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Johnson County, IL Weather and Climate Synopsis

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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 JOHNSON County
Issued at 100 AM CDT MON JUL 23 2018

SOUTH-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     FAIR      68  66  93 NW6       29.87F                  
6HR MIN TEMP:  68; 6HR MAX TEMP:  77; 6HR PCP:  0.03;                

CAIRO*         FAIR      69  66  90 NW6       29.86F                  
EFFINGHAM*     FAIR      69  68  99 NW5       29.90S FOG              
MARION         FAIR      71  69  93 CALM      29.88F                  
MT. VERNON     FAIR      70  67  90 N3        29.88F                  
CENTRALIA*     MOCLDY    69  69  98 CALM      29.88F                  
SALEM*         FAIR      69  67  94 N3        29.89S                  
METROPOLIS*    FAIR      71  67  89 N5        29.86F                  

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 JOHNSON County,IL

316 PM CDT Sun Jul 22 2018

 DAY ONE  This Afternoon and Tonight

There will be a chance of thunderstorms through early this evening
across the east. Lightning and brief heavy rain will be the 
primary hazards.

 DAYS TWO THROUGH SEVEN  Monday through Saturday

The chance of thunderstorms will increase toward the end of the
week with the best chance on Saturday. At this time, severe 
weather is not expected.

 SPOTTER INFORMATION STATEMENT  

Spotter activation will not be needed.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For JOHNSON County, IL
308 PM CDT Sun Jul 22 2018

TONIGHT
Mostly cloudy. Lows in the upper 60s. North winds 5 to 10 mph.

MONDAY
Partly sunny. Highs in the mid 80s. North winds around 10 mph.

MONDAY NIGHT
Mostly clear. Lows in the upper 60s. North winds around 5 mph.

TUESDAY
Mostly sunny. Highs in the upper 80s. North winds 5 to 10 mph.

TUESDAY NIGHT
Mostly clear. Lows in the upper 60s. North winds 5 to 10 mph.

WEDNESDAY
Mostly sunny. Highs in the upper 80s.

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

THURSDAY
Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs around 90.

THURSDAY NIGHT
Partly cloudy. Lows in the upper 60s.

FRIDAY
Partly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the upper 80s.

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

SATURDAY
Partly sunny with a 40 percent chance of showers and thunderstorms. Highs in the mid 80s.

SATURDAY NIGHT
Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows in the upper 60s.

SUNDAY
Showers and thunderstorms likely in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 70 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