Click on button above to view PA Watches/Warnings/Special Wx Statements.

Mercer county, PA Weather and Climate Synopsis

To access other UK Agricultural Weather Center Pages use the pull-down menu below.

(Click image to zoom) or Click Here

36 Hr. Forecast Map
All Radar images NOAA/UKAWC
Satellite images from NOAA

Weather Summary Hourly Observations Nowcast Agricultural Weather Outlook
7 Day Forecast Medium & Long Range Outlook Almanac Historical Facts

US Weekly Rainfall Departure

US Weekly Temperature Departure
Also see:

A joint service of the UK Ag Weather Center and the National Weather Service.

National Weather Service State College PA
1030 PM EST Mon Feb 27 2017

Clouds will persist overnight as a weak disturbance approaches from 
the Ohio Valley. A few light rain showers are possible with low 
temperatures in the 30s statewide.

A developing southerly flow will bring even milder air into the 
region for Tuesday. There will be an increasing chance for showers 
from west to east through the day, as low pressure approaches from 
the Mississippi Valley. Some thunder is possible late in the day 
across the far west. High temperatures will range from the low 50s 
in north-central Pennsylvania to the low 60s across the valleys of 
the south.

National Ag. Weather Outlook, International Ag. Weather Summary
Current Surface Map, [2nd Source TWC]

Precision Agriculture Weather Forecast For MERCER County

For Your Farm PointAgCast...Click here.

Hourly Observations For MERCER county
1200 AM EST TUE FEB 28 2017

ERIE           CLOUDY    42  35  76 S13       30.24S                  
MEADVILLE      CLOUDY    40  35  83 VRB5      30.24R                  
FRANKLIN*      CLOUDY    39  34  81 S7        30.25F                  
NEW CASTLE     CLOUDY    38  37  97 S3        30.26S                  
BEAVER COUNTY  NOT AVBL                                               
BUTLER*        CLOUDY    39  36  87 E3        30.26F                  
PITTSBURGH INT CLOUDY    39  38  96 SE3       30.24F                  
PITTSBURGH     CLOUDY    41  37  86 SE3       30.24F                  
INDIANA*       CLOUDY    41  39  93 E5        30.29F                  
LATROBE        CLOUDY    37  37 100 CALM      30.27F FOG              
WASHINGTON CO* CLOUDY    34  34 100 CALM      30.26F VSB 1/2          

Current Temperatures, Dewpoint, RH, Wind, Surface 4-Panel

Current Agricultural Weather Conditions in Pennsylvania
Based on observations at 1200am EST, Tuesday February 28, 2017

Across Pennsylvania...temperatures are near 41 degrees west, near 38 degrees central, and near 47 degrees east. Current sky conditions are cloudy west, cloudy central, and mostly cloudy east. In the west, relative humidity is near 86%, and the dew point is near 37 degrees. In the central part of the state, relative humidity is near 88%, and the dew point is near 35 degrees. In the east, relative humidity is near 56%, and the dew point is near 32 degrees. Winds are coming from the southeast at 3 mph in the west, where conditions are favorable for spraying. Winds are calm in the central, where conditions are favorable for spraying. Winds are coming from the south at 5 mph in the east, where conditions are favorable for spraying. The livestock cold stress index is in the no stress category west, no stress category central, and no stress category east. Based on current available observations, the highest temperature is 47 degrees at Philadelphia. The lowest temperature is 37 degrees at Pottswotn, Latrobe, and Allentown.

Current NOWCAST not available:
Nowcasts are not issued routinely during fair weather. Only when
precipitation or other significant weather is occuring in this county will these
forecasts be issued. Currently, there is no short term forecast in effect.

All NWS Radars (In near-real time), Current Livestock Heat Stress Index (LSI), Current Wind Chill Map
Hazardous Weather Outlook For MERCER County,PA

338 AM EST Mon Feb 27 2017

 DAY ONE  Today and Tonight.

Hazardous weather is not expected at this time.

 DAYS TWO THROUGH SEVEN  Tuesday through Sunday.

Severe thunderstorms are possible Wednesday, with damaging winds
being the main threat. 


Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For MERCER County, PA
Issued at 1207 AM EST Tue Feb 28 2017

Mostly cloudy. Near steady temperature in the upper 30s. Southeast winds around 5 mph.

Cloudy. Showers likely
mainly in the afternoon. Mild. Highs in the upper 50s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.

mainly after midnight. Not as cool. Near steady temperature in the mid 50s. Temperature rising into the upper 50s after midnight. South winds 15 to 20 mph. Gusts up to 35 mph after midnight. Chance of rain 90 percent.

