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Henderson County, IL Weather and Climate Synopsis

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Weather Summary For Central And Southeast Illinois
National Weather Service Lincoln IL
921 PM CST Sun Dec 17 2017

Cloudy skies remained in place, across central and southeast
Illinois, through the late evening hours. Temperatures across the
area at 9 p,m., ranged from 41 degrees at Robinson, to 47 degrees
at Springfield.

A weak weather system will track northeast across the region overnight,
producing scattered rain showers to portions of Iowa, Illinois,
and Wisconsin. Patchy drizzle or sprinkles will linger into 
Monday, as a weak front shifts through the Midwest. After this 
system exits to the east, dry and seasonably mild conditions will 
prevail over the Midwest, through mid-week.

Overnight low temperatures, will range from the 20s across
portions of Iowa and Wisconsin, to the middle 40s across the
Missouri bootheel.

High temperatures on Monday, will range from the 30s across
Wisconsin, to near 60 degrees across southwest Missouri.

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

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Regional Hourly Observations For HENDERSON County
Issued at 1200 AM CST MON DEC 18 2017

QUINCY         CLOUDY    45  42  89 SW10      30.01S                  
GALESBURG*     CLOUDY    43  43 100 SW8       29.99F FOG              
MACOMB*        CLOUDY    44  43  96 SW10      30.02F FOG              
JACKSONVILLE*  CLOUDY    44  42  91 SW8       30.02S                  
PITTSFIELD*    CLOUDY    46  43  91 SW6       30.03S                  

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 1200am CST, Monday December 18, 2017

Across Illinois...temperatures are near 36 degrees north, near 44 degrees central, and near 44 degrees south. Current sky conditions are light rain north, cloudy central, and cloudy south. In the north, relative humidity is near 96%, and the dew point is near 35 degrees. In the central part of the state, relative humidity is near 93%, and the dew point is near 42 degrees. In the south, relative humidity is near 96%, and the dew point is near 43 degrees. There is patchy fog south. Winds are from the south at 5 mph north, where conditions are not favorable for spraying due to light rain. The wind chill is near 32 degrees north. Winds are from the southwest at 12 mph central, where conditions are favorable for spraying. Winds are from the southwest at 10 mph south, where conditions are favorable for spraying. The livestock cold stress index is in the no stress category north, no stress category central, and no stress category south. Based on current available observations, the highest temperature is 47 degrees at Springfield. The lowest temperature is 35 degrees at Waukegan and Freeport.

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 HENDERSON County,IL

337 PM CST Sun Dec 17 2017


Fog and drizzle will develop tonight over portions of the outlook
area. The potential for dense fog is low, but there is a chance
for some patchy freezing drizzle to occur where the surface 
temperature drops below freezing late this evening into early 
Monday morning. The favored areas are along and east of a line
from DeWitt to Dubuque. If freezing drizzle does occur, it may
linger into the Monday morning commute, especially in far 
northwest Illinois.


Latest indications regarding the Thursday into Friday storm system, 
are that it is shifting the higher potential for accumulating 
snow to the northwest and north of the Outlook Area. It is still 
early for determining the exact track of this system, and those 
with travel plans late in the week should keep up with the latest 
forecasts and updates.


Reports of any slick road conditions late tonight and early Monday
morning would be appreciated.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For HENDERSON County, IL
1142 PM CST Sun Dec 17 2017

Cloudy. Areas of fog. A chance of drizzle. Low in the upper 30s. Southwest wind 5 to 10 mph. Chance of precipitation 30 percent.

Mostly cloudy in the morning then becoming mostly sunny. Patchy fog in the morning. A slight chance of drizzle in the morning. High around 50. Southwest wind 10 to 15 mph. Chance of precipitation 20 percent.

Partly cloudy. Low in the upper 30s. Southwest wind 10 to 15 mph.

Mostly sunny. High in the lower 50s. Northwest wind 5 to 10 mph.

Colder. Mostly clear. Low in the upper 20s. North wind 5 to 10 mph.

Mostly sunny. High in the mid 40s.

Partly cloudy in the evening then becoming mostly cloudy. Low in the lower 30s.

Mostly cloudy. High around 50.

Mostly cloudy with a 30 percent chance of rain possibly mixed with snow. Low in the mid 30s. High in the lower 40s.

Colder. Mostly cloudy. Low around 20. High in the lower 30s.

Mostly cloudy with a 30 percent chance of snow. High in the upper 20s.

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
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   DEC 23-27 DEC 25-DEC 31    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below     Normal     Normal                      
 Precipitation:     Normal        Below     Normal      Above                      

....  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

Monday December 18, 2017 the 352th Day of Year

Declination -23.410000
Distance 0.999725 AU
Rise 08:16 EST Set 17:36 EST
Transit Meridian 12:56 EST
Civil Twilight Begins 07:46 EST Ends 18:06 EST

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

A tornado swept across Jackson County, Williamson County and Franklin
County in southern Illinois killing eleven persons. (David Ludlum)
A heavy lake-effect snow blanketed the southern and southeast shores of
Lake Michigan leaving up to 22 inches of snow at Valparaiso IND. (David
Record cold hit the north central states. At Havre MT the mercury plunged
to a record reading of 34 degrees below zero. (Sandra and TI Richard
Sanders - 1987)
A storm over southern California left up to 16 inches of snow in the
mountains and upper deserts, with 13 inches reported at Lancaster. Edwards
Air Force Base was closed, and Interstate 5 was closed from Castaic to the
Tehachapis Mountains. (18th-19th) (The Weather Channel)
A strong winter storm, which developed off the coast of New Jersey and
moved out to sea, lashed the northeastern U.S. with high winds, heavy rain,
and heavy snow. The storm left snowfall amounts of up to 30 inches in
Vermont, 24 inches in Massachusetts, and 20 inches in New Hampshire. The
highest rainfall amounts approached four inches in southern New England,
where winds gusted to 70 mph. (Storm Data)
A weakening storm moved into the Rocky Mountain Region producing six inches
of snow at the Platoro Reservoir in the San Juan Mountains of Colorado. The
storm then spread rain and drizzle across the Southern High Plains into the
Middle Mississippi Valley, with thunderstorms over Texas. (Storm Data) (The
National Weather Summary)
Warm weather prevailed in the central U.S. while cool weather prevailed
across the eastern states. Sheridan WY, with a record warm afternoon high
of 68 degrees, was seven degrees warmer than Key West FL. (The National
Weather Summary)
A winter storm moving out of the Great Plains Region spread freezing rain,
sleet and snow across parts of the southeastern U.S. Freezing rain resulted
in 170 auto accidents in the Memphis area during the evening hours.
Unseasonably warm weather continued ahead of arctic cold front. Miami FL
equalled their record for December with an afternoon high of 87 degrees.
(Storm Data) (The National Weather Summary)

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