Washington 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

SOUTH-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     PTSUNNY   83  65  54 N6        29.88F HX  85  TC  28   
CAIRO*         MOSUNNY   81  64  57 NE3       29.87F HX  82  TC  27   
MARION         PTSUNNY   81  66  61 N3        29.88F HX  83  TC  27   
MT. VERNON     SUNNY     82  62  50 CALM      29.89F HX  83  TC  28   
CENTRALIA*     SUNNY     81  62  52 CALM      29.89S HX  82  TC  27   
SALEM*         PTSUNNY   82  60  46 CALM      29.89S HX  83  TC  28   
METROPOLIS*    PTSUNNY   80  62  53 CALM      29.88S HX  82  TC  27   

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

.REST OF TODAY...Sunny. Highs in the lower 80s. Southeast winds
around 5 mph. 
.TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the
lower 60s. South winds around 5 mph. 
.SUNDAY...Sunny. Highs in the upper 80s. Southwest winds around
5 mph, becoming south in the afternoon. 
.SUNDAY NIGHT...Mostly clear. Lows in the mid 60s. South winds
around 5 mph. 
.MONDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 80s. South winds
5 to 10 mph. Chance of rain 20 percent. 
.MONDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s. Chance of rain 30 percent. 
.TUESDAY...Sunny. A slight chance of showers and thunderstorms in
the morning, then a chance of showers and thunderstorms in the
afternoon. Highs in the upper 80s. Chance of rain 30 percent. 
.TUESDAY NIGHT...Showers likely. Thunderstorms likely, mainly in
the evening. Lows in the upper 60s. Chance of rain 60 percent. 
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. A chance of
showers and thunderstorms. Highs in the mid 80s. Lows in the
upper 50s. Chance of rain 50 percent. 
.THURSDAY...Mostly sunny. 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 upper 70s. Chance of
rain 30 percent. 
.THURSDAY NIGHT...Partly cloudy with a chance of showers. A
chance of thunderstorms, mainly in the evening. Lows around 60.
Chance of rain 30 percent. 
.FRIDAY...Mostly sunny with a chance of showers with a slight
chance of thunderstorms. Highs around 80. Chance of rain
40 percent. 

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

Saturday May 18, 2024 the 139th Day of Year

---------------------------------------------------
SUN
Declination 19.880000
Distance 0.999717 AU
Rise 06:41 EDT Set 21:11 EDT
Transit Meridian 13:55 EDT
Civil Twilight Begins 06:11 EDT Ends 21:41 EDT

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

////////////////////////////
MAY 18TH...HISTORIC WEATHER EVENTS
...1825...
A tornado (said to have crossed all of the state of Ohio) smashed into the
log cabin settlement of Burlington, northeast of Columbus. (David Ludlum)
...1960...
Salt Lake City UT received an inch of snow. It marked their latest
measurable snowfall of record. (The Weather Channel)
...1980...
Mount Saint Helens (in Washington State) erupted spewing ash and smoke
sixty-three thousand feet into the air. Heavy ash covered the ground to the
immediate northwest, and small particles were carried to the Atlantic
coast. (David Ludlum)