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

Winnebago 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
359 PM CDT Fri Jun 22 2018

Partly to mostly cloudy skies were seen across central and
southeast Illinois, through the late morning hours. A few showers
were seen across central Illinois, as well. Temperatures around 
the area at 3 PM, ranged from 64 degrees at Lacon, to 78 degrees 
at Lawrenceville.

Dry weather will return across the Midwest later tonight, after 
the large low pressure system slides east. A brief dry period on 
Saturday. Additional wet weather is forecast to arrive back into 
the area by Sunday. A cool down is forecast Friday with highs in 
the 70s, but a warmup back to the 80s will occur through the 

Low temperatures overnight, will range from the mid 50s across
northern Illinois and much of Iowa and Wisconsin, to the upper 
60s across the Missouri bootheel.

High temperatures on Saturday, will top out in the middle 70s to
the middle 80s across the Midwest.

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 WINNEBAGO County
Issued at 700 PM CDT FRI JUN 22 2018

ROCKFORD       CLOUDY    64  58  80 N7        29.77F                  
6HR MIN TEMP:  63; 6HR MAX TEMP:  67; 6HR PCP: TRACE;                

FREEPORT*      CLOUDY    62  62  97 NE7       29.79S                  
ROCHELLE*      CLOUDY    61  60  97 NE7       29.76S                  
DE KALB*       CLOUDY    62  60  94 CALM      29.76S                  
PERU*          CLOUDY    65  62  88 NE12      29.75R                  

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 700pm CDT, Friday June 22, 2018

Across Illinois...temperatures are near 64 degrees north, near 69 degrees central, and near 69 degrees south. Current sky conditions are cloudy north, cloudy central, and rain south. In the north, relative humidity is near 80%, and the dew point is near 58 degrees. In the central part of the state, relative humidity is near 96%, and the dew point is near 68 degrees. In the south, relative humidity is near 93%, and the dew point is near 67 degrees. The livestock heat stress category is no stress north, no stress central, and no stress south. There is patchy fog south. Winds are from the north at 7 mph north, where conditions are favorable for spraying. Winds are from the north at 9 mph central, where conditions are favorable for spraying. Winds are variable at 6 mph south, where conditions are not favorable for spraying due to rain. Based on current available observations, the highest temperature is 360/ degrees at Northerly Island. The lowest temperature is 61 degrees at Wheeling, Waukegan, and Rochelle.

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 WINNEBAGO County,IL

356 PM CDT Fri Jun 22 2018 /456 PM EDT Fri Jun 22 2018/

 DAY ONE  Tonight.

Weather hazards expected  

  Limited Thunderstorm Risk.
  Elevated Flooding Risk.
  High Swim Risk


An area of thunderstorms generally south and east of a line from 
southern Ford County to Kankakee to Michigan City has the 
potential to result in brief funnel clouds and localized flash 
flooding through early evening.

Breezy east northeasterly winds will produce dangerous swimming
conditions along the Illinois and Lake County Indiana Lake Michigan 
shore through tonight.

Many area rivers will continue to rise, some into flood.

 DAYS TWO THROUGH SEVEN  Saturday through Thursday.

  Elevated Thunderstorm Risk.
  Limited Flooding Risk.
  Elevated Thunderstorm Risk.
Wednesday and Thursday  
  Limited Thunderstorm Risk.
  Limited Excessive Heat Risk.


A couple periods of thunderstorms will be possible late Monday 
night through early Wednesday. Some of these storms could be
strong and contain heavy rainfall capable of producing 
localized flash flooding.

Temperatures and humidity levels will be on the increase later in
the week. This may result in heat indices climbing well into the 
90s Wednesday and Thursday.

Flooding is expected to continue along many area rivers into the 


  Spotter activation will not be necessary through tonight.


  Moving toward north or northwest at 5 mph.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For WINNEBAGO County, IL
325 PM CDT Fri Jun 22 2018

Mostly cloudy. A 20 percent chance of showers in the evening. Lows in the upper 50s. North winds 10 to 15 mph.

Partly sunny. Highs in the upper 70s. North winds 5 to 10 mph.

Partly cloudy. Lows around 60. West winds around 5 mph.

Partly cloudy. Highs in the lower 80s. Northeast winds 5 to 10 mph.

Partly cloudy. Lows around 60. East winds 5 to 10 mph.

Partly sunny. Highs around 80.

Mostly cloudy. Chance of showers and thunderstorms in the evening, then showers likely after midnight. Lows in the mid 60s. Chance of precipitation 60 percent.

Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs in the lower 80s.

Mostly cloudy. Showers and thunderstorms likely in the evening, then a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of precipitation 60 percent.

Partly cloudy. Highs in the mid 80s. Lows in the upper 60s.

Partly cloudy with a 30 percent chance of showers and thunderstorms. Lows in the upper 60s.

Partly cloudy with a 40 percent chance of showers and thunderstorms. Highs in the mid 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
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                JUN 28-JUL 2 JUN 30-JUL 6    JUL       JUL-SEP                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above      Above      Above                      
 Precipitation:      Above        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

Friday June 22, 2018 the 173th Day of Year

Declination 23.430000
Distance 0.999716 AU
Rise 06:31 EDT Set 21:31 EDT
Transit Meridian 14:01 EDT
Civil Twilight Begins 06:00 EDT Ends 22:02 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

Twelve inches of rain fell in forty-two minutes at Holt MO establishing a
world rainfall record. That record was tied on January 24-25, 1956, at the
Kilauea Sugar Plantation in Hawaii, as their state record was established
with 38 inches of rain in 24 hours. (The Weather Channel)
Hurricane Agnes deluged Pennsylvania and New York State with torrential
rains resulting in the most costly flood in U.S. history. In the Middle
Susquehanna Valley of Pennsylvania, 24 hour rainfall amounts were generally
8 to 12 inches, with up to 19 inches in extreme southwestern Schuylkill
County. At Wilkes-Barre PA the dike was breached destroying much of the
town. Flooding resulted in 117 deaths and 3.1 billion dollars damage.
(David Ludlum)
A young woman from Lubbock TX was struck by lightning. The bolt of
lightning struck just above her right shoulder near her neck, and passed
right to left through her body, tearing her warm-ups, causing her tennis
shoes to explode, and lifting her two feet into the air. (The Weather
Record cold prevailed in the eastern U.S. with 67 low temperature records for 
the date tied or broken.  Indianapolis, Indiana dipped to 37 degrees to set a 
new all-time record low temperature for June and the coldest summer temperature 
ever.  In sharp contrast, it was a furnace in the Pacific Northwest with Eugene 
and Medford, Oregon setting new all-time record high temperatures for June with 
102 and 111 degrees, respectively.

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