A round of rain and thunderstorms is expected to move into the Kansas City area overnight, with the heaviest rainfall arriving Friday morning before conditions quickly turn hot and humid for the weekend, KMBC 9 reports. Friday is marked as a First Alert Weather Impact Day due to the potential for heavier rain, especially between 3 a.m. and noon.
Rain is expected to begin around 3 a.m. and continue through the commute, with periods of moderate to heavy rainfall that could slow drives. Showers and a few thunderstorms are forecast to continue through lunchtime, gradually tapering off in the afternoon. While severe weather is not anticipated, thunderstorms during the overnight hours may bring lightning. Rainfall totals of at least 1 inch are possible across much of the metro, with isolated locations seeing 2 inches or more, raising the risk of localized flooding in low-lying areas and on roads where water commonly collects.
Temperatures will be unusually cool Friday, with highs in the 70s, but the weekend swing is sharp. Saturday afternoon heat index values are expected to reach the triple digits, and Sunday and Monday are forecast to be the hottest, with heat index values approaching 110 degrees. With heat and humidity increasing the risk of heat-related illness for people and pets, outdoor time should include frequent hydration, regular breaks in shade or air conditioning, and less strenuous activity during peak heat.