WEDNESDAY, SEPTEMBER 19, 2018
A meandering frontal boundary will lift north today, bringing a return to hot humid conditions for southern parts of the state. The favored areas for scattered thunderstorms will be ahead of the front over Northern through Northeast Nebraska.
By Thursday a strong upper level trough will track through the Dakotas, dragging much cooler air south, with bands of thunderstorms tracking along the front. A few of those storms have to the potential to turn strong to severe during the late afternoon, early evening hours.
In the wake of that front, more autumn-like temperatures will be felt statewide, just in time for the official start of the autumn season Saturday evening.
WEDNESDAY: Mostly sunny with a 20% chance of showers and thunderstorms. Highs in the upper 80s to low 90s. South winds at 10 to 15 gusting to 25 mph.
TONIGHT: Mostly clear to partly cloudy with a 20% chance of thunderstorms. Lows in the upper 60s to low 70s. South winds at 10 to 15 mph.
THURSDAY: Variable clouds with a 60% chance for showers and thunderstorms afternoon and evening. Turning breezy and cooler with highs in the mid 80s to upper 80s. Southwests winds 15-25 mph.
FRIDAY: Partly to mostly sunny and much cooler. Highs in the mid 60s to around 70.