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Marion 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

US Weekly Rainfall Departure

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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
424 AM CST Wed Dec 13 2017

Mostly clear skies across the region allowed temperatures to drop
back to the 20s for overnight lows.

Calm winds will give way to breezy southerly winds once again, as
another clipper system moves through the Midwest. This will 
spread snow across the Great Lakes, while the chance for rain 
showers exists across Illinois and western Indiana. Temperatures
will increase again today, but behind the front, colder air will
return for Thursday. As the week continues, clipper systems will 
progress over the Great Lakes, bringing the chance for snowfall 
through the end of this week and into the weekend.

High temperatures today, will range from the mid 20s across 
central Wisconsin and northeast Indiana, to the upper 50s across 
southwest Missouri. Lows Wednesday night will return to the teens
across northern Illinois and Indiana, while dropping to the upper
20s along the Ohio River Valley.

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

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Regional Hourly Observations For MARION County
Issued at 600 AM CST WED DEC 13 2017

CARBONDALE     CLEAR     28  13  53 SW14      29.90F WCI  17          
6HR MIN TEMP:  20; 6HR MAX TEMP:  28;                                

CAIRO*         CLEAR     29  18  61 S6        29.97S WCI  23          
EFFINGHAM*     MOCLDY    26  12  56 S6        29.85F WCI  19          
MARION         CLEAR     26  15  64 S8        29.92F WCI  17          
MT. VERNON     PTCLDY    26  16  65 SW9       29.88F WCI  17          
CENTRALIA*     PTCLDY    27  15  59 S12       29.85F WCI  17          
SALEM*         PTCLDY    29  13  52 S9        29.85F WCI  20          
METROPOLIS*    CLOUDY    27  14  56 S7        29.97F WCI  20          

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 600am CST, Wednesday December 13, 2017

Across Illinois...temperatures are near 25 degrees north, near 27 degrees central, and near 26 degrees south. Current sky conditions are cloudy north, cloudy central, and partly cloudy south. In the north, relative humidity is near 68%, and the dew point is near 16 degrees. In the central part of the state, relative humidity is near 53%, and the dew point is near 12 degrees. In the south, relative humidity is near 65%, and the dew point is near 16 degrees. Winds are from the south at 18 mph north, where conditions are not favorable for spraying due to strong winds. The wind chill is near 11 degrees north. Winds are from the south at 12 mph central, where conditions are favorable for spraying. The wind chill is near 17 degrees central. Winds are from the southwest at 9 mph south, where conditions are favorable for spraying. The wind chill is near 17 degrees south. 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 32 degrees at Quincy and Moline. The lowest temperature is 21 degrees at Robinson and Lawrenceville.

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 MARION County,IL

445 AM CST Wed Dec 13 2017

 DAY ONE  Today and Tonight

There is elevated fire danger this afternoon across southeast
Missouri and parts of central Missouri and southwest Illinois due
to sustained winds of 10 to 20 mph with gusts to 30 mph, low 
relative humidity of 25 to 30 percent, and dry fuels.

 DAYS TWO THROUGH SEVEN  Thursday through Tuesday

No hazardous weather is expected at this time.


Spotter activation is not anticipated through tonight.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For MARION County, IL
451 AM CST Wed Dec 13 2017

Clear. Near steady temperature in the mid 20s. South wind around 10 mph.

Windy, warmer. Mostly sunny. High in the lower 50s. Southwest wind 15 to 25 mph in the morning shifting to the west in the afternoon. Gusts up to 35 mph.

Blustery. Partly cloudy early in the evening then becoming mostly cloudy late in the evening then becoming partly cloudy after midnight. Low in the mid 20s. Northwest wind 10 to 15 mph with gusts to around 30 mph.

Colder. Partly cloudy in the morning then becoming mostly cloudy. High in the upper 30s. North wind around 10 mph in the morning becoming light in the afternoon.

Mostly cloudy. Low in the mid 20s. Light wind.

Partly sunny. High around 40. West wind 10 to 15 mph.

Mostly clear. Low in the upper 20s.

Warmer. Mostly sunny. High around 50.

Partly cloudy with a 30 percent chance of rain, possibly mixed with snow. Low in the mid 30s.

Rain likely. High in the upper 40s. Temperature steady or slowly falling in the afternoon. Chance of rain 60 percent.

Partly cloudy with a 20 percent chance of rain. Low in the lower 30s.

Partly cloudy. High in the upper 40s. Low in the lower 30s.

Mostly sunny. High around 50. Temperature falling into the 40s in the afternoon.

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 18-22    DEC 20-26    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:      Above       Normal     Normal     Normal                      
 Precipitation:      Below       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

Wednesday December 13, 2017 the 347th Day of Year

Declination -23.210000
Distance 0.999724 AU
Rise 08:12 EST Set 17:35 EST
Transit Meridian 12:53 EST
Civil Twilight Begins 07:43 EST Ends 18:04 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 heavy snowstorm kicked off the snowiest winter in modern records for
western New England. (The Weather Channel)
Record cold weather gripped the nation. The low temperature in Lexington, KY 
fell to -6 degrees (record low on this date), -3 at Covington and -3 at Paducah. 
Severe cold conditions went as far south as Florida with a hard freeze. Morning 
lows reached 35 degrees at Miami, 18 degrees at Tampa, and 12 degrees at 
Jacksonville. It was the coldest December weather of the 20th century and caused 
millions of dollars damage to crops and foliage. In Georgia, the morning low of 
9 degrees below zero at Blairsville established a state record for the month of 
A major winter storm produced high winds and heavy snow in the Southern
Rockies and the Southern High Plains. Snowfall totals in New Mexico ranged
up to 25 inches at Cedar Crest, with up to three feet of snow reported in
the higher elevations. Winds of 75 mph, with gusts to 124 mph, were
reported northeast of Albuquerque NM. El Paso TX was buried under 22.4
inches of snow, including a single storm record of 16.8 inches in 24 hours.
The snowfall total surpassed their previous record for an entire winter
season of 18.4 inches. Record cold was experienced the next three nights as
readings dipped into the single numbers. High winds ushering unseasonably
cold air into the southwestern U.S. gusted to 100 mph at Grapevine CA. (The
National Weather Summary) (Storm Data)
Low pressure off the Atlantic coast produced up to a foot of snow in
eastern Nassau County and western Suffolk County of southeastern New York
State. Mild weather prevailed across the western half of the country. Nine
cities reported record high temperatures for the date, including Goodland
KS with a reading of 74 degrees. (The National Weather Summary) (Storm
Strong northwesterly winds, ushering bitterly cold arctic air into the
central U.S., produced squalls with heavy snow in the Great Lakes Region.
Snowfall totals in Upper Michigan ranged up to 24 inches at Manistique.
Nine cities in Arkansas and Texas reported record low temperatures for the
date, including Calico Rock AR with a reading of 4 degrees above zero.
(Storm Data) (The National Weather Summary)

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