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Grundy County, IL Weather and Climate Synopsis

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36 Hr. Forecast Map
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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



US Weekly Temperature 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
859 PM CDT Sun Jul 22 2018

Mostly cloudy skies, northwest winds, gusty at times, and
seasonably cool temperatures were seen across central and 
southeast Illinois this evening. Some showers were seen across 
the east central part of the state at late evening. Temperatures 
around the area at 8 PM, ranged from 70 degrees at Olney and 
Mattoon, to 75 degrees at Rantoul.

As the upper level slides east from southern Ohio overnight, the 
chance for scattered rain showers and isolated thunderstorms will 
end across the Midwest. Dry weather and seasonal temperatures will
be seen on Monday to start the work week. Temperatures and 
humidity will increase across the region through mid week.

Low temperatures overnight, will range from the middle 50s in
northern Wisconsin, to the upper 60s across southeast Missouri, 
southern Illinois, and far western Kentucky.

High temperatures on Monday, will range from the middle 70s in
northeastern Indiana, to the upper 80s in northwest Missouri.

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 GRUNDY County
Issued at 100 AM CDT MON JUL 23 2018

NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  MOCLDY    68  63  84 NW9       29.93F                  
6HR MIN TEMP:  67; 6HR MAX TEMP:  72;                                

CHICAGO-MIDWAY MOCLDY    69  67  93 NW8       29.92F                  
6HR MIN TEMP:  69; 6HR MAX TEMP:  73;                                

AURORA         FAIR      63  62  97 N3        29.94F                  
6HR MIN TEMP:  63; 6HR MAX TEMP:  74;                                

LANSING*       CLOUDY    68  68 100 CALM      29.91F                  
JOLIET*        CLOUDY    67  66  96 N5        29.94F                  
WAUKEGAN       CLOUDY    66  64  93 N3        29.94S                  
6HR MIN TEMP:  66; 6HR MAX TEMP:  70;                                

DUPAGE AIRPORT MOCLDY    66  64  93 N5        29.94F                  
6HR MIN TEMP:  63; 6HR MAX TEMP:  74;                                

KANKAKEE*      FAIR      66  65  98 N5        29.93F                  
WHEELING       CLOUDY    68  65  90 NW6       29.95F                  
6HR MIN TEMP:  68; 6HR MAX TEMP:  73;                                

MORRIS*        FAIR      64  63  97 CALM      29.93F                  
ROMEOVILLE*    MOCLDY    65  64  96 N6        29.94F                  
NORTHERLY ISL    N/A     69  63  81 N5          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 100am CDT, Monday July 23, 2018

Across Illinois...temperatures are near 68 degrees north. Current sky condition is mostly cloudy north. In the north, relative humidity is near 84%, and the dew point is near 63 degrees. The livestock heat stress category is no stress north, unavailable central, and unavailable south. Winds are from the northwest at 9 mph north, where conditions are favorable for spraying. Winds are unavailable central. Winds are unavailable south. Based on current available observations, the highest temperature is 330/ degrees at Northerly Island. The lowest temperature is 68 degrees at Rockford and O'Hare Airport.


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 GRUNDY County,IL

258 PM CDT Sun Jul 22 2018 /358 PM EDT Sun Jul 22 2018/

 DAY ONE  Tonight.

Weather hazards expected  

  Limited Thunderstorm Risk.
  High Swim Risk

DISCUSSION  

There is a chance of a few thunderstorms this afternoon, mainly 
south of I-80. Severe weather is not expected. 

North winds 15 to 25 mph will result in waves of 4 to 6 feet 
along the Illinois and Indiana shores of Lake Michigan through 
early this evening. This will cause dangerous rip currents at area
beaches.

 DAYS TWO THROUGH SEVEN  Monday through Saturday.

  No hazardous weather is expected at this time.

 SPOTTER INFORMATION STATEMENT  

  Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

 Moving toward the south southwest at 20 to 30 mph.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For GRUNDY County, IL
931 PM CDT Sun Jul 22 2018

REST OF TONIGHT
Partly cloudy. Lows in the lower 60s. North winds 5 to 10 mph.

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

MONDAY NIGHT
Mostly clear. Lows in the lower 60s. North winds 5 to 10 mph in the evening becoming northwest after midnight.

TUESDAY
Mostly sunny in the morning then becoming partly cloudy. Highs in the mid 80s. Northwest winds 5 to 10 mph.

TUESDAY NIGHT
Mostly clear. Lows in the mid 60s. Northwest winds 5 to 10 mph.

WEDNESDAY
Sunny. Highs in the mid 80s.

WEDNESDAY NIGHT
Mostly clear. Lows in the mid 60s.

THURSDAY
Partly cloudy. Highs around 80.

THURSDAY NIGHT THROUGH SATURDAY NIGHT
Partly cloudy. Lows in the lower 60s. Highs around 80.

SUNDAY
Mostly cloudy. Chance of showers. Highs around 80. Chance of precipitation 40 percent.

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 
                JUL 28-AUG 1 JUL 30-AUG 5    JUL       JUL-SEP                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below      Above      Above                      
 Precipitation:     Normal       Normal     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

Monday July 23, 2018 the 204th Day of Year

---------------------------------------------------
SUN
Declination 19.870000
Distance 0.999716 AU
Rise 06:50 EDT Set 21:20 EDT
Transit Meridian 14:05 EDT
Civil Twilight Begins 06:21 EDT Ends 21:50 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

////////////////////////
JULY 23RD...HISTORIC WEATHER EVENTS
...1788...
A weather diary kept by George Washington recorded that the center of a
hurricane passed directly over his Mount Vernon home. The hurricane crossed
eastern North Carolina and Virginia before moving into the Central
Appalachians. Norfolk VA reported houses destroyed, trees uprooted, and
crops leveled to the ground. (David Ludlum)
...1898...
A two hour thunderstorm deluged Atlanta GA with 4.32 inches of rain. More
than a foot of water flooded Union Depot. Many street car motors burned out
while trying to run through flooded streets. It grew so dark before the
afternoon storm that gas lights were needed. (The Weather Channel)
...1923...
Sheridan WY was drenched with 4.41 inches of rain, an all-time 24 hour
record for that location. Associated flooding washed out 20 miles of
railroad track. (22nd-23rd) (The Weather Channel)
...1987...
Thunderstorms produced a record ten inches of rain in six and a half hours
at Minneapolis MN, including 5.26 inches in two hours. Flash flooding
claimed two lives and caused 21.3 million dollars damage. Streets in
Minneapolis became rushing rivers, parking lots became lakes, and storm
sewers spouted like geysers. A tornado hit Maple Grove MN causing five
million dollars damage. Baseball size hail was reported at Olivia MN. (The
National Weather Summary) (Storm Data)
...1988...
Thunderstorms produced severe weather in Lower Michigan and northern Ohio,
over eastern sections of the Dakotas, and over the Central High Plains
Region. Showers and thunderstorms soaked Wilmington NC with another two
inches of rain, following six and a half inches the previous day. (The
National Weather Summary)
...1989...
Morning thunderstorms in the central U.S. drenched central Oklahoma with up
to six inches of rain. Afternoon thunderstorms produced wind gusts to 85
mph at Fort Smith AR. Evening thunderstorms over Florida spawned a tornado
which touched down three times in south Fort Myers causing nearly three
quarters of a million dollars damage. (The National Weather Summary) (Storm
Data)


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