Lemont, PA Weather & Growing Conditions
Tonight
48°F
Mostly Clear
Mostly clear, with a low around 48. Southeast wind 2 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Mostly Clear | 2 to 8 mph SE | 0% |
| Wednesday | 70°F | Mostly Sunny | 1 to 10 mph S | 0% |
| Wednesday Night | 58°F | Mostly Cloudy then Rain Showers | 15 mph S | 95% |
| Thursday | 69°F | Rain Showers | 6 to 13 mph SW | 78% |
| Thursday Night | 50°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 6 mph W | 20% |
| Friday | 64°F | Chance Rain Showers | 3 mph W | 38% |
| Friday Night | 44°F | Slight Chance Rain Showers | 3 mph NW | 21% |
| Saturday | 56°F | Slight Chance Rain Showers | 1 to 10 mph NW | 24% |
| Saturday Night | 37°F | Slight Chance Rain Showers then Partly Cloudy | 2 to 7 mph NW | 22% |
| Sunday | 54°F | Mostly Sunny | 2 to 8 mph W | 11% |
| Sunday Night | 36°F | Slight Chance Rain Showers | 7 mph W | 19% |
| Monday | 54°F | Slight Chance Rain Showers | 7 to 14 mph W | 24% |
| Monday Night | 36°F | Slight Chance Rain Showers then Partly Cloudy | 8 mph W | 23% |
| Tuesday | 57°F | Mostly Sunny | 7 to 15 mph W | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lemont, PA
Last spring frost
Apr 20
First fall frost
Oct 26
Growing season
187 days
Hardiness zone
6b
Explore more for Lemont, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, State College, Pa (3.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.