DeKalb County Weather and Climate Synopsis



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36 Hr. Forecast Map
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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
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 DEKALB County
Issued at 1000 PM CDT THU APR 18 2024

NORTH CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ROCKFORD MOCLDY 49 46 90 NW7 30.05S TC 9 FREEPORT* N/A 45 42 90 CALM 30.06R TC 7 ROCHELLE* MOCLDY 47 45 91 N10 30.04R TC 9 DE KALB* CLOUDY 47 45 90 N8 30.02S TC 9 PERU* CLOUDY 50 47 88 N14 30.02R TC 10

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 1000pm CDT, Thursday April 18, 2024

Across Illinois...temperatures are near 49 degrees north, near 56 degrees central, and near 61 degrees south. Current sky conditions are mostly cloudy north, light rain central, and cloudy south. In the north, relative humidity is near 90%, and the dew point is near 46 degrees. In the central part of the state, relative humidity is near 97%, and the dew point is near 55 degrees. In the south, relative humidity is near 97%, and the dew point is near 60 degrees. Winds are from the northwest at 7 mph north, where conditions are favorable for spraying. Winds are from the northwest at 15 mph central, where conditions are not favorable for spraying due to strong winds and light rain. Winds are from the west at 5 mph south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 350/ degrees at Northerly Island. The lowest temperature is 45 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 DEKALB County,IL
942 PM CDT Thu Apr 18 2024 /1042 PM EDT Thu Apr 18 2024/ DAY ONE Tonight. Weather hazards expected Limited Thunderstorm Risk late in the evening. DISCUSSION Occasional lightning strikes remain possible east of Interstate 57 and south of Interstate 80 through midnight. DAYS TWO THROUGH SEVEN Friday through Wednesday. Friday Night through Sunday Night Limited to Elevated Frost and or Freeze Risk outside of Chicago. Monday Night and Tuesday Limited Thunderstorm Risk. SPOTTER INFORMATION STATEMENT Spotter activation will not be necessary through tonight. GENERAL STORM MOTION OF THE DAY: Moving toward the east at 30 mph.
NWS Severe Weather Map , Convective Outlook

7-Day Forecast For DEKALB County, IL
857 PM CDT Thu Apr 18 2024 REST OF TONIGHT
Mostly cloudy with scattered showers late in the evening, then partly cloudy after midnight. Lows in the upper 30s. North winds 10 to 15 mph. Gusts up to 25 mph after midnight. Chance of precipitation 50 percent.
FRIDAY
Sunny in the morning, then becoming partly cloudy. Highs in the mid 50s. West winds 10 to 20 mph with gusts up to 30 mph.
FRIDAY NIGHT
Partly cloudy in the evening, then clearing. Patchy frost after midnight. Lows in the lower 30s. West winds 10 to 15 mph.
SATURDAY
Mostly sunny in the morning, then becoming mostly cloudy. Patchy frost in the morning. Highs around 50. Northwest winds 10 to 20 mph. Gusts up to 25 mph in the afternoon.
SATURDAY NIGHT
Partly cloudy in the evening, then clearing. Areas of frost after midnight. Lows in the lower 30s. West winds 10 to 15 mph.
SUNDAY
Areas of frost in the morning. Sunny. Highs in the upper 50s.
SUNDAY NIGHT
Clear. Areas of frost after midnight. Lows in the mid 30s.
MONDAY
Mostly sunny in the morning, then becoming mostly cloudy. Highs in the lower 60s.
MONDAY NIGHT
Cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 40s. Chance of precipitation 70 percent.
TUESDAY
Mostly cloudy. Showers likely, mainly in the morning. Highs in the lower 60s. Chance of precipitation 60 percent.
TUESDAY NIGHT
Partly cloudy in the evening, then clearing. Lows in the mid 30s.
WEDNESDAY
Mostly sunny. Highs in the mid 50s.
WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s.
THURSDAY
Partly cloudy in the morning, then becoming mostly cloudy. Highs in the upper 50s.
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 24-28 APR 26-MAY 2 JUN JUN-AUG ----------- ----------- -------- --------- Temperature: Precipitation: .... 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
Thursday April 18, 2024 the 109th Day of Year --------------------------------------------------- SUN Declination 11.360000 Distance 0.999719 AU Rise 07:15 EDT Set 20:42 EDT Transit Meridian 13:58 EDT Civil Twilight Begins 06:48 EDT Ends 21:09 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

APRIL 18TH HISTORIC WEATHER EVENTS ...1880... More than two dozen tornadoes were reported from Kansas and Arkansas to Wisconsin and Michigan. More than 100 persons were killed, including 65 persons at Marshfield MO. (David Ludlum) ...1906... A severe earthquake shook San Francisco, and unusual easterly winds spread fires destroying the city. (David Ludlum) ...1944... California experienced its worst hailstorm of record. Damage mounted to two million dollars as two consecutive storms devastated the Sacramento Valley destroying the fruit crop. (The Weather Channel) ...1957... A dust devil near Dracut MA lifted a small child three feet into the air, and rolled two other children on the ground. Fortunately none of the three were hurt. The dust devil was accompanied by a loud whistling sound as it moved westward. (The Weather Channel) ...1970... Rapid City SD received a record 22 inches of snow in 24 hours. (17th-18th) (The Weather Channel)

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