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

McDonough County, IL 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.

Weather Summary For Central And Southeast Illinois
National Weather Service Lincoln IL
302 PM CST Sat Dec 16 2017

Mostly sunny skies over central Illinois through the afternoon, as
high pressure in the southeast U.S. continues to shift eastward.
Southerly winds allowed temperatures to climb well above normal,
with reports in the 50s for highs.

As the high continues east, southerly winds will linger through
the remainder of the weekend. A weather system approaching from
the southwest on Sunday will build more clouds into the region,
cooling temperatures in to the 40s. This system will also bring
the chance for scattered rain showers to the Midwest. Drier
weather, and warmer temperatures, will move in Monday and linger
through the first half of the week.

Lows tonight will range from the mid 20s in northern Illinois, to
the lower 40s in central Missouri. Highs on Sunday will top out
in the upper 30s to upper 40s, from northern Illinois to southern

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 MCDONOUGH County
Issued at 400 PM CST SAT DEC 16 2017

QUINCY         CLEAR     55  27  34 SW13      29.91R                  
GALESBURG*     CLEAR     50  29  45 SW5       29.92R                  
MACOMB*        CLEAR     54  27  34 SW12G17   29.93R                  
JACKSONVILLE*  CLEAR     56  27  31 SW8       29.93R                  
PITTSFIELD*    CLEAR     58  29  32 SW7       29.93R                  

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 400pm CST, Saturday December 16, 2017

Across Illinois...temperatures are near 42 degrees north, near 53 degrees central, and near 51 degrees south. Current sky conditions are partly cloudy north, clear central, and cloudy south. In the north, relative humidity is near 53%, and the dew point is near 26 degrees. In the central part of the state, relative humidity is near 39%, and the dew point is near 29 degrees. In the south, relative humidity is near 46%, and the dew point is near 31 degrees. Winds are calm north, where conditions are favorable for spraying. Winds are from the southwest at 13 mph central, where conditions are not favorable for spraying due to strong winds. Winds are from the southwest at 14 mph south, where conditions are not favorable for spraying due to strong winds. 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 59 degrees at Alton. The lowest temperature is 38 degrees at Waukegan.

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 MCDONOUGH County,IL

331 PM CST Sat Dec 16 2017


Patchy dense fog is possible late tonight north of U.S. Highway
30. Any dense fog that develops could deposit a layer of ice on 
roadways. Motorists should remain alert for reduced visibility and
slick roads.


Patchy dense fog and icy roads may continue Sunday morning, north
of U.S. Highway 30.

Areas of dense fog reducing visibilties down to a quarter mile or 
less, may occur across portions of the Outlook area Sunday night 
into early Monday morning. Also, some patchy freezing drizzle may 
form in areas where the surface temperature drops below freezing 
later Sunday night into early Monday morning. The latest indications 
suggest that areas generally along and 30 miles north of the 
Interstate 80 corridor may be more favored for this activity. If the 
freezing drizzle does manage to form late Sunday night, there may be 
some risk of it lingering into the Monday morning commute.

Accumulating snow is possible Thursday through Friday. It is too 
early to forecast the exact track of the low and potential snow 
amounts. Those with travel plans late in the week should keep up 
with the latest forecast.


Reports of any dense fog and slick road conditions tonight and
Sunday night would be appreciated.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For MCDONOUGH County, IL
342 PM CST Sat Dec 16 2017

Sunny. Southwest wind 10 to 15 mph.

Partly cloudy. Low in the lower 30s. South wind 5 to 10 mph.

Colder, cloudy. Light rain likely in the morning, then a chance of light rain in the afternoon. High in the lower 40s. South wind 5 to 10 mph. Chance of rain 70 percent.

Mostly cloudy. Areas of fog through the night. A slight chance of drizzle through the night. Low in the mid 30s. Southwest wind 5 to 10 mph. Chance of precipitation 20 percent.

Mostly cloudy in the morning then becoming mostly sunny. Areas of fog in the morning. High around 50. Southwest wind 10 to 15 mph.

Mostly clear. Low in the mid 30s. Southwest wind 10 to 15 mph.

Mostly clear. High around 50. Low in the mid 20s.

Partly cloudy. High in the mid 40s. Low in the upper 20s.

Mostly cloudy. High in the mid 40s.

Mostly cloudy. A chance of rain and snow in the evening, then snow likely after midnight. Low in the mid 20s. Chance of precipitation 60 percent.

Colder. Partly sunny. High in the lower 30s.

Partly cloudy. Low around 20. High in the lower 30s.

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 22-26    DEC 24-30    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below     Normal     Normal                      
 Precipitation:     Normal       Normal     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

Saturday December 16, 2017 the 350th Day of Year

Declination -23.350000
Distance 0.999725 AU
Rise 08:14 EST Set 17:36 EST
Transit Meridian 12:55 EST
Civil Twilight Begins 07:45 EST Ends 18:05 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

New England experienced one of their coldest days of record. At noon on
that bitterly cold Wednesday the mercury stood at four degrees below at
Boston, 15 degrees below at Norfolk CT, and 17 degrees below at Hanover NH.
The temperature at Boston was 12 degrees below zero by sunset. Gale force
winds accompanied the severe cold, and that night a great New York City
fire destroyed much of the financial district. (David Ludlum)
A bill was introduced in the House of Representatives, 41st Congress, 
calling for the taking [of] meteorological observations at the military 
stations in the interior of the continent, and for giving notice on the 
northern lakes and Atlantic seaboard of the approach and force of storms. 
This would be signed in to law February 9, 1870, by President Grant, 
establishing what would come to be called the National Weather Service. You 
can see the actual bill on-line at: 
An ice jam closed the Ohio River between Warsaw KY and Rising Sun IN. The
thirty foot high ice jam held for 58 days, and backed up the river a
distance of 100 miles. (David Ludlum)
A Pacific storm battered the coast of California with rain and high winds,
and dumped heavy snow on the mountains of California. Winds along the coast
gusted to 70 mph at Point Arguello, and winds in the Tehachapi Mountains of
southern California gusted to 100 mph at Wheeler Ridge. Snowfall totals
ranged up to 24 inches at Mammoth Mountain. Snow fell for two minutes at
Malibu Beach, and Disneyland was closed due to the weather for only the
second time in twenty-four years. A winter storm which began in the
Southern Rockies four days earlier finished its course producing snow and
high winds in New England. Snowfall totals ranged up to 19 inches at
Blanchard ME. (The National Weather Summary) (Storm Data)
Fairbanks AK reported freezing rain and record warm temperatures. The
afternoon high of 41 degrees was 43 degrees above normal. Snow and high
winds continued to plague the mountains of southern California. Mount
Wilson CA reported two inches of rain in six hours during the early
morning, and a storm total of more than 3.50 inches of rain. (The National
Weather Summary)
Fifty-seven cities from the Southern and Central Plains to the Appalachians
reported record low temperatures for the date, including North Platte NE
with a reading of 17 degrees below zero. Squalls in the Great Lakes Region
produced 18 inches of snow at Syracuse NY, and 30 inches at Carlisle IND.
Low pressure brought heavy snow to northern New England, with 18 inches
reported at Derby VT and Saint Johnsbury VT. (The National Weather Summary)
(Storm Data)

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