Pittsburgh woke up to clear skies and a brisk chill Monday morning, May 11, with temperatures in the mid-40s. Thermometers are expected to rebound into the mid-60s this afternoon under mostly sunny skies, while northwest winds stay light before picking up a bit by midday. It feels like spring by lunchtime, but gardeners and anyone with tender outdoor plants should be warned: the warmth does not stick around tonight.
Frost Tonight, Rain Wednesday
A Frost Advisory covered outlying spots through 8 a.m. this morning, and now the National Weather Service has a Freeze Watch posted from late Monday night into Tuesday morning (May 12) for parts of the I-80 corridor and other areas north of the city, where lows could reach or slip below 32°F. Showers and thunderstorms are forecast to move back in late Tuesday night into Wednesday, with the most active period expected Wednesday morning through early afternoon. Forecasters are calling for highs near 70°F and southwest winds gusting into the mid-20s, according to the National Weather Service in Pittsburgh.
How To Prepare
Cover or bring inside potted and sensitive plants tonight, and disconnect outdoor hoses if you can. Plan for a few extra minutes on early-morning drives in low-lying neighborhoods where frost may linger. On Wednesday, expect wet roads and gusty winds, so secure lightweight patio furniture and be ready for slower commutes through the morning and midday. For background on this stretch of chilly mornings and the coming warmup, see our earlier report on the Steel City sunrise chill.
