We’re already about a third of the way through September but fall temperatures, which usually arrive later in the month, seem to have started early this year.
So cool that this is the coolest start to September we’ve seen in recent years with average temperatures so far running about 7.5 degrees below normal.
Our cooler than average trend will continue today with afternoon temperatures topping out at around 72/74 degrees. Normally, we should be in the upper 70s for highs.
Despite the cool temperatures, we will again be under the influence of high pressure and that will keep skies mostly sunny today. High clouds from the extreme outer fringes of Tropical Storm Irma will begin to stream in as that system makes its way out of Florida and north into Georgia this afternoon.
Those high clouds will gradually increase overnight but we will remain dry with temperatures a bit warmer than previous nights dipping to the low 50s by sunrise Tuesday.
TS Irma will continue to weaken as it travels into the Tennessee Valley on Tuesday becoming mostly just a remnant low pressure system. Rain ill spread south to north as the low advances but dry air in place overhead will initially make it difficult for showers to get started in east-central Ohio.
Moisture will eventually overcome the dry air and our chances for rain will increase late in the day Tuesday and Tuesday night as this thing meanders around south and west of us. It won’t bring a widespread rain event to the Valley and most of us will see scattered occasional showers. With the extra clouds around on Tuesday, temperatures will be slightly cooler than today.
Wednesday and Thursday will be the days where rain is more likely here in the Valley as the remnant low continues to wobble around. Temperatures will warm to about average on Wednesday but cool off again to the low 70s by Thursday.
Chances for showers will be less on Friday as they system slowly begins to track east toward the Atlantic Coast but our weather should gradually improve as Friday wears on. Chances for rain diminish through the day ending Friday evening.
Although I can’t guarantee it at this point, conditions look to be mostly dry for Friday night high school football.
HOW MUCH RAIN WILL WE SEE?
Irma remnants will not be a huge rain producer here – although we can use some rain at this point. Rain totals TUESDAY THROUGH FRIDAY shouldn’t amount to much more than a half to three-quarters of an inch.
Remember, though, this will not come all at once and the rain will be spread out over several days. Flooding will not be an issue.
A ridge of high pressure looks to build in for the weekend. Should that be the case, we’ll be in store for another weekend of sunshine and dry weather. Temperatures are also slated to warm over the weekend. Upper 70s will be possible on Saturday with temperatures to around 80 on Sunday.