Showers with thunderstorms likely. Unseasonably warm with highs in the mid 60s. Temperature falling into the upper 50s in the afternoon. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 90 percent.

Cloudy. Rain showers likely with a chance of thunderstorms in the evening
then a chance of snow and rain showers after midnight. Little or no snow accumulation. Much colder with lows in the upper 20s. West winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation 60 percent.

Considerable cloudiness in the morning
then becoming partly sunny. A chance of snow showers. A chance of rain showers in the afternoon. Much colder with highs in the mid 30s. Chance of precipitation 40 percent.

Mostly cloudy. Snow showers likely
mainly after midnight. Little or no snow accumulation. Lows in the mid 20s. Chance of snow 60 percent.

Mostly cloudy with a chance of snow showers in the morning
then partly sunny in the afternoon. Highs in the lower 30s. Chance of snow 40 percent.

Partly cloudy. Lows around 20.

Partly sunny. Not as cold with highs in the lower 40s.

Mostly cloudy and not as cold. Near steady temperature in the mid 30s.

Partly sunny. Warmer with highs in the lower 50s.

Mostly cloudy with a 40 percent chance of showers. Mild. Lows in the lower 40s.

Considerable cloudiness. Showers likely
mainly in the afternoon. Mild. Highs in the mid 50s. Chance of rain 60 percent.

12-48 Hr Surface Forecast Maps, TWC 4-Panel Surface Forecast, Fire Danger, Day 1 Precip, Day 2 Precip, Days 1-5 Precip, Severe Weather Pot.-Day 1, Day 2

Medium & Long Range Outlook For Pennsylvania
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                 MAR 5-MAR 9 MAR 7-MAR 13    FEB       FEB-APR                      
                 -----------  -----------  --------  ---------
   Temperature:      Above       Normal     Normal      Above                      
 Precipitation:      Above       Normal      Above     Normal                      

....  Medium and long range outlooks provided by NCEP/K. Thomas Priddy
5 Day Rainfall Forecast, 6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook
Historical Weather And Climate Facts For Today

A massive storm spread record snows from Kansas to New York State. Snowfall
totals rangeD up to 17.5 inches at Springfield IL and 43 inches at
Rochester NY, with up to 60 inches in the Adirondack Mountains of New York
State. (David Ludlum)
An intense storm brought coastal sections of southeastern Massachusetts to
a halt, stranding 3000 motorists on Lower Cape, and leaving ten thousand
homes on the Cape without electricity. Winds gusting to 72 mph created
mountainous snowdrifts of the 18 inches of snow which buried Nantucket and
Hyannis. A barometric pressure reading of 29.02 inches was reported at the
center of the storm. (The Weather Channel)
A powerful storm produced severe thunderstorms in Louisiana and Mississippi
early in the day. About mid morning a monstrous tornado touched down near
Moselle MS and grew to a width of two miles as it passed near Laurel MS.
The tornado traveled a distance of 40 miles killing six persons, injuring
350 others, and causing 28.5 million dollars damage. The tornado swept
homes right off their foundations, and tossed eighteen wheel trucks about
like toys. Strong straight line winds associated with the powerful storm
system gusted to 70 mph at Jonesboro AR and Carbondale IL. (The National
Weather Summary) (Storm Data)
Thunderstorms in California produced severe weather during the early
morning hours. Strong thunderstorm winds, gusting to 74 mph, downed trees
in the Sacramento area. Unseasonably mild weather prevailed in the
northwestern U.S. The afternoon high of 71 degrees at Portland OR was a
February record. (The National Weather Summary) (Storm Data)
Thunderstorms in the southeast corner of the nation produced winds gusts to
58 mph at Fort Lauderdale FL, and a total of seven inches of rain. Heavy
snow whitened parts of the Northern Plateau and the Northern Rockies, with
ten inches reported at Marion MT. (The National Weather Summary) (Storm
Showers and thunderstorms over the Southern Plains Region capped a record
wet February for parts of Oklahoma. Totals for the month ranged up to 9.11
inches at McCurtain, with 4.63 inches reported at Oklahoma City. Snow and
sleet fell across northern Oklahoma, with four inches reported at Freedom
and Jefferson. Snow also spread across southern Kansas into Missouri and
Arkansas, with six inches of snow reported at Harrison AR. In Alaska,
February temperatures at Nome averaged 21 degrees below normal, ranging
from -38 degrees to 29 degrees during the month. (The National Weather
Summary) (Storm Data)

Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky