Grundy County Weather and Climate Synopsis



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36 Hr. Forecast Map
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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

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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 GRUNDY County
Issued at 800 AM CDT FRI APR 26 2024

NORTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHICAGO-OHARE PTSUNNY 49 33 54 SE12 30.14F TC 9 CHICAGO-MIDWAY PTSUNNY 49 32 52 SE12 30.15F TC 9 AURORA CLOUDY 47 34 60 E13 30.11F TC 8 JOLIET* PTSUNNY 48 36 62 SE10G17 30.14F TC 9 WAUKEGAN PTSUNNY 45 33 63 SE10 30.17R TC 7 DUPAGE AIRPORT PTSUNNY 48 33 56 SE10 30.12F TC 9 KANKAKEE* PTSUNNY 46 36 66 SE17 30.13F TC 8 WHEELING PTSUNNY 47 34 60 SE7 30.17F TC 8 MORRIS* PTSUNNY 47 36 67 SE13 30.10F TC 8 ROMEOVILLE* SUNNY 48 36 61 E13G20 30.15F TC 9 LANSING* MOSUNNY 46 36 68 SE13 30.17F TC 8 NORTHERLY ISL* N/A 48 37 65 E6 N/A TC 9

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 800am CDT, Friday April 26, 2024

Across Illinois...temperatures are near 49 degrees north and near 54 degrees south. Current sky conditions are partly sunny north and cloudy south. In the north, relative humidity is near 54%, and the dew point is near 33 degrees. In the south, relative humidity is near 100%, and the dew point is near 54 degrees. Winds are from the southeast at 12 mph north, where conditions are favorable for spraying. Winds are unavailable central. Winds are from the east at 14 mph south, where conditions are not favorable for spraying due to strong winds. Based on current available observations, the highest temperature is 110/ degrees at Northerly Island. The lowest temperature is 45 degrees at Waukegan.

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 GRUNDY County,IL
425 AM CDT Fri Apr 26 2024 /525 AM EDT Fri Apr 26 2024/ DAY ONE Today and Tonight. Weather hazards expected Limited Thunderstorm Risk...with an associated: Limited Hail Risk...up to Quarter size. Limited Damaging Wind Risk...up to 60 mph. DISCUSSION Strong to marginally severe storms may persist into portions of the area late tonight, mainly west of a Rockford to Pontiac, IL line. DAYS TWO THROUGH SEVEN Saturday through Thursday. Saturday Limited Severe Thunderstorm Risk. Limited Flooding Risk. Sunday Limited Severe Thunderstorm Risk. Monday through Thursday Limited Thunderstorm Risk. DISCUSSION Multiple rounds of showers and thunderstorms are expected over the weekend, some of which could be severe late Saturday and again Sunday night. SPOTTER INFORMATION STATEMENT Spotter activation will not be necessary through tonight. GENERAL STORM MOTION OF THE DAY: Moving toward the northeast at 45 mph.
NWS Severe Weather Map , Convective Outlook

7-Day Forecast For GRUNDY County, IL
333 AM CDT Fri Apr 26 2024 TODAY
Mostly cloudy. A chance of showers in the morning, then showers likely and a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Southeast winds 10 to 20 mph with gusts up to 30 mph. Chance of precipitation 70 percent.
TONIGHT
Showers likely with a chance of thunderstorms. Turning warmer and more humid with lows around 60. South winds 10 to 20 mph with gusts up to 30 mph. Chance of precipitation 70 percent.
SATURDAY
Mostly cloudy with a 20 percent chance of thunderstorms. Highs around 80. South winds 10 to 20 mph with gusts up to 40 mph.
SATURDAY NIGHT
Mostly cloudy with a 50 percent chance of thunderstorms. Unseasonably mild. Lows in the mid 60s. South winds 10 to 20 mph with gusts up to 30 mph.
SUNDAY
Mostly cloudy with a 50 percent chance of thunderstorms. Highs in the upper 70s. South winds 15 to 25 mph with gusts up to 40 mph.
SUNDAY NIGHT
Showers likely with a chance of thunderstorms in the evening, then showers with a chance of thunderstorms after midnight. Lows in the mid 60s. Chance of precipitation 80 percent.
MONDAY
Showers likely with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of precipitation 70 percent.
MONDAY NIGHT
Mostly cloudy with a chance of thunderstorms in the evening, then partly cloudy with a slight chance of thunderstorms after midnight. Lows in the mid 50s. Chance of precipitation 40 percent.
TUESDAY
Mostly sunny. Highs in the upper 70s.
TUESDAY NIGHT
Partly cloudy. Lows in the upper 50s.
WEDNESDAY
Mostly sunny in the morning, then partly cloudy with a chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 40 percent.
WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A 40 percent chance of thunderstorms. Lows in the mid 50s.
THURSDAY
Partly cloudy with a 30 percent chance of thunderstorms. Highs in the lower 70s.
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 MAY 1-MAY 5 MAY 3-MAY 9 JUN JUN-AUG ----------- ----------- -------- --------- Temperature: Above Above Precipitation: 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 April 26, 2024 the 117th Day of Year --------------------------------------------------- SUN Declination 14.010000 Distance 0.999718 AU Rise 07:04 EDT Set 20:50 EDT Transit Meridian 13:56 EDT Civil Twilight Begins 06:37 EDT Ends 21:17 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 26TH HISTORIC WEATHER EVENTS ...1834... Killer frosts were reported in the Deep South. The frost was quite severe around Huntsville AL, and highlighted a backward spring in the South that year. (David Ludlum) ...1978... An unusually strong occluded front swept out of the Gulf of Alaska and produced the first April thunderstorm of record at Fairbanks. Pea size hail fell northeast of Fairbanks from thunderstorms whose tops were less than 8000 feet. (The Weather Channel) ...1984... Severe thunderstorms associated with an intense cyclone spawned a total of forty-seven tornadoes in two days from Louisiana to Upper Michigan. The tornadoes killed 16 persons and injured 259 others. (Storm Data)

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