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Mercer County, IL Weather and Climate Synopsis

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





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

Weather Summary For Central And Southeast Illinois
National Weather Service Lincoln IL
934 AM CDT Tue Jul 17 2018

Mostly sunny skies and seasonable temperatures prevailed over
central and southeast Illinois this morning. Overnight lows ranged
from 59 in Galesburg, to 73 in Flora.

A large high pressure ridge centered over the upper Midwest, will
shift east into the Great Lakes, through mid-week. This will 
bring seasonable temperatures and dry weather to the region. The 
next chance for rainfall will occur on Thursday, when a frontal 
boundary approaches from the west.

High temperatures today will reach the 80s for much of the
Midwest, while lows tonight will drop into the 60s.

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

Click here for UKAWC Point Agricultural, Lawn & Garden Forecast/Outlook in case of corrupt tables.
Regional Hourly Observations For MERCER County
Issued at 1200 PM CDT TUE JUL 17 2018

NORTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         FAIR      85  63  47 N6        30.10R HX  86           
STERLING*      FAIR      83  68  60 VRB5      30.10R HX  86           
SAVANNA*       FAIR      82  63  51 W6        30.10R HX  83           

Current Temperatures, Dewpoint Map, RH, Wind, Regional Obs, Surface 4-Panel
Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford


Current Agricultural Weather Conditions in Illinois
Based on observations at 1200pm CDT, Tuesday July 17, 2018

Across Illinois...temperatures are near 81 degrees north, near 83 degrees central, and near 86 degrees south. Current sky conditions are fair north, fair central, and fair south. In the north, relative humidity is near 48%, and the dew point is near 60 degrees. The heat index is near 82 degrees north. In the central part of the state, relative humidity is near 56%, and the dew point is near 66 degrees. The heat index is near 85 degrees central. In the south, relative humidity is near 65%, and the dew point is near 73 degrees. The heat index is near 93 degrees south. The livestock heat stress category is no stress north, no stress central, and danger south. Winds are from the north at 8 mph north, where conditions are favorable for spraying. Winds are from the northeast at 8 mph central, where conditions are favorable for spraying. Winds are variable at 5 mph south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 88 degrees at Metropolis and Marion. The lowest temperature is 30/ degrees at Northerly Island.


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.

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

325 AM CDT Tue Jul 17 2018

 DAY ONE  TODAY AND TONIGHT

No hazardous weather is expected at this time.

 DAYS TWO THROUGH SEVEN  WEDNESDAY THROUGH MONDAY

Wednesday night through Friday, thunderstorms will be possible 
over much of the outlook area. Current indications suggest severe
storms with damaging winds will be possible Thursday and Thursday
night west of the Mississippi River. There will also be a risk of
heavy rainfall. 

 SPOTTER INFORMATION STATEMENT  

Spotter activation will not be needed today or tonight.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For MERCER County, IL
1157 AM CDT Tue Jul 17 2018

REST OF TODAY
Mostly sunny. High in the mid 80s. North wind around 5 mph.

TONIGHT
Mostly clear. Low in the lower 60s. Northeast wind around 5 mph shifting to the east after midnight.

WEDNESDAY
Mostly sunny. High in the lower 80s. Southeast wind 5 to 10 mph.

WEDNESDAY NIGHT
Partly cloudy in the evening, then mostly cloudy with a 20 percent chance of showers and thunderstorms after midnight. Low in the mid 60s. Southeast wind 5 to 10 mph.

THURSDAY
Mostly cloudy with a 50 percent chance of showers and thunderstorms. High in the lower 80s. South wind 10 to 15 mph.

THURSDAY NIGHT
Mostly cloudy with a 50 percent chance of showers and thunderstorms. Low in the upper 60s.

FRIDAY
Partly sunny with a 40 percent chance of showers and thunderstorms. High in the mid 80s.

FRIDAY NIGHT AND SATURDAY
Partly cloudy. Low in the mid 60s. High in the lower 80s.

SATURDAY NIGHT THROUGH SUNDAY NIGHT
Mostly clear. Low in the mid 60s. High in the lower 80s.

MONDAY
Mostly sunny. High in the lower 80s.

12-48 Hr Surface, 12-48 Hr ETA 500mb/Sfc, TWC Forecast, Fire Danger, Day 1 Precip, Day 2 Precip, Days 1-5 Precip
NGM 60 Hr Forecast Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford , Severe Weather Pot.-Day 1, Day 2


Medium & Long Range Outlook For Illinois
                             ILLINOIS                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   JUL 22-26    JUL 24-30    JUL       JUL-SEP                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below      Above      Above                      
 Precipitation:      Below        Above     Normal     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
MRF 10-Day Forecast Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford

Almanac Information

Tuesday July 17, 2018 the 198th Day of Year

---------------------------------------------------
SUN
Declination 21.020000
Distance 0.999716 AU
Rise 06:45 EDT Set 21:25 EDT
Transit Meridian 14:05 EDT
Civil Twilight Begins 06:15 EDT Ends 21:55 EDT

Calculations made for central point in the state.
Time in ET -- and will vary due to location and
elevation -- Priddy


Historical Weather And Climate Facts For Today

///////////////////////
JULY 17TH...HISTORIC WEATHER EVENTS
...1934...
One of the worst heat waves in the history of the nation commenced. During
the last two weeks of the month extreme heat claimed 679 lives in Michigan,
including 300 in Detroit alone. (The Weather Channel)
...1941...
A prolonged heat wave over Washington State finally came to an end.
Lightning from untimely thunderstorms was responsible for 598 forest fires.
(David Ludlum)
...1952...
Thunderstorms helped the temperatur at Key West FL to dip to 69 degrees, to
equal their July record established on the first of July in 1923. (The
Weather Channel)
...1957...
On a warm and sunny day at Wilmington DE, with a high of 86 degrees, a dust
devil suddenly appeared. It tore most the roof off one house, and stripped
shingles from a neighboring house. A TV aerial was toppled, and clothes
were blown off clothes lines. (The Weather Channel)
...1987...
Slow moving thunderstorms caused flooding on the Guadalupe River in Texas
resulting in tragic loss of life. A bus and van leaving a summer youth camp
stalled near the rapidly rising river, just west of the town of Comfort,
and a powerful surge of water swept away 43 persons, mostly teenagers. Ten
drowned in the floodwaters. Most of the others were rescued from tree tops
by helicopter. (The National Weather Summary) (Storm Data)
...1988...
A dozen cities in the eastern U.S., and six others in California, reported
record high temperatures for the date. Downtown San Francisco CA, with a
high of 103 degrees, obliterated their previous record high of 82 degrees.
Philadelphia PA reported a record five straight days of 100 degree heat,
and Baltimore MD reported a record eight days of 100 degree weather for the
year. Afternoon and evening thunderstorms produced severe weather along the
Middle Atlantic Coast, and over southern New England. (The National Weather
Summary)
...1989...
Thunderstorms produced severe weather from South Dakota to Lousiana, with
126 reports of large hail and damaging winds during the day and night.
Thunderstorms in Nebraska produced hail four inches in diameter in Frontier
County, and at North Platte, causing millions of dollars damage to crops in
Frontier County. Thunderstorms in Oklahoma produced wind gusts to 90 mph at
Peggs. Tahlequah OK was drenched with 5.25 inches of rain. (Storm Data)
(The National Weather Summary)


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