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Harrisville Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY |
 |  |  | | | | | | | |  | |
| Mostly Clear | Sunny | Partly Cloudy | Sunny | Mostly Clear | Sunny | Clear | Clear | Sunny | Partly Cloudy | Partly Cloudy | Mostly Sunny |
| Lo: 40°FLo: 4°C | Hi: 69°FHi: 21°C | Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Hi: 69°FHi: 21°C Lo: 39°FLo: 4°C | Hi: 69°FHi: 21°C Lo: 39°FLo: 4°C | Hi: 69°FHi: 21°C | Hi: 70°FHi: 21°C Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 448 PM EDT Tue Oct 20 2026 
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Issued: 844 PM EDT Tue Oct 20 2026
Key Messages
1) High pressure ruling the roost through the weekend will continue to provide extended dry weather, with near seasonable daytime temperatures, while chilly overnights with patchy frost potential and river valley steam fog.
Discussion
... KEY MESSAGE 1...
843 PM Update... A Frost Advisory has been issued for early Wednesday morning as dew points have fallen this afternoon and failed to recover properly across northern West Virginia. Under clear skies and calm winds temperatures will eas...