Bellevue, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bellevue, a borough in Allegheny County, Pennsylvania.
This Afternoon
79°F
Sunny
Sunny, with a high near 79. South wind around 2 mph.
7-day forecast for Bellevue
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Sunny | 2 mph S | 1% |
| Tonight | 54°F | Mostly Clear | 5 mph SE | 2% |
| Wednesday | 78°F | Partly Sunny | 3 to 10 mph S | 8% |
| Wednesday Night | 62°F | Light Rain | 9 mph S | 100% |
| Thursday | 71°F | Chance Light Rain then Mostly Sunny | 6 to 13 mph SW | 25% |
| Thursday Night | 49°F | Partly Cloudy | 0 to 5 mph SW | 3% |
| Friday | 66°F | Partly Sunny | 0 to 6 mph W | 11% |
| Friday Night | 46°F | Slight Chance Light Rain | 2 to 6 mph NW | 24% |
| Saturday | 57°F | Chance Light Rain | 6 to 12 mph W | 29% |
| Saturday Night | 40°F | Chance Light Rain then Mostly Cloudy | 3 to 8 mph W | 27% |
| Sunday | 57°F | Partly Sunny then Slight Chance Light Rain | 3 to 10 mph W | 16% |
| Sunday Night | 39°F | Slight Chance Light Rain | 8 mph W | 19% |
| Monday | 58°F | Chance Light Rain | 8 to 14 mph W | 28% |
| Monday Night | 39°F | Chance Light Rain then Partly Cloudy | 8 to 12 mph SW | 28% |
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
Nearby towns & communities
Allison Park
Arnold
Aspinwall
Avalon
Bairdford
Bakerstown
Baldwin
Bell Acres
Ben Avon
Ben Avon Heights
Bethel Park
Blaine Hill
Blawnox
Boston
Brackenridge
Braddock
Braddock Hills
Bradford Woods
Brentwood
Bridgeville
Buena Vista
Bunola
Carnegie
Carnot-Moon
Castle Shannon
Chalfant
Cheswick
Churchill
Clairton
Clinton
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 3, 2026.