Sunday Hi 78, sunny to partly cloudy, winds WNW to NNE to SE, 6 to 9 to 2 MPH, G14-15 MPH 6p to 7p
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ARLINGTON HEIGHTS WEATHER
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IMPORTANT NOTE ON NWS DATA
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Sunday and Sunday Evening …
No Weather Hazards …
Pending
DISCUSSION…
Pending
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O’HARE FORECAST …
Forecast Beginning Sunday, May 21, 2023
MISSING/PENDING
CHICAGOWEATHERSTATION.COM
ChicagoWeatherStation.com I O’Hare Normal Temps/Precip I O’Hare Record Temps, Precip, Snow
WunderMap® with Temperature/Wind Data || Google: Arlington Heights Area Temps | US TEMPS
Midwest Cloud Cover with Arlington Heights Weather Forecast
ChicagoWeatherStation.com I O’Hare Normal Temps/Precip I O’Hare Record Temps, Precip, Snow
SUNLIGHT DATA FOR SECURITY, TRAFFIC SAFETY, AND SPORTS
SunCalc.net data with solar azimuth and trajectory, times for dawn, sunrise, solar noon, sunset, dusk …
NIGHT SKY THIS MONTH …
Backyard stargazers get a monthly guide to the northern hemisphere’s skywatching events with “Tonight’s Sky.” Check the night sky objects for this month and past months in the playlist from the Space Telescope Science Institute YouTube channel (Musical track The Far River written by Jonn Serrie, from the album And the Stars Go With You courtesy of New World Music Ltd).
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Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
1214 PM CDT Sun May 21 2023
.SHORT TERM… Issued at 330 AM CDT Sun May 21 2023
Through Monday…
Expansive surface high pressure will remain in control, bringing continued fair weather. Based off the RAP smoke forecast, the mid-upper level steering pattern should keep the Canadian wildfire smoke off to our north and east. Warming of the air mass will result in highs away from the lake cooling footprint in the upper 70s to around 80F today and probably 1-2F degrees warmer on Monday. Skies will be mostly clear today, with forecast soundings then indicating sufficient moisture between 800-700 mb on Monday for scattered high-based fair weather Cu at peak heating.
Light flow aloft and the sharp land-lake thermal gradient will support a steady inland march of the lake breeze in the afternoon. Monday`s southeasterly synoptic flow will enable an earlier inland push of the lake breeze and associated lake cooling, knocking temps back to the 60s. Good radiational cooling conditions tonight should support upper 40s-lower 50s lows outside of Chicago and mid-upper 50s in the city.
Castro/NWS Chicago
