Eau Claire, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Eau Claire, a borough in Butler County, Pennsylvania.
This Afternoon
75°F
Mostly Sunny
Mostly sunny, with a high near 75. North wind around 7 mph.
7-day forecast for Eau Claire
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Mostly Sunny | 7 mph N | 10% |
| Tonight | 54°F | Partly Cloudy | 6 mph NE | 10% |
| Saturday | 74°F | Partly Sunny then Slight Chance Rain Showers | 7 mph E | 16% |
| Saturday Night | 61°F | Mostly Cloudy then Showers And Thunderstorms | 3 to 7 mph SE | 78% |
| Sunday | 74°F | Showers And Thunderstorms | 8 mph SW | 94% |
| Sunday Night | 54°F | Rain Showers Likely | 7 to 10 mph N | 67% |
| Monday | 68°F | Slight Chance Rain Showers | 10 mph NE | 23% |
| Monday Night | 52°F | Chance Rain Showers | 9 to 13 mph E | 53% |
| Tuesday | 64°F | Rain Showers Likely | 14 mph E | 60% |
| Tuesday Night | 50°F | Showers And Thunderstorms Likely | 16 mph E | 62% |
| Wednesday | 62°F | Rain Showers Likely | 15 mph E | 62% |
| Wednesday Night | 50°F | Chance Showers And Thunderstorms | 15 mph E | 53% |
| Thursday | 63°F | Chance Rain Showers | 8 to 13 mph E | 43% |
| Thursday Night | 50°F | Slight Chance Rain Showers | 7 mph E | 20% |
Forecast source: National Weather Service (api.weather.gov) for Eau Claire (41.137, -79.799). Updated through the day.
Growing snapshot for Eau Claire
Last spring frost
May 7
First fall frost
Oct 14
Growing season
158 days
Hardiness zone
6a
More local growing data for Eau Claire: nearby ZIP 16030 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Barkeyville
Boyers
Bruin
Butler
Callery
Cherry Valley
Chicora
Connoquenessing
East Butler
Evans City
Fairview
Fenelton
Forestville
Harlansburg
Harmony
Harrisville
Homeacre-Lyndora
Karns City
Lake Arthur Estates
Mars
Meadowood
Meridian
Nixon
North Washington
Oak Hills
Petrolia
Portersville
Prospect
Renfrew
Saxonburg
Climate data from the nearest NOAA station, Slippery Rock 1 Ssw, Pa (14.7 mi from Eau Claire). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.