Local weather forecast

Weather in Mercer, PA

Updated 2026-08-11 12:15 local time · ZIP codes 16137

Cloudy
Now70°F

Cloudy

High / Low82° / 66°
Rain chance84%
Wind10 mph
Weather alerts

Active alerts

2
Flood Watch issued August 11 at 7:06AM EDT until August 12 at 8:00AM EDT by NWS Pittsburgh PA

Repetitive rounds of precipitation through Tuesday night will raise flash flood potential. * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of east central Ohio, including the following area, Columbiana and Pennsylvania, including the following areas, Allegheny, Beaver, Higher Elevations of Westmoreland and Westmoreland. * WHEN...Through Wednesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Additional rainfall through Tuesday night is expected to average from 1.0 to 1.5 inches across the watch area. However, there is the potential for isolated locations to receive an additional 2 to 3 inches. With the soil already saturated, such rain totals could create flash flooding conditions. - http://www.weather.gov/safety/flood

Safety instructions

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Flash Flood Warning issued August 11 at 7:33AM EDT until August 11 at 11:30AM EDT by NWS Pittsburgh PA

FFWPBZ The National Weather Service in Pittsburgh has issued a * Flash Flood Warning for... Carroll County in east central Ohio... Columbiana County in east central Ohio... Northeastern Tuscarawas County in east central Ohio... * Until 1130 AM EDT. * At 733 AM EDT, Doppler radar indicated thunderstorms producing heavy rain with more soon to arrive across the warned area. Between 0.5 and 1 inch of rain has fallen so far with an additional 1 to 3 inches possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... New Philadelphia, Dover, Salem, East Liverpool, Columbiana, East Palestine, Carrollton, Calcutta, Lisbon, Strasburg, Leetonia, New Waterford, Augusta, Salineville, Malvern, Bolivar, Mineral City, Hanoverton, Dellroy and Sherrodsville.

Safety instructions

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.

Hourly

Next hours

NowCloudy70°15% rain
1 PMPartly Cloudy78°7% rain
2 PMSunny82°4% rain
3 PMOvercast80°13% rain
4 PMPartly Cloudy80°7% rain
5 PMPatchy rain nearby77°20% rain
6 PMPatchy rain nearby77°83% rain
7 PMPatchy rain nearby76°87% rain
8 PMPatchy rain nearby71°86% rain
9 PMModerate rain at times69°85% rain
10 PMPatchy rain nearby68°52% rain
11 PMClear68°20% rain
Forecast

3-day weather forecast

Today2026-08-11
Patchy rain nearby
82° 66°Patchy rain nearby
Rain 84%Gust 12 mph
Tomorrow2026-08-12
Patchy rain nearby
79° 61°Patchy rain nearby
Rain 66%Gust 8 mph
Thursday2026-08-13
Patchy rain nearby
78° 64°Patchy rain nearby
Rain 79%Gust 6 mph
Conditions

Weather details

Feels like70°F
Humidity100%
Pressure30.00 inHg
Visibility10 mi
Wind10 mph WSW
Wind gusts11 mph
Precipitation0.00 in
UV index4
Daylight

Sunrise, sunset and moon

Sunrise06:26 AM
Sunset08:25 PM
Moonrise04:24 AM
Moon phaseNew Moon
Practical guide

Weather insights for today

Take an umbrella

Rain chance reaches about 87% over the next 12 hours.

Light layers should work

It feels like 70°F with winds near 10 mph.

Best window: 1 PM

78°F, 7% rain chance and 7 mph wind.

Use extra caution while driving

Visibility is around 10 mi; gusts may reach 18 mph.

Running conditions are less comfortable

Current temperature is 70°F, wind 10 mph, rain chance up to 87%.

Moderate UV protection recommended

UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.

Mercer weather today

Cloudy and 70°F in Mercer, PA. Today's high is 82°F with a 84% rain chance. Winds are around 10 mph with gusts near 11 mph. Relative humidity is 100%, pressure is 30.00 inHg, and visibility is about 10 miles.

Tonight and tomorrow in Mercer

Sunrise is at 06:26 AM and sunset is at 08:25 PM. Tomorrow's forecast calls for Patchy rain nearby with a high near 79°F and a low near 61°F. The maximum rain chance is 66%.

Nearby

Weather near Mercer

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