Pittsburgh is waking up to a crisp, clear Friday morning on May 15, with temperatures near 43°F and a brisk northwest wind cutting through the early hours. Skies stay mostly sunny into the afternoon, sending highs up to around 70°F as winds gradually ease by evening.
By tonight, Friday night, clouds start to drift back in, with partly cloudy skies and a low near 51°F as winds swing around to the southwest. Saturday, May 16, kicks the warm-up into high gear, with highs near 81°F and a 50% chance of afternoon showers and thunderstorms that jump to about an 80% chance Saturday night. A few storms could briefly toss down some hail or pack gusty winds, though forecasters still flag some uncertainty about how strong they get. If you have outdoor plans, pay attention to the timing. For the latest full forecast see NWS Pittsburgh.
Weekend Storm Risk
The prime window for rough weather lines up from late Saturday afternoon into Saturday night, a tricky time that could snag evening commutes and outdoor events. Locally heavy downpours may briefly flood low spots or cause street ponding and will cut visibility for short stretches. Sunday morning, May 17, hangs onto some leftover showers before skies turn partly sunny and warm, with highs near 82°F.
Heat Returns Early Next Week
Temperatures jump sharply Monday, May 18, and Tuesday, May 19, with a high near 90°F on Monday and around 93°F on Tuesday, well above typical mid-May readings. If you are sensitive to heat, try to skip strenuous outdoor activity during the afternoon and line up cooler indoor options such as area cooling centers run by local officials. See Allegheny County for resources.
Plan Ahead
If you are banking on an outdoor Saturday evening, keep a backup plan ready and check hour-by-hour updates since a quick, heavy shower could easily spoil the fun. Before you travel or lock in plans, check the official forecast and follow local advisories for both the storm threat this weekend and the heat early next week.
