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Chance of scattered showers and thunderstorms on Wednesday, April 23, 2025, especially between 1:00 p.m. and 5:00 p.m. in Arlington Heights and surrounding communities. Scattered showers/storms are forecast to lift near and north of Interstate 80 this morning. diminish south of I-88 with chances lingering scattered thundershowers around I-88 and north through the afternoon hours.
Rainfall totals will generally range between a tenth and one-half inch.
The period of warm weather will continue through Friday, briefly turning cooler on Saturday before temperatures turn even warmer early next week.
An active spring storm track will take aim at the Lower Great Lakes next week, bringing the possibility of severe weather.
Weather Radarat 10:15 a.m. shows precipitation with some embedded thunderstorms moving west to east.
See also Arlingtoncardinal.com/clouds
A cluster of gusty showers and thunderstorms will move east across northeast IL and northwest IN this morning. Localized wind gusts up to 50 mph, heavy downpours, and frequent lightning are the main threats. #ILwx #INwx pic.twitter.com/IYmaYypH4w
— NWS Chicago (@NWSChicago) April 23, 2025
O’HARE FORECAST …
Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. South southeast wind 5 to 10 mph. Chance of precipitation is 40%.
Wednesday Night: Partly cloudy, with a low around 53. South southeast wind around 5 mph.
Thursday: Mostly sunny, with a high near 72. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday Night: A 50 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 50. Northeast wind 5 to 10 mph becoming east southeast after midnight.
Friday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 68. South wind 5 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Friday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 44.
Saturday: Mostly sunny, with a high near 56.
Saturday Night: Partly cloudy, with a low around 44.
Sunday: Mostly sunny, with a high near 68.
Sunday Night: Partly cloudy, with a low around 55.
Monday: Partly sunny, with a high near 81.
Monday Night: A chance of showers. Mostly cloudy, with a low around 66.
Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 82.
U.S. HIGH AND LOW TEMPERATURE
(for the contiguous United States)
NWS Weather Prediction Center, College Park, MD
Issued 8 am EDT Wednesday, April 23, 2025
High Temperature for Tuesday, April 22, 2025
(as received by 8 am EDT April 23)
103 at Rio Grande Village, TX
Low Temperature for Wednesday, April 23, 2025
(as received by 8 am EDT April 23)
15 at Burgess Junction, WY
15 at 4 miles southwest of Richel Lodge, MT
POLLEN COUNT …
LOYOLA MEDICINE ALLERGY COUNT
x.com/LoyolaAllergy
Loyola Medicine Allergy Count for 4-23-2025
Trees – High – Cottonwood, Maple
Grass – Moderate
Weeds – Absent
Ragweed – Absent
Mold – Moderate
LAKE TEMPS …
SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
ISSUED BY NATIONAL WEATHER SERVICE LINCOLN IL
908 AM CDT Wed Apr 23 2025
LAKE MICHIGAN WATER TEMPERATURES…
CHICAGO SHORE………..50.**
CHICAGO CRIB…………52.**
MICHIGAN CITY………..48.**
SOUTH MID LAKE BUOY…..40.**
&&
M IS FOR MISSING DATA THAT IS NORMALLY AVAILABLE.
THE MICHIGAN CITY WATER TEMPERATURE SENSOR IS LOCATED AT A WATER INTAKE ONE MILE OFFSHORE AND 60 FEET BELOW THE WATER SURFACE. IT IS READ EVERY DAY OF THE YEAR.
april.chicagoweatherstation.com
Chicago Weather Forecast for your MAC/PC/TABLET includes surrounding suburbs.
^^ MOBILE? USE VOICE MIC ^^
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Area Forecast Discussion
National Weather Service
Chicago/Romeoville, IL
Issued by National Weather Service
Lincoln IL 933 AM CDT Wed Apr 23 2025
.KEY MESSAGES…
– Scattered showers/storms to lift near and north of Interstate 80 this morning. Rainfall totals will generally range between a tenth and one-half inch.
– The stretch of warm weather will continue, pausing briefly on Saturday before temperatures turn even warmer early next week.
– An active spring storm track will take aim at the Lower Great Lakes next week, bringing the prospect for severe weather.
