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Red Run Lake, PA Weather Forecast
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Red Run Lake Weather Forecast
| REST OF TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  | |  |  | |  | | | |  |  |
| Patchy Fog | Sunny | Patchy Fog | Chance of Showers | Chance of Showers | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Chance of T-Storm |
| Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C |
| POP: 50% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 130 AM EDT Fri Aug 21 2026 
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Red Run Lake Forecast Discussion
Issued: 154 AM EDT Fri Aug 21 2026
Key Messages
1) Areas of dense fog possible tonight.
2) An unsettled weekend will be bookended by fair weather Friday and early next week.
Discussion
... KEY MESSAGE 1: Areas of dense fog possible tonight.
Widespread rainfall today followed by clearing conditions, diminishing winds, and high pressure building in tonight should allow for formation of radiation fog primarily in the valleys. Some of the fog may become locally dense with vis 1/4 mi or less into early Friday ...