Pittsburgh’s Saturday forecast calls for a chilly start near 43°F, with patchy morning fog expected to lift by about 9 a.m. Sunny skies should follow, bringing an afternoon high near 66°F, according to the National Weather Service.
A mild afternoon against late-October benchmarks
The forecast high is warmer than the available date-specific benchmark: the NWS climate report lists a normal high of 60°F for Oct. 24, 2026, making Saturday’s forecast about 6°F above that figure. The same report gives an Oct. 24 record high of 81°F, set in 1963. These comparisons offer context for Saturday, not evidence of a longer-term temperature trend. The NWS Pittsburgh normals table uses 1981–2010 data and lists an average high of 57.5°F for Oct. 31; it is a different date and baseline, not a daily normal for the full forecast period. The climate figures are reported by the National Weather Service.
Fog possible again before the sun breaks through
The NWS outlook also allows for patchy fog after 5 a.m. Saturday night, with a low around 38°F. Sunday is forecast to have areas of fog before 10 a.m., followed by sunshine and a high near 67°F. Sunday night should be mostly clear with a low near 39°F; Monday brings another chance of morning fog, then sun and a high near 69°F, according to the Pittsburgh point forecast.
Clear skies and light winds can contribute to valley fog when cooled air settles into low-lying areas, and such fog can dissipate within a few hours after sunrise, the NWS Binghamton office explains. That is general meteorological background—not confirmation of what will cause fog in Pittsburgh this weekend. The forecast itself points to repeated morning fog followed by brighter afternoons.
The outlook continues with Tuesday mostly sunny and near 66°F, Wednesday mostly cloudy and near 69°F, and Thursday sunny with a high near 72°F, according to the National Weather Service forecast. The pattern points to cool early hours and milder afternoons, while the timing and extent of any patchy fog remain forecast possibilities.
