Forecast for Algonquin, IL | Forecast Periods: 14
Saturday
Mar 14
2026
Algonquin, IL
Updated: 6:56 PM CDT
33°F
Slight Chance Rain Showers
15 mph ESE
Precipitation: 22%
A slight chance of rain showers after 11pm. Cloudy. Low around 33, with temperatures rising to around 36 overnight. East southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Hourly Forecast
Extended Forecast
Sunday
Sun, Mar 15
57°F
Showers And Thunderstorms
15 mph S
Precipitation: 92%
A chance of rain showers before 10am, then showers and thunderstorms. Cloudy, with a high near 57. South wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Sun, Mar 15
20°F
Sleet then Snow
25 mph NW
Precipitation: 100%
Showers and thunderstorms before 10pm, then sleet and rain and snow between 10pm and 11pm, then snow and a chance of sleet between 11pm and 1am, then snow and areas of blowing snow. Cloudy. Low around 20, with temperatures rising to around 23 overnight. Northwest wind 25 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Monday
Mon, Mar 16
23°F
Snow And Areas Of Blowing Snow
25 mph NW
Precipitation: 91%
Snow and areas of blowing snow before 4pm, then patchy blowing snow and a slight chance of snow. Cloudy, with a high near 23. Wind chill values as low as 1. Northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Monday Night
Mon, Mar 16
8°F
Patchy Blowing Snow then Mostly Cloudy
10 mph WNW
Precipitation: 18%
Patchy blowing snow and a slight chance of snow before 7pm. Mostly cloudy, with a low around 8. West northwest wind 10 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 20%. New snow accumulation of less than half an inch possible.
Tuesday
Tue, Mar 17
23°F
Mostly Sunny
10 mph W
Precipitation: 1%
Mostly sunny, with a high near 23.
Tuesday Night
Tue, Mar 17
19°F
Snow Showers Likely
5 mph SSW
Precipitation: 71%
Snow showers likely after 7pm. Mostly cloudy, with a low around 19.
Wednesday
Wed, Mar 18
43°F
Snow Showers Likely
5 mph SSW
Precipitation: 71%
Snow showers likely before 1pm. Partly sunny, with a high near 43.
Wednesday Night
Wed, Mar 18
31°F
Mostly Cloudy
5 mph W
Precipitation: 4%
Mostly cloudy, with a low around 31.
Thursday
Thu, Mar 19
53°F
Mostly Sunny
5 mph SW
Precipitation: 2%
Mostly sunny, with a high near 53.
Thursday Night
Thu, Mar 19
35°F
Mostly Cloudy
5 mph WSW
Precipitation: 2%
Mostly cloudy, with a low around 35.
Friday
Fri, Mar 20
57°F
Mostly Sunny
5 mph W
Precipitation: 4%
Mostly sunny, with a high near 57.
Friday Night
Fri, Mar 20
37°F
Mostly Cloudy
10 mph WNW
Precipitation: 4%
Mostly cloudy, with a low around 37.
Saturday
Sat, Mar 21
59°F
Mostly Sunny
10 mph NW
Precipitation: 3%
Mostly sunny, with a high near 59.