Mars, PA Weather & Growing Conditions
This Afternoon
78°F
Sunny
Sunny. High near 78, with temperatures falling to around 71 in the afternoon. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Sunny | 5 mph S | 1% |
| Tonight | 53°F | Mostly Clear | 5 mph SE | 2% |
| Wednesday | 76°F | Partly Sunny | 5 to 9 mph SE | 9% |
| Wednesday Night | 60°F | Light Rain | 9 mph S | 100% |
| Thursday | 70°F | Chance Light Rain then Mostly Sunny | 7 to 12 mph SW | 29% |
| Thursday Night | 46°F | Partly Cloudy | 0 to 5 mph SW | 3% |
| Friday | 64°F | Partly Sunny | 0 to 6 mph W | 12% |
| Friday Night | 43°F | Chance Light Rain | 2 to 6 mph NW | 29% |
| Saturday | 55°F | Chance Light Rain | 6 to 10 mph W | 30% |
| Saturday Night | 36°F | Chance Light Rain then Mostly Cloudy | 3 to 7 mph W | 28% |
| Sunday | 55°F | Partly Sunny then Slight Chance Light Rain | 3 to 9 mph SW | 16% |
| Sunday Night | 34°F | Slight Chance Light Rain | 9 mph W | 20% |
| Monday | 56°F | Chance Light Rain | 9 to 14 mph W | 30% |
| Monday Night | 35°F | Chance Light Rain then Partly Cloudy | 7 to 10 mph SW | 30% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mars, PA
Last spring frost
May 7
First fall frost
Oct 14
Growing season
159 days
Hardiness zone
6b
Explore more for Mars, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Butler 2 Sw, Pa (11.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.