SUNDAY
Mostly cloudy with a 50 percent chance of snow. Very cold with highs around 20.
SUNDAY NIGHT
Mostly cloudy with a 40 percent chance of snow. Very cold with lows 5 to 10 above.
MONDAY
Partly sunny. A chance of snow in the morning. Highs in the lower 20s. Chance of snow 30 percent.

  15123 WEATHER SATELLITE LOOPS
Visible Weather Satellite
WEST MIFFLIN, PA 15123
Infrared Weather Satellite
WEST MIFFLIN, PA 15123
  15123 WEATHER RADAR LOOP
NEXRAD Weather Radar
WEST MIFFLIN, PA 15123
 MOS COMPUTER WEATHER FORECAST

ALLEGHENY CO. ARPT, PA 3 hourly weather forecast
weather forecast created  6:00 PM CST  1/19/2026
Tuesday
20 JAN 2026		 WEST MIFFLIN, PA 15123 weather forecast Day 1, 0 hours 1 AM 9° -5° Partly Cloudy 1%

 0% Thunder
( 0% severe)		 W   10 50% -4°
Low 6° WEST MIFFLIN, PA 15123 weather forecast Day 1, 3 hours 4 AM 7° -8° Mostly Cloudy WSW   10 52% -5°
High 16° WEST MIFFLIN, PA 15123 weather forecast Day 1, 6 hours 7 AM 7° -8° Mostly Cloudy 0%

 0% Thunder
( 0% severe)		 WSW   10 52% -5°

Partly Cloudy



 WEST MIFFLIN, PA 15123 weather forecast Day 1, 9 hours 10 AM 9° -7° Partly Cloudy WSW   13 47% -5°
WEST MIFFLIN, PA 15123 weather forecast Day 1, 12 hours 1 PM 14° 0° Partly Cloudy 0%

 0% Thunder
( 0% severe)		 W   13 37% -5°
WEST MIFFLIN, PA 15123 weather forecast Day 1, 15 hours 4 PM 16° 3° Partly Cloudy WSW   12 33% -5°
WEST MIFFLIN, PA 15123 weather forecast Day 1, 18 hours 7 PM 13° 3° Clear 0%

 0% Thunder
( 0% severe)		 SW   7 41% -4°
WEST MIFFLIN, PA 15123 weather forecast Day 1, 21 hours 10 PM 13° 3° Clear SSW   7 43% -3°
Wednesday
21 JAN 2026		 WEST MIFFLIN, PA 15123 weather forecast Day 2, 0 hours 1 AM 13° 3° Clear 3%

 0% Thunder
( 0% severe)		 S   7 43% -3°
Low 11° WEST MIFFLIN, PA 15123 weather forecast Day 2, 3 hours 4 AM 13° 2° Partly Cloudy S   8 43% -3°
High 38° WEST MIFFLIN, PA 15123 weather forecast Day 2, 6 hours 7 AM 15° 3° Mostly Cloudy 18%
SNOW
<.1 in		 0% Thunder
( 1% severe)		 S   9 46% 0°

Mostly Cloudy

Snow Likely

 WEST MIFFLIN, PA 15123 weather forecast Day 2, 9 hours 10 AM 26° 15° Mostly Cloudy S   12 42% 8°
WEST MIFFLIN, PA 15123 weather forecast Day 2, 12 hours 1 PM 36° 27° Mostly Cloudy 53%
SNOW
2.5–5 in		 0% Thunder
( 3% severe)		 SSW   15 48% 19°
WEST MIFFLIN, PA 15123 weather forecast Day 2, 15 hours 4 PM 37° 28° Mostly Cloudy SW   14 55% 23°
WEST MIFFLIN, PA 15123 weather forecast Day 2, 18 hours 7 PM 37° 29° Mostly Cloudy 52%
RAIN/SNOW
5–10 in		 0% Thunder
( 3% severe)		 SW   13 64% 26°
WEST MIFFLIN, PA 15123 weather forecast Day 2, 21 hours 10 PM 35° 26° Mostly Cloudy SW   13 78% 29°

ALLEGHENY CO. ARPT, PA extended weather forecast
Thursday
22 JAN 2026		 Friday
23 JAN 2026		 Saturday
24 JAN 2026		 Sunday
25 JAN 2026		 Monday
26 JAN 2026
Low 30° Low 15° Low -1° Low 11° Low 12°
High 37° High 15° High 11° High 20° High 26°
WEST MIFFLIN, PA 15123 weather forecast Day 3 WEST MIFFLIN, PA 15123 weather forecast Day 4 WEST MIFFLIN, PA 15123 weather forecast Day 5 WEST MIFFLIN, PA 15123 weather forecast Day 6 WEST MIFFLIN, PA 15123 weather forecast Day 7
Overcast
84% Snow		 Overcast
28% Snow		 Overcast
21% Snow		 Overcast
71% Snow		 Mostly Cloudy
32% Snow
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