&&
.UPDATE… Issued at 933 AM CDT Wed Apr 23 2025
Updated precipitation chances and sky cover primarily with the morning updates. Still expect showers and isolated thunderstorms to diminish south of I-88 generally…with chances lingering around I-88 and north through the afternoon hours.
NWS Lincoln
&&
.DISCUSSION… Issued at 403 AM CDT Wed Apr 23 2025
.Near Term…(through this afternoon) A cluster of elevated thunderstorms continues to lift north of the I-80 corridor early this morning in tandem with the nose of a modest 850-mb jet. A quick glance at the IR satellite reveals warming cloud tops as this convective activity begins to outpace the meager instability, and this trend will continue as the cluster lifts further north throughout the morning. Still, we could see some pretty efficient rain rates, with nearby radars depicting rates of 0.5-1″/hr. This lines up reasonably well with recent HREF 3-hr PMM QPF guidance, which offers 0.1″-0.5″ with this activity. One byproduct of these early morning storms is its associated convective debris/outflow which may result in a busted temperature forecast this afternoon. A few of the hi-res guidance, namely the HRRR, continue to hint at this possibility, even offering additional showery activity this afternoon north of I-88 as subtle mid-level shortwave energy interacts with a lingering sfc boundary. Areas south of I-80 should remain dry and easily reach the upper 70s this afternoon, while areas north of I-88 may struggle to breach the upper 60s.
.Short Term…(Tonight through Saturday) A pocket of mid-level dry air will move across the area tonight through Thursday, keeping rain chances at bay. Continued warm advection will push temperatures near 80 degrees in areas south of I-80 Thursday afternoon. The joke will once again be on areas north of I-88, but particularly along the lakefront, as a backdoor front sags into the lower Great Lakes region. The net effect will be sharp temperature gradient across our CWA, with lower 70s north of I-88 and lower 60s smack-up against the lakeshore. A similar trend then continues for Friday as the east- west front stalls in the vicinity of I-80.
Rain chances re-emerge Friday morning or Friday afternoon as mid-level shortwave energy and weak sfc low pressure glide along the stationary front. Overall, the vertical moisture profile with this activity looks fairly paltry with some residual mid-level dry air in place. While this setup doesn`t appear like it will deliver much rain, there is an axis of modest MLCAPE (500-1000 J/kg) near and south of the front where convective precip may overachieve our current QPF (< 0.5") expectations. Much cooler temperatures will spill across the region Friday night into Saturday as a robust mid-level trough digs across the Upper-Mississippi Valley and helps flush our lingering front well to the south. Temperatures Saturday afternoon will only warm into the lower 60s inland, and lower 50s along the lakefront. .Long Term...(Sunday through Tuesday) After a seasonably chilly Saturday, temperatures bounce warmer by Sunday as a ridge of high pressure quickly builds across the Plains ahead of a deep western trough. An impressive warm advection regime will push temperatures into the 70s by Sunday and into the lower 80s Monday & Tuesday. Of course, we can`t surge into the 80s this time of year without it being accompanied with gusty southerly winds. A quick glance at GEFS/EPS guidance supports mean wind gusts around 30-40 mph during this time as the surface pressure gradient tightens ahead of an impending storm system. At this juncture, widespread thunderstorm activity looks possible late Monday and through Tuesday, and this idea is stoked by multiple machine- learning tools which highlight the Mid- Mississippi Valley and lower Great Lakes regions for severe weather. NWS Lincoln && .AVIATION /12Z TAFS THROUGH 18Z THURSDAY/... Issued at 625 AM CDT Wed Apr 23 2025 Forecast concerns for the terminals... - Scattered showers remain a possibility (40% chance) through about 15z/10am this morning. - Generally light surface winds (5-10 kts) will oscillate between southwest and southeast through this evening. Showers and thunderstorms will continue to exit the regional terminals this morning, leaving behind erratic surface winds. Short-term model guidance is in reasonable agreement that winds will oscillate between southwest and southeast this afternoon, becoming variable for a time tonight before adopting an easterly component by Thursday morning. Otherwise, clearing skies later this morning will result in VFR conditions through the remainder of the TAF period. NWS Lincoln && .LOT WATCHES/WARNINGS/ADVISORIES... IL...None. IN...None. LM...None.