Grundy County, Illinois Weather and Climate Synopsis

Regional Hourly Observations Nowcast: 0-6 Hour Forecast Forecast: 7 Day Forecast Medium & Long Range Outlook Almanac Historical Facts

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A joint service of the UK Ag Weather Center and the National Weather Service.

Current Surface Map, [TWC], Yesterday's Highs , Lows
Map of 24 Hr Rainfall (7AM - 7AM EST), 7 Day Rainfall Animation

NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  MOSUNNY   60  48  64 N7        30.10S TC  16           
6HR MIN TEMP:  52; 6HR MAX TEMP:  60;                                

CHICAGO-MIDWAY PTSUNNY   61  46  57 NE8       30.10F TC  16           
6HR MIN TEMP:  54; 6HR MAX TEMP:  61;                                

AURORA         MOSUNNY   63  47  55 NE6       30.09F TC  17           
6HR MIN TEMP:  50; 6HR MAX TEMP:  63;                                

JOLIET*        MOSUNNY   64  49  58 N6        30.10F TC  18           
WAUKEGAN       MOSUNNY   54  45  71 E6        30.12R TC  12           
6HR MIN TEMP:  51; 6HR MAX TEMP:  55;                                

DUPAGE AIRPORT MOSUNNY   62  45  53 VRB5      30.09F TC  17           
6HR MIN TEMP:  51; 6HR MAX TEMP:  63;                                

KANKAKEE*      MOSUNNY   62  49  61 N3        30.10F TC  17           
WHEELING       MOSUNNY   57  46  66 NE6       30.13R TC  14           
6HR MIN TEMP:  52; 6HR MAX TEMP:  57;                                

MORRIS*        MOSUNNY   63  49  62 CALM      30.09S TC  17           
ROMEOVILLE*    MOSUNNY   61  48  63 VRB7      30.10F TC  16           
LANSING*       PTSUNNY   56  49  79 N7        30.12S TC  13           
NORTHERLY ISL*   N/A     54  46  74 NE8         N/A  TC  12           

Current Temperatures, Dewpoint Map, RH, Wind, Regional Obs, Surface 4-Panel
Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford

.TONIGHT...Mostly cloudy. Lows in the upper 40s. East winds 5 to
10 mph. 
.MONDAY...Mostly sunny. Highs in the mid 70s. East winds 5 to
10 mph. 
.MONDAY NIGHT...Mostly clear in the evening, then mostly cloudy
with thunderstorms likely after midnight. Lows in the lower 60s.
Southeast winds 10 to 15 mph. Chance of precipitation 70 percent.
.TUESDAY...Mostly cloudy with showers with a chance of
thunderstorms in the morning, then partly cloudy with a chance of
thunderstorms in the afternoon. Highs in the upper 70s. South
winds 10 to 15 mph in the morning, becoming southwest 10 to
20 mph in the afternoon. Gusts up to 30 mph. Chance of
precipitation 90 percent. 
.TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest
winds 10 to 15 mph. 
.WEDNESDAY...Partly cloudy in the morning, then mostly cloudy
with showers likely with a chance of thunderstorms in the
afternoon. Highs in the upper 70s. Chance of precipitation
60 percent. 
.WEDNESDAY NIGHT...Mostly cloudy. Thunderstorms likely, mainly in
the evening. Lows in the mid 50s. Chance of precipitation
70 percent. 
.THURSDAY...Partly cloudy. A slight chance of showers in the
morning, then a chance of showers with a slight chance of
thunderstorms in the afternoon. Highs in the mid 60s. Chance of
precipitation 40 percent. 
.THURSDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the upper 40s. 
.FRIDAY...Partly cloudy with a 30 percent chance of showers.
Highs in the mid 60s. 
.FRIDAY NIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the upper 40s. 
.SATURDAY...Partly cloudy. A chance of showers in the afternoon.
Highs in the mid 60s. Chance of precipitation 30 percent. 
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. 
.SUNDAY...Mostly sunny in the morning, then becoming partly
cloudy. Highs in the lower 70s. 

12-48 Hr Surface, 12-48 Hr ETA 500mb/Sfc, TWC Forecast, Fire Danger, Day 1 Precip, Day 2
NGM 60 Hr Forecast Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford ,

                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY     120 DAY    180 DAY
                                           NOV05   NOV05-JAN06 DEC05-FEB06 FEB06-APR06
                 -----------  -----------  --------  ---------  ---------  ---------
   Temperature:      Below        Below      Above     Normal     Normal     Normal
 Precipitation:      Below        Below     Normal     Normal     Normal     Normal

....  Medium and long range outlooks provided by NCEP/K. Thomas Priddy

Sunday May 05, 2024 the 126th Day of Year

---------------------------------------------------
SUN
Declination 16.690000
Distance 0.999718 AU
Rise 06:53 EDT Set 20:59 EDT
Transit Meridian 13:55 EDT
Civil Twilight Begins 06:25 EDT Ends 21:27 EDT

Calculations made for central point in the state.
Time in ET -- and will vary due to location and
elevation -- Priddy

///////////////////////////////
MAY 5TH...HISTORIC WEATHER EVENTS
...1917...
The same storm which a day earlier produced eight inches of snow in the Texas 
panhandle, produced a foot of snow at Denver CO, their heaviest snow
of record for the month of May. (David Ludlum)
...1930...
The temperature at College Park VA soared from 43 degrees to 93 degrees to
begin an exceptional heat wave. (Sandra and TI Richard Sanders - 1987)
...1987...
Unseasonably hot weather prevailed in the western U.S. A dozen cities in 
California reported record high temperatures for the date. Afternoon highs 
of 93 degrees at San Francisco, 98 degrees at San Jose, 100 degrees at 
Sacramento, and 101 degrees at Redding, were the warmest of record for so 
early in the season. The high of 94 degrees at Medford OR was also the 
warmest of record for so early in the season. (The National Weather 
Summary)
...1989...
Damage was in the millions as the funnel cut a swath across Cleveland, 
Lincoln, and Catawba counties in North Carolina. The F4 tornado killed 4 
and injured 52.
...1996...
Flash flooding occurred in Pike and Morgan counties Kentucky. Heavy rain 
produced flooding along route 460 near Cottle in Morgan county. 
However...the flooding was much worse in northern and eastern sections of 
Pike county...where damage was estimated at one million dollars. Up to two 
and a half inches of rain fell during a short period of time in Pike 
county. Forty to fifty bridges were washed out...numerous roads were 
flooded and automobiles were washed down creeks. The Varney elementary 
school suffered serious flood damage. (NWS Jackson, KY)