Forecast for Adams County - Tuesday, June 9, 2026

TODAY: Partly sunny this morning, then the clouds show up like that one friend who “might” make it to the barbecue. Mostly cloudy by afternoon. Highs in the lower 80s. South winds 5 to 10 mph. Basically the atmosphere’s warm-up act — it’s stretching, getting limber, and eyeing the humidity controls for later this week. If you’ve got outdoor plans, you’re fine. If your hair hates humidity, start negotiating now.

TONIGHT: Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 60s. South winds 5 to 10 mph. Chance of rain 50 percent. The kind of night where you leave the windows open and roll the dice. Might get a free white-noise machine from the sky around 2am, might not. Your lawn won’t complain either way.

WEDNESDAY: A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Very warm. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent. This is the warm front’s grand entrance — kicks the door open, cranks the thermostat, and starts passing out dewpoints like free samples at Sam’s Club. That 5-14% severe wind risk we saw means a stray gusty storm is on the table. Don’t leave the trampoline untethered unless you want to donate it to Franklin County.

WEDNESDAY NIGHT: A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Humid with lows in the upper 60s. Southwest winds 5 to 10 mph. Chance of rain 30 percent. The atmosphere can’t decide if it wants to party or go to bed. Either way, it’s sticky. Your AC just filed for overtime.

THURSDAY: Partly sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs in the lower 90s. West winds 5 to 10 mph. Chance of rain 50 percent. And here it is — the first real summer slap of 2026. Air you wear. Heat index flirting with the upper 90s. Marginal severe risk again, so if a storm pops, it could have an attitude. Hydrate like you’re getting paid for it.

Bottom Line for Adams County: Tuesday you get one last day of “reasonable.” By Wednesday the humidity moves in and unpacks its bags. Thursday we go full sauna with 90s and storm chances. The severe risk Wed-Thu is low but not zero — damaging winds are the main threat if anything gets organized. Sleep with the AC on, charge your phone, and maybe keep an eye on that radar if you’re out around Gettysburg after lunch the next couple days.