Here’s the latest Pittsburgh weather news and forecast based on recent reliable sources.
Brief update
- Pittsburgh is experiencing a warm spell with mostly clear conditions at the moment. Temperature is in the low 70s Fahrenheit, with humidity around 80% and light SW winds. This suggests daytime heating and elevated heat risk for outdoor activities if this pattern holds into afternoon [source: AccuWeather summary for Pittsburgh, May 17–18, 2026].
Forecast snapshot
- Today (May 18, 2026): Record-breaking heat is forecast, with temperatures trending toward the upper 80s to 90s°F in many spots. Partly to mostly sunny skies are expected, making for a hot day.
- Tomorrow (May 19): A potential thunderstorm in the afternoon, with temperatures easing slightly but staying warm.
- Midweek (May 20–21): Additional shower or thunderstorm chances, followed by partly sunny and cooler conditions later in the week.
- Across the trend: Expect humidity to remain high during the heat, with scattered storms possible in the afternoons.
What this means for you in NYC
- If you’re planning travel or outdoor activity, consider timing around the afternoon heat and potential storms. Keep hydrated, apply sun protection, and have a weather-aware plan for outdoor plans, especially on May 18–19 when heat and storm potential peak.
Would you like me to pull official hourly forecasts for your exact location in Pittsburgh or provide a quick 3-day plan with cooling options and storm safety tips? I can also fetch localized alerts if you want.
Citations
- General weather summary and forecast notes for Pittsburgh indicating hot temperatures and storm chances.