🌔 🌕 🌗 🌑 Waxing Gibbous Moon, sky cover overnight Tue. to Wed. 93% to 19% to 25%, clearing after 7p, winds NW 20 to 9 MPH, G31 to 16 MPH, 6p to 12a Wednesday, Low 38, 4a 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 Tuesday to Wednesday …
Weather Hazards expected …
Elevated Frost and Freeze Risk late tonight.
Temperatures are expected to drop into the lower and middle 30s tonight away from the heart of the Chicago urban area and the immediate Lake Michigan shore. Areas of frost are likely in these areas from late tonight through sunrise Thursday.
O’HARE FORECAST …
Forecast Beginning Tuesday Night, May 02, 2023 …
Tuesday Night: Cloudy during the early evening, then gradual clearing, with a low around 35. Breezy, with a north northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Wednesday: Mostly sunny, with a high near 58. North northwest wind around 10 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night: Partly cloudy, with a low around 41. East northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Thursday: Sunny, with a high near 67. South southwest wind 5 to 10 mph becoming east southeast in the afternoon.
Thursday Night: Partly cloudy, with a low around 50.
Friday: Partly sunny, with a high near 69.
Friday Night: Mostly cloudy, with a low around 51.
Saturday: Mostly sunny, with a high near 71.
Saturday Night: Partly cloudy, with a low around 53.
Sunday: A chance of showers. Partly sunny, with a high near 76.
Sunday Night: A chance of showers. Mostly cloudy, with a low around 59.
Monday: A chance of showers. Partly sunny, with a high near 79.
O’Hare forecast archive and hourly weather observations archive are available HERE on the CARDINAL NEWS Magazine.
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.
Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
1220 AM CDT Wed May 3 2023
.SHORT TERM… Issued at 205 PM CDT Tue May 2 2023
Through Wednesday night…
Gusty west-northwest winds persist across northern Illinois and northwestern Indiana this afternoon, as cloud cover increases from the north. Surface observations show gusts to 30-35 mph south and west of the Chicago metro area, with dew points mixing down into the mid-20s or so as forecast. Expect dew points to come back up a bit this evening. Expect a zone of light showers to develop late this afternoon through early this evening from western portions of the Chicago area into northwest Indiana along a weak zone of low level frontogenesis. These showers should be relatively short- lived, largely dissipating by around 9-10 pm. Expect fairly rapid clearing late this evening for most of the region, but with clouds persisting from near the lakeshore into northwest Indiana.
Temperatures from near to just above the freezing mark are forecast for Wednesday morning, with the coldest temperatures in the Rockford area. At this time, only patchy frost is anticipated, given at least some wind persisting through the overnight hours combined with dew points from the upper 20s to around 30 F. We won`t issue any frost or freeze headlines with this package, but those with any particularly sensitive vegetation in outlying areas west and north of Chicago may want to consider protecting it from tonight into Wednesday morning.
Dry conditions are forecast for Wednesday, with light winds and high temperatures warming into the low-mid 60s except near Lake Michigan. Light winds will continue into Wednesday night, with low temperatures in the upper 30s to around 40 degrees.