How is the weather in Glenn, IL?

At 3:15 AM on Thu, Sep 18, 2025 it is 71 degrees Fahrenheit, feeling like 71 degrees.

Glenn, IL Weather Forecast and Current Conditions

71°F
Feels Like 71°F

Humidity 64% Dew Point 58°F Wind Calm 0 MPH Gusts 2 Barometer 30.02 in.762.5 mm

Solar Rad 0 w/m2

Report from 15.1 miles WNW of central Glenn at 3:15 AM Thu, Sep 18, 2025

Current Weather

71°F
Feels Like 71°F

Humidity 64% Dew Point 58°F Wind Calm 0 MPH Gusts 2 Barometer 30.02 in.762.5 mm

Solar Rad 0 w/m2

Report from 15.1 miles WNW of central Glenn at 3:15 AM Thu, Sep 18, 2025

Forecast at a Glance

ThuSep 18

95°

65°

FriSep 19

20%

91°

64°

SatSep 20

20%

89°

66°

SunSep 21

40%

88°

65°

MonSep 22

50%

83°

65°

TueSep 23

40%

83°

62°

WedSep 24

30%

82°

This Date in Weather History

1941 - One of the greatest aurora borealis or northern lights ever observed in the central Atlantic and mid-central portions of the U.S. occurred on the night of September 18-19th. The displays continued from twilight until just before dawn and were observed as far south as Florida and southern California.

Glenn 7 Day Weather Forecast Details

Thursday Sep 18

Day: Sunny, with a high near 95. South southeast wind around 2 mph.

Night: Partly cloudy. Low around 65, with temperatures rising to around 67 overnight. North northeast wind around 2 mph.

Friday Sep 19

Day: A slight chance of rain showers between 1pm and 4pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 91. Northwest wind around 3 mph. Chance of precipitation is 20%.

Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. North northeast wind around 2 mph. Chance of precipitation is 20%.

Saturday Sep 20

Day: A slight chance of rain showers before 7am. Mostly sunny, with a high near 89. South wind 1 to 5 mph. Chance of precipitation is 20%.

Night: A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South southwest wind around 3 mph.

Sunday Sep 21

Day: A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. South wind 2 to 8 mph.

Night: A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 3 to 7 mph.

Monday Sep 22

Day: A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 83. South southwest wind 5 to 10 mph.

Night: A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 3 to 7 mph.

Tuesday Sep 23

Day: A chance of showers and thunderstorms. Partly sunny, with a high near 83. Southwest wind 3 to 8 mph.

Night: A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 62. Southwest wind 2 to 6 mph.

Wednesday Sep 24

Day: A slight chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 82. West southwest wind 3 to 8 mph.

Sun & Moon Monthly

First Light 6:17 AM

Sunrise 6:44 AM

Sunset 7:03 PM

Last Light 7:29 PM

Moonrise 3:22 AM

Moonset 5:45 PM

Moon Phase

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