Some clouds will come up from the southwest & in from the west-northwest tonight. This will result in skies turning partly cloudy. A few places in the south may turn mostly cloudy. These would be mid-level & low clouds.
Given the low-level moisture from the rainfall in Kentucky & the heavy rains from Beta south of there, some patchy fog is possible with some of those areas of low to very low clouds.
Lows tonight of 51-57 are likely.
Tomorrow looks good with skies clearing & highs 81-85 with southwest to south winds at 8-14 mph. Humidity will not be an issue with dew points will be pretty low in the afternoon at 51-57.
After 55-60 tomorrow night, Saturday looks like a windy day with hazy sunshine & cumulus clouds developing over the sky. Highs of 84-90 are likely, but the humidity will remain pretty low. Dew points will run 56-61.
With the winds & dry, curing crops, grass & leaf litter, brush fire danger may be elevated.
Any storms will be well north of the area Saturday with some severe weather risk from eastern Minnesota, through northern Wisconsin.
South-southwest winds may gust 32-40 mph at times Saturday afternoon-evening (sustained at 15-25 mph). Gusts of 40-50 mph are possible in northern Illinois & southern Wisconsin.
On the GFS projected IR satellite, you can see an at least broken line of storms from Michigan to Oklahoma Sunday late afternoon-evening.
Strong mid & upper level winds with a jet streak will result in organized storms, but cold pocket aloft will be displaced northwest of the storms & ML CAPE here looks lackluster.
That said, an isolated severe storm cannot be ruled out, but at this point, lack of good lapse rate & CAPE precludes more robust severe weather risk in a strongly sheared environment.
Otherwise, Sunday looks windy & warm with highs 83-88 with southwest winds gusting 30-40 mph. Dew points will rise to 59-64. So, it will feel a bit more humid, but still not bad.
Much of the truly tropical air with much higher dew points will get scoured & taken away with the remnants of Beta.
At this point, it appears after a few showers early Monday, that we will be in a bit of a dry slot with sunshine & strong west winds & lowering dew points to the 40s behind the front. Highs should reach the 70s to near 80 Monday.
However, as cold upper low over Minnesota pivots southeast & then eastward, multiple shortwaves & a couple of surface cold fronts will pass. This will result in continued windy conditions & progressively cooler weather with grayer skies.
A scattered of showers & t'showers are likely Monday night through Tuesday & again Wednesday. Isolated small hail or graupal is possible. Isolated wind gusts +45 mph are possible with showers & t'showers too, as rain falls through layer of dry air.
Any rainfall will become isolated by Thursday & driven by daytime heating.
By Tuesday, highs will run 65-72, by Wednesday, 61-68 & Thursday, 57-65. Lows will drop to the 40s by Tuesday & Wednesday nights & 39-45 Thursday night. Underneath the cold upper low, how about 40s with rain & graupal showers in Michigan. South Bend, Indiana may only see around 52 for a high!
After highs on Friday of 60-66 with lots of sunshine, lows a week from this Friday night-Saturday morning may run 35-40. Freezing conditions are likely from northwestern Illinois, west & northwestward.
Much of the northern half of the viewing area has seen their first 40. The southern half has not. We normally see the first 40 in the southern half September 29-October 2.
This will be about right on cue.
The first 36 in the occurs around October 1-6 for the viewing area as a whole. Multiple locations will see 36. This will be pretty close to normal.
The warm upper ridge in the West may work eastward after the cool snap, resulting in some nice, very warm, dry weather for a while. however, strong cold front may bring 29-35 around October 17.
The Gulf Coast & Florida peninsula & then up the East Coast will need to be monitored for hurricane activity in the October 7-21 time frame. Up to two hurricanes may originate in the Yucatan area & be pulled up into the U.S.