Lewis Run, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lewis Run, a borough in Mckean County, Pennsylvania.
Tonight
46°F
Areas Of Fog
Areas of fog after 11pm. Mostly cloudy, with a low around 46. Northeast wind 1 to 5 mph.
7-day forecast for Lewis Run
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Areas Of Fog | 1 to 5 mph NE | 1% |
| Saturday | 69°F | Patchy Fog then Partly Sunny | 3 mph SE | 5% |
| Saturday Night | 54°F | Showers And Thunderstorms | 6 mph SE | 86% |
| Sunday | 68°F | Showers And Thunderstorms | 6 mph SW | 91% |
| Sunday Night | 46°F | Chance Rain Showers | 8 mph NE | 53% |
| Monday | 63°F | Mostly Cloudy then Slight Chance Rain Showers | 9 mph NE | 17% |
| Monday Night | 44°F | Chance Rain Showers | 10 mph E | 48% |
| Tuesday | 60°F | Chance Rain Showers | 9 mph E | 48% |
| Tuesday Night | 42°F | Chance Rain Showers | 10 to 15 mph E | 54% |
| Wednesday | 58°F | Chance Rain Showers | 9 to 14 mph SE | 54% |
| Wednesday Night | 43°F | Chance Showers And Thunderstorms | 9 to 13 mph SE | 52% |
| Thursday | 60°F | Chance Rain Showers | 8 mph E | 52% |
| Thursday Night | 44°F | Chance Showers And Thunderstorms | 3 to 7 mph NE | 43% |
| Friday | 66°F | Partly Sunny | 3 to 7 mph NE | 14% |
Forecast source: National Weather Service (api.weather.gov) for Lewis Run (41.868, -78.654). Updated through the day.
Growing snapshot for Lewis Run
Last spring frost
May 18
First fall frost
Oct 4
Growing season
140 days
Hardiness zone
5b
More local growing data for Lewis Run: nearby ZIP 16725 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Bradford
Eldred
Foster Brook
Kane
Mount Jewett
Port Allegany
Rew
Smethport
University of Pittsburgh Bradford
Climate data from the nearest NOAA station, Bradford 4Sw Rsch 5, Pa (2.7 mi from Lewis Run). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.