Bellevue, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bellevue, a borough in Allegheny County, Pennsylvania.
Today
76°F
Partly Sunny then Chance Light Rain
A chance of rain after 1pm. Partly sunny, with a high near 76. Southeast wind 6 to 10 mph. Chance of precipitation is 30%.
7-day forecast for Bellevue
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Partly Sunny then Chance Light Rain | 6 to 10 mph SE | 31% |
| Tonight | 62°F | Light Rain | 7 to 10 mph S | 95% |
| Thursday | 70°F | Slight Chance Light Rain then Mostly Sunny | 6 to 13 mph SW | 16% |
| Thursday Night | 49°F | Partly Cloudy | 1 to 5 mph SW | 1% |
| Friday | 64°F | Partly Sunny then Slight Chance Light Rain | 2 to 8 mph SW | 19% |
| Friday Night | 43°F | Chance Light Rain | 7 mph W | 33% |
| Saturday | 54°F | Chance Light Rain | 8 to 12 mph W | 30% |
| Saturday Night | 38°F | Slight Chance Light Rain | 5 to 9 mph W | 24% |
| Sunday | 56°F | Partly Sunny | 6 to 13 mph W | 6% |
| Sunday Night | 36°F | Partly Cloudy | 9 mph W | 5% |
| Monday | 57°F | Mostly Sunny | 7 to 13 mph W | 11% |
| Monday Night | 38°F | Mostly Clear | 8 mph SW | 8% |
| Tuesday | 61°F | Sunny | 9 to 14 mph SW | 3% |
| Tuesday Night | 37°F | Partly Cloudy | 2 to 8 mph W | 3% |
Forecast source: National Weather Service (api.weather.gov) for Bellevue (40.494, -80.055). Updated through the day.
Growing snapshot for Bellevue
Last spring frost
Apr 24
First fall frost
Oct 27
Growing season
186 days
Hardiness zone
6b
More local growing data for Bellevue: nearby ZIP 15202 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Emsworth L/D Ohio Rvr, Pa (0.9 mi from Bellevue). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.