Rensselaer, N.Y. – Thursday’s heat and storms could slam Rensselaer County with a 99° heat index and morning thunderstorms as summer weather peaks.
According to the National Weather Service, showers and thunderstorms will likely roll in after 8 a.m. Thursday, July 17, with heavy rain possible during morning commutes. Highs will hit 91°F, and heat index values could top 99°F. South winds will pick up to 10 mph, adding to the steamy conditions. Residents are urged to avoid strenuous outdoor activity, stay hydrated, and limit midday travel.
Localized flooding could affect low-lying roads, including portions of Route 9 and Route 20 near East Greenbush and downtown Rensselaer. If thunder roars, move indoors—lightning strikes remain a top safety hazard. Storm activity is expected to taper off Thursday night, but scattered rain chances continue into early Friday.
Friday and Saturday will offer a break: mostly sunny skies with highs in the low-to-mid 80s and calmer conditions. Saturday night brings a 40% chance of showers, leading into another round of potential storms Sunday afternoon. Daytime highs stay in the mid-80s through early next week.
Looking ahead:
- Thursday, July 17: 91°F, heavy rain possible, 60% storm chance
- Friday, July 18: Mostly sunny, high 82°F
- Saturday, July 19: Mostly sunny early, PM showers possible
- Sunday, July 20: Showers/storms likely after 2 p.m., high 84°F
- Monday, July 21: Mostly sunny, high near 86°F
Stay weather-aware and watch for updated alerts if storm intensity increases.
