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Lake Arthur, PA Weather Forecast
Lake Arthur, PA Weather Forecast Date: 1102 PM EDT Tue Aug 04 2026
The area/counties/county of: Butler, including the city of Butler.or toggle through each period.
Rest of Tonight... Mainly clear. Lows in the mid 60s. East winds around 5 mph.
Wednesday... Mostly sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. Southeast winds around 5 mph. Chance of rain 40%.
Wednesday Night... Mostly cloudy with a chance of showers and thunderstorms. Patchy fog after midnight. Humid with lows in the mid 60s. South winds around 5 mph. Chance of rain 50%.
Thursday... Mostly cloudy. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the mid 80s. Southwest winds around 5 mph. Chance of rain 70%.
Thursday Night... Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Humid with lows in the mid 60s. South winds around 5 mph. Chance of rain 70%.
Friday... Showers likely in the morning, then showers with thunderstorms likely in the afternoon. Highs in the lower 80s. Chance of rain 90%.
Friday Night... Showers with thunderstorms likely in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 90%.
Saturday... Mostly cloudy. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 60%.
Saturday Night... Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 60%.
Sunday... Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40%.
Sunday Night... A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 50%.
Monday... Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50%.
Monday Night... A chance of thunderstorms in the evening. Showers likely. Lows in the upper 60s. Chance of rain 70%.
POP = Probability of Precipitation
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