The National Weather Service in Wilmington has forecasted a shift toward cooler and drier air for the Columbus, Cincinnati, and Wilmington regions over the coming days. According to their latest update, the Ohio Valley can expect temperatures to hover near or just below normal, with a significant cloud cover persisting throughout today.
Northerly flows have introduced a decent amount of low stratus, which looks to stay put into the afternoon hours for most places. "Daytime temps will be considerably cooler than has been the case recently, with daytime highs only reaching into the mid 70s from WC through central OH to around 80 degrees near/S of the OH Rvr where some late-day peeks of sunshine will help temps rebound a bit more," states the discussion from the National Weather Service. Winds from the north will continue at about 10 knots during this time.
In the near term, the chance for isolated showers or sprinkles in the lower Scioto Valley and parts of central Ohio remains quite low, with most areas expected to remain dry through the day. As we roll into the evening and through Thursday, some spots near or north of Interstate 70 may still cling to a minor chance for precipitation, but again, the bulk of the region should keep dry. Overnight lows are forecasted to dip into the lower to mid-60s.
Looking ahead into the long term, chatter about a brief warmup on Friday with temperatures in the lower to upper 80s comes with an optimistic forecast for more periods of sunshine. However, "a notable air mass change" is anticipated to sweep through by Sunday, with high temperatures plunging into the 70s and possibly even upper 60s at the start of the following week. Humidity will also decrease significantly, providing a crisp feel to the air, as reported by the National Weather Service's long-term forecast.
Aviation-wise, mainly dry conditions and northerly flow around 10 knots are expected to continue, though MVFR/IFR ceilings could pose some challenges at least until Thursday. The latest NWS aviation discussion indicates that the cloud cover may be persistent, especially for northern sites, with some variability near Cincinnati and Wilmington after 18z. Pilots and travelers should be ready for potential visibility and ceiling fluctuations.
