St Clair 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

SOUTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          PTSUNNY   68  55  64 CALM      30.06S TC  20           
BELLEVILLE     PTSUNNY   70  58  66 NE6       30.03F TC  21           
SPARTA*        CLOUDY    70  60  71 NE5       30.05F TC  21           

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

.THIS AFTERNOON...Mostly cloudy and cooler. Near steady
temperature around 70. Northeast winds around 5 mph. 
.TONIGHT...Cloudy with a chance of showers with a slight chance
of thunderstorms. Lows in the upper 50s. East winds 5 to 10 mph.
Chance of rain 50 percent. 
.MONDAY...Cloudy in the morning, then becoming partly sunny. A
slight chance of thunderstorms. A chance of showers, mainly in
the morning. Highs in the upper 70s. East winds 5 to 10 mph.
Chance of rain 40 percent. 
.MONDAY NIGHT...Partly cloudy in the evening, then showers with a
chance of thunderstorms after midnight. Lows in the lower 60s.
Southeast winds 10 to 15 mph. Chance of rain near 100 percent. 
.TUESDAY...Partly sunny in the morning, then clearing. A chance
of thunderstorms. Showers, mainly in the morning. Highs in the
lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph.
Chance of rain near 100 percent. 
.TUESDAY NIGHT...Mostly clear. A slight chance of showers and
thunderstorms in the evening. Lows in the upper 50s. Chance of
rain 20 percent. 
.WEDNESDAY...Mostly sunny. A chance of showers with a slight
chance of thunderstorms in the morning, then showers with
thunderstorms likely in the afternoon. Highs in the lower 80s.
Chance of rain 90 percent. 
.WEDNESDAY NIGHT...Partly cloudy. A chance of showers and
thunderstorms in the evening. Lows in the upper 50s. Chance of
rain 50 percent. 
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs in the mid
70s. Lows in the lower 50s. 
.FRIDAY...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 60s. Chance of
rain 30 percent. 
.FRIDAY NIGHT...Mostly clear. Lows around 50. 
.SATURDAY...Sunny. A slight chance of showers and thunderstorms
in the afternoon. Highs in the lower 70s. Chance of rain
20 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

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)