Stephenson 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

NORTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         SUNNY     87  57  35 SW15G22   29.79S HX  86  TC  31   
STERLING*      MOSUNNY   86  60  41 VRB6      29.81S HX  86  TC  30   

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

.TONIGHT...Sunny, then becoming partly cloudy this evening, then
becoming mostly clear. A slight chance of showers and
thunderstorms this evening. Lows in the upper 50s. Southwest
winds 10 to 15 mph, becoming northwest 5 to 10 mph after
midnight. Chance of rain 20 percent. 
.SUNDAY...Sunny. Highs in the lower 80s. Northeast winds around
10 mph, diminishing to around 5 mph in the afternoon. 
.SUNDAY NIGHT...Mostly cloudy. A chance of showers after
midnight. Lows in the lower 60s. Southeast winds 5 to 10 mph.
Chance of rain 40 percent. 
.MONDAY...Partly sunny in the morning, then becoming mostly
cloudy. A chance of thunderstorms. A chance of showers in the
morning, then showers likely in the afternoon. More humid with
highs in the lower 80s. South winds 10 to 15 mph with gusts up to
25 mph. Chance of rain 70 percent. 
.MONDAY NIGHT...Showers likely. Thunderstorms likely, mainly in
the evening. Lows in the lower 60s. South winds 5 to 10 mph.
Chance of rain 70 percent. 
.TUESDAY...A chance of thunderstorms. A chance of showers in the
morning, then showers likely in the afternoon. Highs in the lower
80s. Chance of rain 70 percent. 
.TUESDAY NIGHT...Showers with thunderstorms likely in the
evening, then a chance of showers and thunderstorms after
midnight. Lows in the mid 50s. Chance of rain 90 percent. 
.WEDNESDAY...Mostly sunny with a 40 percent chance of showers.
Not as warm with highs in the upper 60s. 
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows in the lower
50s. Highs in the mid 70s. 
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. 
.FRIDAY...Mostly sunny. A chance of showers in the afternoon.
Highs in the mid 70s. Chance of rain 30 percent. 
.FRIDAY NIGHT...Partly cloudy. A chance of showers and
thunderstorms in the evening, then a chance of showers after
midnight. Lows in the lower 50s. Chance of rain 40 percent. 
.SATURDAY...Partly sunny with a 40 percent chance of showers.
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

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)