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Stephenson County, IL Weather and Climate Synopsis

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Weather Summary For Central And Southeast Illinois
National Weather Service Lincoln IL
235 PM CST Tue Dec 18 2018

A high pressure ridge stretching along the Ohio Valley, brought
sunny skies and seasonably mild temperatures to central and
southeast Illinois on Tuesday. Mid afternoon readings were in the
middle to upper 40s.

The area of high pressure, will continue providing pleasant 
weather across the region through mid-week. Chances for light rain
arrive later Wednesday night and will linger until early Friday 
morning, as a cold front crosses the Midwest. It is possible that
some areas will see a brief changeover to light snow overnight 
Thursday into Friday morning. However, little to no accumulation 
is expected.

Low temperatures tonight will range from the lower 30s in central
Iowa, to the mid 40s along the Ohio Valley. Highs on Wednesday
will range from near 40 degrees in northern Illinois, to near 50
degrees in southern Illinois.

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 STEPHENSON County
Issued at 300 PM CST TUE DEC 18 2018

NORTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         FAIR      50  29  44 S9G21     30.03F                  
STERLING*      FAIR      45  29  53 S7        30.08F                  
SAVANNA*       FAIR      45  28  53 S12       30.04F                  

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 300pm CST, Tuesday December 18, 2018

Across Illinois...temperatures are near 43 degrees north, near N/A degrees central, and near 47 degrees south. Current sky conditions are fair north, fair central, and fair south. In the north, relative humidity is near 55%, and the dew point is near 28 degrees. In the central part of the state, relative humidity is near N/A%, and the dew point is near N/A degrees. In the south, relative humidity is near 58%, and the dew point is near 33 degrees. Winds are from the south at 14 mph north, where conditions are not favorable for spraying due to strong winds. Winds are from the south at 8 mph central, where conditions are favorable for spraying. Winds are variable at 3 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 210/ degrees at Northerly Island. The lowest temperature is 41 degrees at Romeoville, Rochelle, Lansing, Freeport, and De Kalb.


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 STEPHENSON County,IL

352 AM CST Tue Dec 18 2018

 DAY ONE  TODAY AND TONIGHT

No hazardous weather is expected at this time.

 DAYS TWO THROUGH SEVEN  WEDNESDAY THROUGH MONDAY

The probability for widespread hazardous weather is low.

 SPOTTER INFORMATION STATEMENT  

Spotter activation will not be needed today or tonight.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For STEPHENSON County, IL
312 PM CST Tue Dec 18 2018

LATE THIS AFTERNOON
Sunny. South wind 10 to 15 mph.

TONIGHT
Mostly clear in the evening then becoming mostly cloudy. Low in the lower 30s. South wind 10 to 15 mph.

WEDNESDAY
Cloudy. Patchy fog in the afternoon. High in the lower 40s. South wind 10 to 15 mph.

WEDNESDAY NIGHT
Cloudy. Areas of fog. Areas of drizzle. Low in the mid 30s. Southwest wind 5 to 10 mph. Chance of precipitation 20 percent.

THURSDAY
Cloudy. A 30 percent chance of light rain in the morning. High in the upper 30s. Northwest wind 10 to 15 mph.

THURSDAY NIGHT
Mostly cloudy. Low in the upper 20s. North wind 10 to 15 mph.

FRIDAY AND FRIDAY NIGHT
Partly cloudy. High in the lower 30s. Low in the lower 20s.

SATURDAY THROUGH SUNDAY
Mostly cloudy. High in the mid 30s. Low in the mid 20s.

SUNDAY NIGHT
Partly cloudy. Low in the lower 20s.

MONDAY
Partly sunny. High in the lower 30s.

MONDAY NIGHT AND CHRISTMAS DAY
Mostly cloudy. A 30 percent chance of snow. Low in the mid 20s. High in the mid 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
                             ILLINOIS                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   DEC 24-28 DEC 26-JAN 1    DEC   DEC18-FEB19                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above     Normal      Above                      
 Precipitation:      Above        Above      Below      Below                      

....  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 December 18, 2018 the 352th Day of Year

---------------------------------------------------
SUN
Declination -23.400000
Distance 0.999725 AU
Rise 08:16 EST Set 17:36 EST
Transit Meridian 12:55 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

DECEMBER 18TH
HISTORIC WEATHER EVENTS
...1957...
A tornado swept across Jackson County, Williamson County and Franklin
County in southern Illinois killing eleven persons. (David Ludlum)
...1981...
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
Ludlum)
...1983...
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)
...1984...
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)
...1986...
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)
...1987...
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)
...1988...
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)
...1989...
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