Saturday morning, Pittsburgh woke up under a blanket of low fog, with temperatures in the mid-60s and patchy, reduced visibility. Scattered showers and thunderstorms are expected through the day, with the most active period likely in the afternoon and early evening. Brief heavy downpours could lead to minor street and creek flooding in low-lying neighborhoods.
This Afternoon: Showers And Thunderstorms
Showers and thunderstorms are likely this afternoon, with a high near 79°F and light southeast winds around 5 mph. According to the National Weather Service in Pittsburgh, the chance of precipitation is near 90 percent, and most areas can expect around a tenth to a quarter of an inch of new rainfall, with heavier pockets possible where storms train or stall. A Flood Watch is in effect through 8 p.m. this evening for parts of the forecast area.
Evening And Overnight
Showers and thunderstorms remain likely before 7 p.m., followed by a chance of additional storms into the evening before conditions shift to patchy fog overnight. Lows will settle around 66°F with light east winds and areas of reduced visibility in the fog. Build in extra time for the evening commute, since localized ponding and slick streets are possible even after the heaviest rain moves out.
Big Heat On Deck Next Week
After a generally unsettled weekend, a strong ridge of high pressure is expected to build in early next week and flip the switch to summer mode. Forecasters are calling for highs in the upper 80s and 90s, with temperatures around 90°F on Monday, climbing into the mid-90s on Tuesday, and pushing into the upper 90s on Wednesday and Thursday, along with increasing humidity. The National Weather Service notes rising confidence in a mid-week heat risk that could bring heat-related impacts and isolated severe storms, and advises monitoring daily updates as details are refined.
How To Stay Safe
Avoid driving through standing water, delay non-essential outdoor work during storms, and stay clear of flooded creeks and low-lying streets. When the heat settles in next week, use air-conditioned public spaces if you do not have reliable cooling at home. Allegheny County notes that residents can call 2-1-1 or check county resources for open cooling centers: Allegheny County. If you have an outdoor event scheduled, consider shifting start times earlier in the morning or later in the evening to avoid the peak afternoon heat.
We will be watching for changes through the weekend, so check the National Weather Service and county updates before traveling or locking in plans. Expect the weather today and a sharp warm-up by mid-week, so plan accordingly.
