According to AccuWeather meteorologists, a brief respite is in store for those weary of the persistently high humidity and scorching temperatures in the Northeast. Since mid-June, the mid-Atlantic, central Appalachians, and southern New England have experienced elevated humidity levels, providing only occasional relief for outdoor activities. While New England has seen a slightly more favorable situation with intermittent breaks from the humidity, the broader region has been lacking in comfortable conditions for weeks.
Meteorologists are monitoring a significant mass of cooler, less humid air that was situated over the northern Plains as of midweek. Nighttime temperatures dropped into the 50s and 60s from the Dakotas to Minnesota on Tuesday, and the jet stream is expected to guide this refreshing air mass toward the Northeast by week’s end. As the cool air moves eastward, it will be met with strong mid-July sunshine, especially by the time it reaches the Great Lakes on Friday and the Northeast on Saturday.
Despite highs remaining primarily in the 80s for the Northeast, the reduced humidity levels and potential breeze may create a cooler perception, particularly in shaded areas on Saturday. The coolest temperatures in weeks are anticipated on Friday night from the eastern Great Lakes to the central Appalachians, spreading to New England and the coastal mid-Atlantic on Saturday night. Overnight lows are expected to range from the 50s to near 70 in these regions.
The decrease in humidity and temperature will temporarily lessen the risk of flooding downpours. However, the relief may not be as noticeable in the Ohio Valley, southern Appalachians, and lower mid-Atlantic due to the track of the air mass. Residents in these areas may have to wait until later in the month or possibly August for a significant break from the heat and humidity.
While the cool down is expected to be short-lived, Saturday appears to offer the best opportunity for outdoor activities in dry conditions across the Northeast. As the weekend progresses, humidity levels are forecasted to rise, increasing the chances of showers, thunderstorms, and potential flash floods. For advanced, ad-free severe weather alerts, consider subscribing to Premium+ on the AccuWeather app.
