Chambersburg will see warm temperatures and possible severe thunderstorms Friday before a sharp cooldown this weekend.
Today: Friday, October 16
Expect clouds giving way to some sunshine, with a high near 84°F. Showers and thunderstorms become more likely after 3 p.m., with a 60% chance of rain. Winds could gust to 25 mph outside thunderstorms. Showers may linger into early evening before temperatures fall to around 45°F overnight.
Tomorrow: Saturday, October 17
Clouds will gradually clear, with a much cooler high near 54°F. North winds could gust to 24 mph. Clear skies Saturday night will allow temperatures to drop to around 34°F, with frost developing after 2 a.m.
7-Day Forecast
| Day | Forecast | High | Overnight low |
|---|---|---|---|
| Friday, Oct. 16 | Afternoon showers and thunderstorms likely | 84°F | 45°F |
| Saturday, Oct. 17 | Clearing skies; breezy and cooler | 54°F | 34°F |
| Sunday, Oct. 18 | Morning frost, then sunny | 59°F | 37°F |
| Monday, Oct. 19 | Sunny | 63°F | 40°F |
| Tuesday, Oct. 20 | Mostly sunny | 67°F | 44°F |
| Wednesday, Oct. 21 | Sunny | 67°F | 42°F |
| Thursday, Oct. 22 | Sunny | 65°F | Not yet available |
Temperatures are for Chambersburg. Conditions may vary across Franklin County.
Weather Alerts and Concerns
Friday morning Hazardous Weather Outlook includes Franklin County in an area where severe thunderstorms could produce damaging winds of 60 mph or greater this afternoon and evening. An isolated tornado is also possible. Keep weather alerts enabled and monitor conditions before outdoor activities.
Widespread frost is forecast early Sunday morning. Protect sensitive outdoor plants before temperatures drop Saturday night.
