Harman US

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

WhenTempForecastWindPrecip
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

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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.