Lancaster Area Forecast

DISCUSSION

The first official heatwave of the year will bake the mid-Atlantic region this week. A sprawling, Jet Stream ridge over the eastern Unites States will be the culprit for the extreme heat and humidity. High temperatures are expected to be in the 90s across the Lower Susquehanna Valley through the upcoming weekend, and dewpoints should be in the 60s through Thursday. There will essentially be no chance of rain until Saturday or Sunday, and mostly sunny skies will accompany the sweltering conditions. Heat indices should top out between 95-100°F this afternoon, in the low 90s on Wednesday, and low-to-mid 90s Thursday. A Heat Advisory is now in effect through 8 p.m. Friday. To mitigate the risk of contracting heat-related illnesses, drink plenty of fluids, minimize time in the sun, and take frequent breaks from the heat in an air-conditioned room or building. Wear light-colored, loose-fitting clothing, and avoid foods high in sodium. Never leave children or pets unattended in vehicles. The internal temperature of a car can reach dangerous levels in a matter of minutes on a 90-95°F day.

*** Special Weather Discussion issued every Monday and Thursday ***
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This afternoon:   Hot and humid with sunshine and patchy clouds.
                  High: 91-95
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Tonight:          Mainly clear, warm, and muggy.
                  Low: 66-70
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Wednesday:        Hot but not as humid with sunshine and a few high clouds.
                  High: 88-92
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Wednesday Night:  Mainly clear, warm, and muggy.
                  Low: 64-68
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Thursday:         Mostly sunny, hot, and humid.
                  High: 90-94
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         Tuesday, June 18, 2024 at 12:59 PM.
           by:  Meteorologist Kyle Elliott

For additional weather and climate data visit the Millersville University Weather Information Center
(Note: Forecasts are issued three times daily (weekdays) and on some weekends and holidays.)