🌔 🌕 🌗 🌑 Waxing Gibbous Moon, sky cover overnight Thu. to Fri. 38% to 26% to 36%, winds SE to SSE 10 to 8 MPH, Low 51, 5a to 6a
NWS CHGO | NWS HRLY | /NWSchicago | 🌡
ARLINGTON HEIGHTS WEATHER
▴ forecast7 (Arl. Hts.) | RADAR | WIDE RADAR
IMPORTANT NOTE ON NWS DATA
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NIGHT FORECASTS …
NOTE: Keep in mind lunar rise and set times don’t always correspond with night weather and early morning lows because on some days during the month the moon is visible in the sky predominantly during the daytime hours.
Overnight Thursday to Friday …
No Weather Hazards expected …
No significant forecast challenges or concerns in the short term period.
DISCUSSION…
Mostly clear skies expected tonight, which should then give way to some increasing high cloudiness Friday as ridge builds over the area and plume of high level moisture associated with the subtropical jet is able to spread north into the area.
NOTE: Actual low was above the forecast low: 56°F actual, not 51°F.
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O’HARE FORECAST …
Forecast Beginning Thursday Night, May 04, 2023 …
Thursday Night: Partly cloudy, with a low around 51. South wind around 10 mph, with gusts as high as 15 mph.
Friday: Mostly sunny, with a high near 77. South wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night: Mostly cloudy, with a low around 55. South southeast wind around 10 mph.
Saturday: Partly sunny, with a high near 75. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
MondayA chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77.
Monday Night: A chance of showers. Mostly cloudy, with a low around 55.
Tuesday: A chance of showers. Mostly sunny, with a high near 72.
Tuesday Night: Partly cloudy, with a low around 52.
Wednesday: Mostly sunny, with a high near 71.
Wednesday Night: Partly cloudy, with a low around 53.
Thursday: Mostly sunny, with a high near 75.
O’Hare forecast archive and hourly weather observations archive are available HERE on the CARDINAL NEWS Magazine.
Arlingtoncardinal.com/moonphases
Arlingtoncardinal.com/nightsky
NIGHT SKY THIS MONTH …
Check the night sky objects for this month and past months in the playlist from the Space Telescope Science Institute YouTube channel Backyard stargazers get a monthly guide to the northern hemisphere’s skywatching events with “Tonight’s Sky” (Musical track The Far River written by Jonn Serrie, from the album And the Stars Go With You courtesy of New World Music Ltd. Musical track The Far River written by Jonn Serrie, from the album And the Stars Go With You courtesy of New World Music Ltd).
Telephoto lens, ISO 100, f/11, Shutter Speed 1/100 to 1/125 for the Moon.
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Telephoto lens, ISO 1600, f/11, Shutter Speed 2.5″ for the skyline. The skyline exposure was toned down, and brightness and contrast was adjusted in Photoshop.
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Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
1159 PM CDT Thu May 4 2023
.SHORT TERM… Issued at 202 PM CDT Thu May 4 2023
Through Friday night…
No significant forecast challenges or concerns in the short term period.
Mostly clear skies expected tonight, which should then give way to some increasing high cloudiness Friday as ridge builds over the area and plume of high level moisture associated with the subtropical jet is able to spread north into the area. Guidance in good agreement on 925mb temps 2-3C warmer than today, so as long as there are some breaks in the high cloudiness, high temps tomorrow should be several degrees warmer than today.
Pressure gradient will tighten up Friday, leading to a bit more of a fresh south wind with some gustiness during the late morning into the afternoon, particularly if temps get as warm as expected and there are indeed breaks in the cirrus. The stronger south winds should result in less inland penetration of the lake breeze, with lake cooling more confined to the immediate IL shore and inland a bit over the north shore.
Have mostly removed the small precip chances Friday into Friday night. Column is forecast to remain fairly dry and forcing nebulous with some fairly substantial height rises expected. Can`t rule out a light shower or sprinkle far western CWA Friday night, but overall it looks dry through Friday night.
– Izzi/NWS Chicago
