Mars, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mars, a borough in Butler County, Pennsylvania.
Tonight
56°F
Partly Cloudy
Partly cloudy, with a low around 56. Northeast wind around 7 mph.
7-day forecast for Mars
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Partly Cloudy | 7 mph NE | 5% |
| Saturday | 77°F | Partly Sunny | 7 mph E | 7% |
| Saturday Night | 63°F | Mostly Cloudy then Showers And Thunderstorms Likely | 6 mph SE | 68% |
| Sunday | 76°F | Showers And Thunderstorms | 8 mph SW | 94% |
| Sunday Night | 57°F | Showers And Thunderstorms | 9 mph N | 94% |
| Monday | 69°F | Chance Rain Showers | 12 mph NE | 30% |
| Monday Night | 55°F | Showers And Thunderstorms Likely | 10 to 14 mph E | 56% |
| Tuesday | 65°F | Showers And Thunderstorms Likely | 14 mph E | 66% |
| Tuesday Night | 53°F | Showers And Thunderstorms Likely | 16 mph E | 65% |
| Wednesday | 63°F | Showers And Thunderstorms Likely | 15 mph E | 64% |
| Wednesday Night | 52°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 51% |
| Thursday | 65°F | Chance Rain Showers | 8 to 12 mph E | 41% |
| Thursday Night | 51°F | Slight Chance Rain Showers | 5 to 8 mph NE | 19% |
| Friday | 69°F | Slight Chance Rain Showers then Partly Sunny | 8 mph N | 15% |
Forecast source: National Weather Service (api.weather.gov) for Mars (40.697, -80.014). Updated through the day.
Growing snapshot for Mars
Last spring frost
May 7
First fall frost
Oct 14
Growing season
159 days
Hardiness zone
6b
More local growing data for Mars: nearby ZIP 16046 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Barkeyville
Boyers
Bruin
Butler
Callery
Cherry Valley
Chicora
Connoquenessing
East Butler
Eau Claire
Evans City
Fairview
Fenelton
Forestville
Harlansburg
Harmony
Harrisville
Homeacre-Lyndora
Karns City
Lake Arthur Estates
Meadowood
Meridian
Nixon
North Washington
Oak Hills
Petrolia
Portersville
Prospect
Renfrew
Saxonburg
Climate data from the nearest NOAA station, Butler 2 Sw, Pa (11.1 mi from Mars). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.