Meridian, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Meridian, a community in Butler County, Pennsylvania.
Tonight
63°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then showers and thunderstorms. Mostly cloudy, with a low around 63. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Meridian
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Chance Showers And Thunderstorms | 5 mph S | 80% |
| Sunday | 76°F | Showers And Thunderstorms | 5 to 8 mph SW | 97% |
| Sunday Night | 52°F | Chance Showers And Thunderstorms | 9 mph N | 28% |
| Monday | 69°F | Chance Rain Showers | 10 mph NE | 29% |
| Monday Night | 51°F | Chance Rain Showers | 8 to 13 mph E | 53% |
| Tuesday | 64°F | Rain Showers Likely | 14 mph E | 55% |
| Tuesday Night | 50°F | Rain Showers Likely | 15 mph E | 68% |
| Wednesday | 62°F | Rain Showers Likely | 15 mph E | 68% |
| Wednesday Night | 49°F | Chance Rain Showers | 10 to 14 mph E | 51% |
| Thursday | 64°F | Chance Rain Showers | 8 to 12 mph E | 51% |
| Thursday Night | 48°F | Slight Chance Rain Showers | 5 to 8 mph E | 15% |
| Friday | 69°F | Partly Sunny | 7 mph NE | 13% |
| Friday Night | 48°F | Partly Cloudy | 7 mph NE | 11% |
| Saturday | 70°F | Mostly Sunny | 8 mph N | 9% |
Forecast source: National Weather Service (api.weather.gov) for Meridian (40.853, -79.955). Updated through the day.
Growing snapshot for Meridian
Last spring frost
May 7
First fall frost
Oct 14
Growing season
159 days
Hardiness zone
6b
More local growing data for Meridian: nearby ZIP 16045 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Butler 2 Sw, Pa (0.8 mi from Meridian). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.