West Mifflin, PA Weather Forecast | 5 Day

Updated: Sun Jun 14th 2026 12:00 AM EDT

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West Mifflin, PA Weather Forecast - 6-14-26 - Moderate Rain

Moderate Rain

Sun 6-14-26

Moderate Rain with a high of 80°F and a low of 58°F. Rainfall expected to have a 73% chance with an estimated 0.3in. Wind will be moderate, blowing around 15mph on average and gusts of 23.5mph at 7 PM. The humidity will be on the higher side, averaging about 77%, the maximum being 98% at 5 PM and 53% being its lowest at 9 AM. Barometric pressure is its highest of 29.96inHg at 1 AM, a lowest point of 29.66inHg at 7 PM with an avg 29.8inHg.

    • HI: 80°F
    • LO: 58°F
    • Rainfall: 73% | est. 0.3in
    • Snowfall: 0%
    • Wind
      14.8 mph
    • Humidity
      77% avg.
    • UV Index
      1.9
    • Air Quality
      Good
    • Sunrise
      05:48 AM
    • Sunset
      08:50 PM
    • Moonrise
      04:34 AM
    • Moonset
      08:42 PM
    • Moon Phase
      New Moon
West Mifflin, PA Weather Forecast - 6-15-26 - Scattered Showers

Scattered Showers

Weather Tomorrow, Mon 6-15-26

Scattered Showers with a high of 69°F and a low of 52°F. There might be light rainfall having a 25% chance with an estimated 0.01in. Winds will be light at 10mph and gusts of 11.8mph at 9 AM. The humidity will be on the higher side, averaging about 71%, the maximum being 99% at 2 AM and 41% being its lowest at 5 PM. Barometric pressure is its highest of 29.95inHg at 9 AM, a lowest point of 29.83inHg at 12 AM with an avg 29.9inHg.

    • HI: 69°F
    • LO: 52°F
    • Rainfall: 25% | est. 0.01in
    • Snowfall: 0%
    • Wind
      9.6 mph
    • Humidity
      71% avg.
    • UV Index
      8.4
    • Air Quality
      Good
    • Sunrise
      05:48 AM
    • Sunset
      08:51 PM
    • Moonrise
      05:33 AM
    • Moonset
      09:47 PM
    • Moon Phase
      New Moon
West Mifflin, PA Weather Forecast - 6-16-26 - Partly Cloudy

Partly Cloudy

Tue 6-16-26

Partly Cloudy with a high of 74°F and a low of 53°F. There's a very small chance of rainfall, only about 5%. Winds will be light at 9mph and gusts of 9.3mph at 1 PM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 74% at 12 AM and 39% being its lowest at 3 PM. Barometric pressure is its highest of 29.94inHg at 12 AM, a lowest point of 29.74inHg at 7 PM with an avg 29.84inHg.

    • HI: 74°F
    • LO: 53°F
    • Rainfall: 5%
    • Snowfall: 0%
    • Wind
      8.1 mph
    • Humidity
      60% avg.
    • UV Index
      7.6
    • Air Quality
      Good
    • Sunrise
      05:48 AM
    • Sunset
      08:51 PM
    • Moonrise
      06:44 AM
    • Moonset
      10:41 PM
    • Moon Phase
      Waxing Crescent
West Mifflin, PA Weather Forecast - 6-17-26 - Scattered Showers

Scattered Showers

Wed 6-17-26

Scattered Showers with a high of 76°F and a low of 57°F. Rainfall expected to have a 57% chance with an estimated 0.05in. Wind will be moderate, blowing around 14mph on average and gusts of 15.3mph at 1 PM. The humidity will be on the higher side, averaging about 68%, the maximum being 98% at 7 AM and 41% being its lowest at 4 PM. Barometric pressure is its highest of 29.76inHg at 12 PM, a lowest point of 29.7inHg at 5 AM with an avg 29.73inHg.

    • HI: 76°F
    • LO: 57°F
    • Rainfall: 57% | est. 0.05in
    • Snowfall: 0%
    • Wind
      13.2 mph
    • Humidity
      68% avg.
    • UV Index
      7.1
    • Air Quality
      Good
    • Sunrise
      05:49 AM
    • Sunset
      08:51 PM
    • Moonrise
      08:03 AM
    • Moonset
      11:23 PM
    • Moon Phase
      Waxing Crescent
West Mifflin, PA Weather Forecast - 6-18-26 - Heavy Rain

Heavy Rain

Thu 6-18-26

Heavy Rain with a high of 71°F and a low of 66°F. It will likey rain, having a 91% chance of a downpour with an estimated 1.06in. Wind will be moderate, blowing around 19mph on average and gusts of 30.1mph at 6 AM. High humidity with average of 94% is anticipated, the maximum being 98% at 4 AM and 78% being its lowest at 12 AM. Barometric pressure is its highest of 29.8inHg at 11 PM, a lowest point of 29.56inHg at 5 AM with an avg 29.67inHg.

    • HI: 71°F
    • LO: 66°F
    • Rainfall: 91% | est. 1.06in
    • Snowfall: 0%
    • Wind
      18.1 mph
    • Humidity
      94% avg.
    • UV Index
      0.3
    • Air Quality
      Good
    • Sunrise
      05:49 AM
    • Sunset
      08:52 PM
    • Moonrise
      09:23 AM
    • Moonset
      11:57 PM
    • Moon Phase
      Waxing Crescent
West Mifflin, PA Weather Forecast - 6-19-26 - Moderate Rain

Moderate Rain

Fri 6-19-26

Moderate Rain with a high of 74°F and a low of 58°F. It will likey rain, having a 83% chance of a downpour with an estimated 0.38in. Wind will be moderate, blowing around 11mph on average and gusts of 13.4mph at 12 AM. High humidity with average of 84% is anticipated, the maximum being 99% at 4 AM and 64% being its lowest at 5 PM. Barometric pressure is its highest of 29.83inHg at 11 PM, a lowest point of 29.68inHg at 5 AM with an avg 29.72inHg.

    • HI: 74°F
    • LO: 58°F
    • Rainfall: 83% | est. 0.38in
    • Snowfall: 0%
    • Wind
      10.1 mph
    • Humidity
      84% avg.
    • UV Index
      4
    • Air Quality
      TBA
    • Sunrise
      05:49 AM
    • Sunset
      08:52 PM
    • Moonrise
      10:41 AM
    • Moonset
      Does not set today
    • Moon Phase
      Waxing Crescent

This 5-Day weather forecast is relevant for ZIP codes 15122 and 15123, accurately covering areas of West Mifflin, PA.