Flat Top, WV Weather Forecast

See tomorrow's forecast for Flat Top together with a reliable 5 day outlook featuring daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the Flat Top area and around Mercer county, West Virginia.
Updated: Thu Jul 16th 2026 9:45 AM EDT

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Flat Top, WV Weather – 7-16 – Sunny
85° / 65°
Sunny
Daytime highs will reach 85°F with lows dropping to 65°F in Flat Top, where it will be sunny. There's a very small chance of rainfall, only about 7%. Winds will be light at 6mph and gusts of 10.5mph at 6 PM. The humidity will be on the higher side, averaging about 74%, the maximum being 76% at 10 AM and 57% being its lowest at 7 PM. Barometric pressure is its highest of 30.07inHg at 10 AM, a lowest point of 29.97inHg at 5 PM with an avg 30.02inHg.
Flat Top, WV Weather – 7-17 – Sunny
91° / 68°

Weather Tomorrow

Sunny
In Flat Top, a sunny day is likely with a high near 91°F and a low around 68°F. Rainfall predicted to have a 58% chance with an estimated 0.11in. Winds will be light at 5mph and gusts of 7.6mph at 4 PM. The humidity will be on the higher side, averaging about 70%, the maximum being 98% at 11 PM and 36% being its lowest at 2 PM. Barometric pressure is its highest of 30.1inHg at 10 PM, a lowest point of 30inHg at 3 PM with an avg 30.05inHg.
Flat Top, WV Weather – 7-18 – Scattered Showers
78° / 67°
Scattered Showers
In Flat Top, on and off showers are set to occur with highs near 78°F and lows around 67°F. The chance of rain is 87% with an estimated 0.24in. Winds will be light at 10mph and gusts of 14.1mph at 3 PM. High humidity with average of 89% is anticipated, the maximum being 99% at 11 PM and 65% being its lowest at 11 AM. Barometric pressure is its highest of 30.09inHg at 12 AM, a lowest point of 29.89inHg at 9 PM with an avg 29.97inHg.
Flat Top, WV Weather – 7-19 – Scattered Showers
77° / 67°
Scattered Showers
In Flat Top, on and off showers are set to occur with highs near 77°F and lows around 67°F. The chance of rain is 80% with an estimated 0.13in. Wind will be moderate, blowing around 11mph on average and gusts of 14.6mph at 11 AM. High humidity with average of 85% is anticipated, the maximum being 99% at 3 AM and 62% being its lowest at 2 PM. Barometric pressure is its highest of 29.89inHg at 10 PM, a lowest point of 29.81inHg at 6 PM with an avg 29.85inHg.
Flat Top, WV Weather – 7-20 – Sunny
84° / 64°
Sunny
Bright and sunny conditions in Flat Top, with a high of 84°F and a low of 64°F. There might be light rainfall having a 17% chance with an estimated 0.01in. Winds will be light at 10mph and gusts of 13.5mph at 5 PM. The humidity will be on the higher side, averaging about 72%, the maximum being 98% at 2 AM and 36% being its lowest at 5 PM. Barometric pressure is its highest of 29.94inHg at 9 AM, a lowest point of 29.83inHg at 8 PM with an avg 29.89inHg.
Flat Top, WV Weather – 7-21 – Scattered Showers
77° / 59°
Scattered Showers
Flat Top may see passing showers, with daytime highs of 77°F and overnight lows near 59°F. The chance of rain is 83% with an estimated 0.29in. Wind will be moderate, blowing around 13mph on average and gusts of 17.1mph at 8 AM. High humidity with average of 90% is anticipated, the maximum being 98% at 5 PM and 72% being its lowest at 11 AM. Barometric pressure is its highest of 29.97inHg at 11 PM, a lowest point of 29.81inHg at 10 AM with an avg 29.85inHg.

Currently

Mist 69°F
30.2 inHg.
Barometer
93%
Humidity
NW 3.6 mph
Wind
Mist

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