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
77°F
Slight Chance Light Rain
A slight chance of rain before 4pm. Partly sunny. High near 77, with temperatures falling to around 71 in the afternoon. South wind 8 to 12 mph. Chance of precipitation is 20%.
7-day forecast for Eau Claire
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Slight Chance Light Rain | 8 to 12 mph S | 18% |
| Tonight | 58°F | Light Rain | 7 to 12 mph S | 84% |
| Thursday | 67°F | Slight Chance Light Rain then Mostly Sunny | 7 to 13 mph SW | 21% |
| Thursday Night | 45°F | Mostly Cloudy | 6 mph SW | 1% |
| Friday | 59°F | Chance Light Rain | 5 to 8 mph W | 54% |
| Friday Night | 36°F | Chance Light Rain | 7 mph W | 54% |
| Saturday | 51°F | Light Rain Likely | 8 to 14 mph W | 55% |
| Saturday Night | 33°F | Light Rain Likely | 9 mph W | 55% |
| Sunday | 54°F | Partly Sunny | 8 to 13 mph W | 8% |
| Sunday Night | 32°F | Slight Chance Light Rain | 9 mph W | 15% |
| Monday | 55°F | Slight Chance Light Rain then Mostly Sunny | 8 to 13 mph W | 15% |
| Monday Night | 33°F | Mostly Clear | 6 to 9 mph W | 5% |
| Tuesday | 60°F | Mostly Sunny | 8 to 13 mph W | 3% |
| Tuesday Night | 32°F | Partly Cloudy | 6 mph W | 2% |
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
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East Butler
Evans City
Fairview
Fenelton
Forestville
Harlansburg
Harmony
Harrisville
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Karns City
Lake Arthur Estates
Mars
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North Washington
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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 Nov 4, 2026.