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


Williamson 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
858 PM CDT Wed Jul 31 2019

Cirrus clouds moved across western Illinois this evening, as a
band of rainfall slid through eastern Missouri. Temperatures late
evening were beginning to fall into the 60s.

The dry and seasonable weather pattern will continue through the
remainder of this week and into the weekend. As High pressure
slides toward the East Coast this weekend, temperatures will climb
back into the upper 80s to near 90 by Sunday.

Lows tonight will drop into the mid 50s to mid 60s. Highs Thursday
will peak in the upper 70s across northeast Indiana, increasing
southwest to the mid 80s in 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 WILLIAMSON County
Issued at 900 AM CDT FRI MAR 29 2024

SOUTH-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     SUNNY     58  37  45 SW9       30.11S TC  14           
CAIRO*         SUNNY     55  39  55 W7        30.16R TC  13           
EFFINGHAM*     PTSUNNY   52  39  63 S7        30.10R TC  11           
MARION         MOSUNNY   57  39  51 SW10      30.12S TC  14           
MT. VERNON     SUNNY     54  42  64 SW8       30.11R TC  12           
CENTRALIA*     SUNNY     55  38  53 SW8       30.09S TC  13           
SALEM*         MOSUNNY   55  39  55 SW7       30.09S TC  13           
METROPOLIS*    SUNNY     53  38  57 SW5       30.15F TC  12           

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 900am CDT, Friday March 29, 2024

Across Illinois...temperatures are near 38 degrees north, near 49 degrees central, and near 54 degrees south. Current sky conditions are partly sunny north, mostly sunny central, and sunny south. In the north, relative humidity is near 48%, and the dew point is near 20 degrees. In the central part of the state, relative humidity is near 63%, and the dew point is near 37 degrees. In the south, relative humidity is near 64%, and the dew point is near 42 degrees. Winds are from the east at 7 mph north, where conditions are favorable for spraying. The wind chill is near 33 degrees north. Winds are calm central, where conditions are favorable for spraying. Winds are from the southwest at 8 mph south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 58 degrees at Carbondale. The lowest temperature is 36 degrees at Freeport.


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 WILLIAMSON County,IL

322 AM CDT Fri Mar 29 2024 /422 AM EDT Fri Mar 29 2024/

 DAY ONE  Today and Tonight

Fire danger will heighten this afternoon, mainly for western 
Kentucky from the Land Between the Lakes eastward, where relative
humidity values drop into the 20s percentile amidst very dry
conditions.

 DAYS TWO THROUGH SEVEN  Saturday through Thursday

A chance of storms returns to the forecast late this weekend into
early next week. The best chance for stronger storms is with a
cold front's approach and passage late Monday through Tuesday.

 SPOTTER INFORMATION STATEMENT  

Spotters should stay tuned to the latest forecasts and updates.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For WILLIAMSON County, IL
845 AM CDT Fri Mar 29 2024

TODAY
Sunny. Highs in the lower 70s. Southwest winds 10 to 15 mph.

TONIGHT
Mostly cloudy. A slight chance of showers after midnight. Lows in the mid 50s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent.

SATURDAY
Mostly sunny. Highs in the mid 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph.

SATURDAY NIGHT
Mostly cloudy. Lows in the upper 50s. Southwest winds 5 to 10 mph.

SUNDAY
Partly sunny. Highs in the upper 70s. South winds 15 to 20 mph with gusts up to 30 mph.

SUNDAY NIGHT
Mostly cloudy and breezy. Lows in the mid 60s.

MONDAY
Mostly cloudy in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 50 percent.

MONDAY NIGHT
A chance of thunderstorms. Showers. Lows in the mid 50s. Chance of rain 80 percent.

TUESDAY
Partly sunny. A chance of showers and thunderstorms in the morning. Near steady temperature in the upper 50s. Chance of rain 50 percent.

TUESDAY NIGHT AND WEDNESDAY
Partly cloudy. Lows in the upper 30s. Highs in the mid 50s.

WEDNESDAY NIGHT AND THURSDAY
Mostly clear. Lows in the mid 30s. Highs in the lower 60s.

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 
                 APR 3-APR 7 APR 5-APR 11    JUN       JUN-AUG                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above      Above     Normal                      
 Precipitation:      Below        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 March 29, 2024 the 89th Day of Year

---------------------------------------------------
SUN
Declination 3.980000
Distance 0.999720 AU
Rise 06:46 EDT Set 19:21 EDT
Transit Meridian 13:03 EDT
Civil Twilight Begins 06:20 EDT Ends 19:47 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

MARCH 29TH
HISTORIC WEATHER EVENTS
...1886...
Atlanta GA was drenched with a record 7.36 inches of rain in 24 hours. (The
Weather Channel)
...1920...
Clear Spring MD received 31 inches of snow in 24 hours to establish a state
record. (Sandra and TI Richard Sanders - 1987)
...1921...
The temperature in Washington D.C. dropped from 82 degrees to 26 degres
thus ending an early spring. (David Ludlum)
...1935...
A severe duststorm blanketed Amarillo TX for 84 hours. During one six hour
period the visibility was near zero. (28th-31st) (The Weather Channel)
...1945...
Providence RI hit 90 degrees to establish a March record for the New
England area. (The Weather Channel)

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