Pittsburgh is starting Sunday under mostly cloudy skies and temperatures near 66 degrees, but the quiet morning is only a brief pause before a hot stretch. The city is forecast to reach 88 this afternoon, with heat building through Wednesday before thunderstorms become a bigger concern.
Heat Builds Through Wednesday
Sunday should turn partly sunny, with southwest winds between 2 and 8 mph and little chance of rain. Monday climbs to 90, Tuesday reaches 93 under mostly sunny skies, and Wednesday could top out near 94. The National Weather Service says heat indices may reach the mid- to upper 90s Wednesday, with a few spots possibly nearing 100.
Storm Chances Arrive In Stages
Most of Sunday and Monday look dry around Pittsburgh, though clouds will linger at times. Isolated showers could develop after 2 a.m. Tuesday night, followed by a few early Wednesday showers before skies turn mostly sunny. By Thursday, showers and thunderstorms are likely, with a 60% chance of precipitation and the potential for some severe storms late Wednesday into Thursday.
Cooler Weather Follows
Friday brings a noticeable step down, with a high near 84 and a 40% chance of showers and thunderstorms. Saturday stays seasonably warm near 83, but rain showers remain possible. Overnight lows hover around 69 to 73 through midweek before dipping to about 65 Friday night.
There are no watches or warnings posted for Pennsylvania, Ohio or West Virginia in the current forecast. For Sunday plans, light winds and a very low rain chance should keep outdoor time workable, though the heat and humidity will take over as the week progresses.
