Louisville Weather Today: Hour-By-Hour Forecast, Live Radar & Safety Tips

Louisville residents are bracing for a dramatic weather roller-coaster this week, with temperatures swinging nearly 40 degrees, the threat of severe thunderstorms, and a mid-week cold snap that could bring patchy frost. A summer-like Sunday sent thermometers soaring to the mid-80s, setting the stage for a potent cold front Sunday night. Forecasters at Weather.com warn that thunderstorms are likely as the front barrels through, and some storms could turn severe as gusty winds shift from the southwest to the north overnight. Behind the front, Monday afternoon highs will struggle to leave the low 50s—more than 30 degrees cooler than 24 hours earlier—under mostly cloudy skies. A brisk north wind will add an extra chill, and Monday night lows are forecast to dip into the upper 30s downtown and the low 30s in outlying suburbs, flirting with frost in the usual cold pockets. Tuesday begins a gradual rebound: sunshine returns and highs climb to the upper 50s. By Wednesday, warmer southerly flow pushes temperatures into the upper 60s, but another fast-moving system could trigger spotty afternoon showers. The late-week forecast flips the script again. Warm, humid air surges north on Thursday, driving highs to around 80 °F—nearly 15 degrees above average—and priming the atmosphere for another round of storms Thursday night. By Friday, a secondary cold front slashes daytime readings back to the 50s and ushers in crisp, dry air for the start of the weekend. What to watch: • Severe-weather timing: The best chance for damaging winds and isolated hail is Sunday evening through the pre-dawn hours of Monday, then again late Thursday. Keep weather radios and phone alerts on. • Frost risk: Sensitive plants may need protection Monday night and again Friday night as lows flirt with freezing in sheltered spots. • River levels: Rapid runoff from Sunday night storms could cause quick rises on smaller creeks; monitor local advisories if you live in flood-prone areas. Travel and event impacts: • Monday morning commuters should plan for wet roads and lingering wind gusts. • Mid-week outdoor practices will face much cooler conditions than last weekend—dress in layers. • Thursday evening events could be delayed or moved indoors if thunder rumbles. Bottom line: March is living up to its reputation as Louisville’s most unpredictable month. Stay weather-aware, bookmark a reliable forecast source, and be ready to shift from shorts to sweaters—and back again—over the next seven days.