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Lasalle County, IL Weather and Climate Synopsis

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Weather Summary Hourly Observations Nowcast Agricultural Weather Outlook
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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
849 PM CDT Tue May 22 2018

High clouds moved into central Illinois this evening, and will
continue through the overnight. Otherwise, clear skies in the
southeast will persist tonight. Temperatures after sunset fell
through the 70s and into the 60s.

High pressure will linger in southern Wisconsin through mid-week
before slowly progressing eastward during the second half of the 
week. This will hold dry conditions and warmer temperatures in 
place for much of the region through Friday morning.

Lows tonight will range from the lower 50s in northern Illinois, 
to the mid 60s in southern Illinois. Highs Wednesday will increase
a few degrees in northern Illinois to near 80, while remaining in
the mid 80s 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 LASALLE County
Issued at 1200 AM CDT WED MAY 23 2018

CHICAGO-OHARE  FAIR      54  51  90 CALM      30.09S                  
CHICAGO-MIDWAY FAIR      54  50  86 SE3       30.10R                  
AURORA         FAIR      56  55  97 CALM      30.10S FOG              
LANSING*       FAIR      51  51 100 CALM      30.11S FOG              
JOLIET*        FAIR      54  54 100 CALM      30.11S FOG              
WAUKEGAN       FAIR      48  47  96 CALM      30.09F FOG              
DUPAGE AIRPORT FAIR      54  54 100 CALM      30.09F FOG              
KANKAKEE*      FAIR      56  54  94 CALM      30.11S                  
WHEELING       FAIR      54  52  93 CALM      30.11S                  
MORRIS*        FAIR      58  55  92 CALM      30.10R                  
ROMEOVILLE*    FAIR      54  53  95 CALM      30.11R FOG              
NORTHERLY ISL    N/A     50  47  89 SE1         N/A                   

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 CDT, Wednesday May 23, 2018

Across Illinois...temperatures are near 55 degrees north, near 63 degrees central, and near 63 degrees south. Current sky conditions are fair north, fair central, and not available south. In the north, relative humidity is near 96%, and the dew point is near 54 degrees. In the central part of the state, relative humidity is near 81%, and the dew point is near 57 degrees. In the south, relative humidity is near 97%, and the dew point is near 62 degrees. The livestock heat stress category is no stress north, no stress central, and no stress south. There is patchy fog south. Winds are calm north, where conditions are favorable for spraying. Winds are from the north at 5 mph central, where conditions are favorable for spraying. Winds are calm south, where conditions are not favorable for spraying due to not available. Based on current available observations, the highest temperature is 73 degrees at Flora. The lowest temperature is 48 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 LASALLE County,IL

400 PM CDT Tue May 22 2018 /500 PM EDT Tue May 22 2018/

 DAY ONE  Tonight.


  Significant Fog Risk.


Widespread fog is expected again tonight, with dense fog possible.

Portions of the Des Plaines and Fox rivers will remain in flood.

 DAYS TWO THROUGH SEVEN  Wednesday through Monday.

  Significant Fog Risk in the morning.
Friday through Monday  
  Limited Thunderstorm Risk.


Dense fog will remain possible through early to mid Wednesday morning.

Portions of the Des Plaines and Fox rivers will remain in


Spotter activation will not be necessary through tonight.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For LASALLE County, IL
1203 AM CDT Wed May 23 2018

Clear. Areas of fog after midnight. Lows in the mid 50s. Southeast winds around 5 mph.

Partly cloudy. Areas of fog in the morning. Highs around 80. East winds around 5 mph.

Mostly clear. Lows in the upper 50s. East winds 5 to 10 mph.

Mostly sunny. Highs in the mid 80s. Southeast winds 5 to 10 mph.

Mostly clear. Lows in the lower 60s. South winds 5 to 10 mph.

Mostly sunny. Highs in the upper 80s.

Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid 60s.

Partly cloudy. Highs in the upper 80s.

Partly cloudy. Lows in the mid 60s. Highs in the upper 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 
                MAY 28-JUN 1 MAY 30-JUN 5    MAY       MAY-JUL                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above      Above      Above                      
 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

Wednesday May 23, 2018 the 143th Day of Year

Declination 20.770000
Distance 0.999717 AU
Rise 06:37 EDT Set 21:15 EDT
Transit Meridian 13:55 EDT
Civil Twilight Begins 06:07 EDT Ends 21:45 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

An F4 tornado struck Mineral Point, WI killing 17 and injuring 45. A record 
book was carried 60 miles from a schoolhouse. In Primrose Township, the 
deed to Chandler Farm was found 10 miles away. (NWS Louisville)
An unusual late season snow blanketed eastern Iowa, with four to six inches
reported around Washington. (David Ludlum) (The Weather Channel)
The temperature at Hollis OK soared from a morning low of 70 degrees to an
afternoon high of 110 degrees to establish a state record for the month of
May. (The Weather Channel)
An F3 tornado moved through the northeast and east sections of Leitchfield 
KY. An F0 tornado was spotted at Priceville KY. An F0 tornado touched down 
briefly in Taylor County. (NWS Louisville)

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