Mercer, PA Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Mercer, PA.

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Current Conditions — Mercer, PA

YOUNGSTOWN (KYNG)

Cloudy

57.2 F
Humidity:94%
Wind Speed: 10.4 mph
Barometer:29.78 in
Dewpoint:55.4 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 25 2026, 10:30 AM EDT
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5-Day Forecast — Mercer, PA

Saturday

High 64 °F
Rain Showers
Saturday
Night
Low 44 °F
Overcast
Sunday

High 66 °F
Mostly Cloudy
Sunday
Night
Low 44 °F
Partly Sunny
Monday

High 73 °F
Mostly Sunny
Monday
Night
Low 50 °F
Chance of Showers
Tuesday

High 69 °F
T-storms
Tuesday
Night
Low 50 °F
Chance of Rain
Wednesday

High 64 °F
T-storms Likely

Detailed Forecast — Mercer, PA

Saturday
Rain Showers. High near 64°F. Wind 7 to 10 mph, with gusts as high as 17 mph.
Saturday Night
Overcast. Low around 44°F. Wind 6 to 8 mph, with gusts as high as 16 mph.
Sunday
Mostly Cloudy. High near 66°F. Wind 6 to 7 mph, with gusts as high as 14 mph.
Sunday Night
Partly Sunny. Low around 44°F. Wind 5 to 6 mph, with gusts as high as 13 mph.
Monday
Mostly Sunny. High near 73°F. Wind 6 to 9 mph, with gusts as high as 17 mph.
Monday Night
Chance of Showers. Low around 50°F. Wind 8 to 12 mph, with gusts as high as 22 mph.
Tuesday
Thunderstorms. High near 69°F. Wind around 13 mph, with gusts as high as 23 mph.
Tuesday Night
Chance of Rain. Low around 50°F. Wind 3 to 6 mph, with gusts as high as 15 mph.
Wednesday
Thunderstorms Likely. High near 64°F. Wind 3 to 9 mph, with gusts as high as 15 mph.
Wednesday Night
Rain Showers Likely. Low around 41°F. Wind 6 to 7 mph, with gusts as high as 15 mph.
Thursday
Mostly Cloudy. High near 59°F. Wind 7 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Slight Chance of Showers. Low around 37°F. Wind 3 to 6 mph, with gusts as high as 14 mph.
Friday
Chance of Rain Showers. High near 59°F. Wind 5 to 10 mph, with gusts as high as 16 mph.
PA Radar
Current Radar • PA
Day 1 Outlook • April 25, 2026

Observation History — Mercer, PA

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
10:30 AM EDT 10.4 10.00 Cloudy -- 57.2 55.4 94% NA NA 29.78 1008.5
10:25 AM EDT 10.4 10.00 Cloudy -- 57.2 57.2 100% NA NA 29.78 1008.5
10:20 AM EDT 10.4 10.00 Cloudy -- 57.2 55.4 94% NA NA 29.78 1008.5
10:15 AM EDT 9.2 10.00 Cloudy -- 57.2 57.2 100% NA NA 29.77 1008.1
10:05 AM EDT 10.00 Cloudy -- 57.2 57.2 100% NA NA 29.77 1008.1
09:55 AM EDT 10.00 Cloudy -- 59.0 57.2 94% NA NA 29.77 1008.1
09:50 AM EDT G 18.4 3.00 Fog/Mist -- 59.0 57.2 94% NA NA 29.77 1008.1
09:45 AM EDT 2.00 Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
09:40 AM EDT 10.4 2.00 Light Rain and Fog/Mist -- 60.8 57.2 88% NA NA 29.76 1007.8
09:30 AM EDT SW 11.5 G 18.4 2.00 Light Rain and Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
09:20 AM EDT S 5.7 2.00 Light Rain and Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
09:15 AM EDT S 6.9 2.00 Light Rain and Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
09:10 AM EDT S 5.7 2.00 Light Rain and Fog/Mist -- 59.0 59.0 100% NA NA 29.76 1007.8
09:05 AM EDT S 4.6 2.00 Light Rain and Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
09:00 AM EDT S 5.7 2.00 Light Rain and Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
08:50 AM EDT S 5.7 2.00 Light Rain and Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
08:45 AM EDT S 6.9 1.50 Light Rain and Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
08:40 AM EDT S 5.7 1.50 Light Rain and Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
08:35 AM EDT S 6.9 1.50 Light Rain and Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
08:30 AM EDT S 5.7 1.50 Light Rain and Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
08:25 AM EDT S 5.7 1.50 Light Rain and Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
08:20 AM EDT S 5.7 1.50 Light Rain and Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
08:05 AM EDT S 4.6 1.50 Light Rain and Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8
08:00 AM EDT 4.6 3.00 Fog/Mist -- 59.0 57.2 94% NA NA 29.76 1007.8

Regional Weather Observation

YOUNGSTOWN (KYNG)

Cloudy
57.2 F

MEADVILLE (KGKJ)

Light Rain
53.6 F

NEW CASTLE MUNI (KUCP)

Light Rain
60.8 F

ASHTABULA (KHZY)

Fog
44.6 F

(KFKL)


F

RAVENA/PORTAGE (KPOV)

Fog/Mist
52.3 F
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