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Mars, PA Weather Forecast

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Mars, PA Weather Forecast

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Mars PA weather - Mostly Clear - 67°F
Mostly Clear
67°F
Updated 1:37 pm
Feels Like 63°F
Humidity 70%
Wind VRB 5 mph
Barometer  30.1 in
Dew Point 57°F
Mars PA weather - Mostly Clear - 19°C
Mostly Clear
19°C
Updated 1:37 pm
Feels Like 17°C
Humidity 70%
Wind VRB 8 km/h
Barometer  101.9 kPa
Dew Point 14°C
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Mars Weather Forecast

THIS AFTERNOON TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT
Mars, PA Weather - This Afternoon Partly Sunny Mars, PA Weather - Tonight Patchy Fog Mars, PA Weather - Wednesday Patchy Fog Mars, PA Weather - Wednesday Night Chance Of Showers Mars, PA Weather - Thursday Mostly Cloudy Mars, PA Weather - Thursday Night Partly Cloudy Mars, PA Weather - Friday Showers Mars, PA Weather - Friday Night Chance Of Showers Mars, PA Weather - Saturday Partly Cloudy Mars, PA Weather - Saturday Night Chance Of Showers Mars, PA Weather - Sunday Chance Of Showers Mars, PA Weather - Sunday Night Partly Cloudy
Partly Sunny Patchy Fog Patchy Fog Chance of Showers Mostly Cloudy Partly Cloudy Showers Chance of Showers Partly Cloudy Chance of Showers Chance of Showers Partly Cloudy
Hi: 75°FHi: 24°C
 Lo: 55°FLo: 13°C Hi: 75°FHi: 24°C
 Lo: 61°FLo: 16°C Hi: 79°FHi: 26°C
 Lo: 65°FLo: 18°C Hi: 75°FHi: 24°C
 Lo: 49°FLo: 9°C Hi: 69°FHi: 21°C
 Lo: 49°FLo: 9°C Hi: 69°FHi: 21°C
 Lo: 45°FLo: 7°C
POP: 20% POP: 90% POP: 90% POP: 30% POP: 30%
POP = Probability of Precipitation.
Weather Outlook Updated: 1208 PM EDT Tue Sep 29 2026 Mars, PA Weather - WeatherWorld.com

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Mars Forecast Discussion

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Issued: 100 PM EDT Tue Sep 29 2026

Key Messages

1) Mainly dry through Thursday, before shower chances return with a Friday cold front

2) Cooler with periodic shower chances for the upcoming weekend


Discussion

... KEY MESSAGE 1... A ridge of high pressure is expected to maintain dry weather for much of the area through Thursday. The exception is Wednesday night, where a weak crossing shortwave and warm advection could result in a few showers north of Pittsburgh. The ridge should strengthen again on Thursday ahead of an approaching tro...