What is the weather in Algonquin, IL right now?

The latest observation from Chicago / West Chicago, Dupage Airport was 54°F and cloudy, reported at 10/26/2026, 8:30 PM CDT.

Will it rain in Algonquin, IL in the next 24 hours?

The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.

What is the 10-day forecast for Algonquin, IL?

The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 3 to Nov 4) come from the NOAA National Blend of Models, with highs of 63°F to 66°F and up to a 49% chance of precipitation. Model guidance this far out often changes.

What time is sunrise and sunset in Algonquin, IL today?

Sunrise is about 7:19 AM CDT and sunset is about 5:55 PM CDT (calculated for the center of the area, within a few minutes).

What is the normal October weather in Algonquin, IL?

At Elgin, the 1991 to 2020 normal high in October is 63°F and the normal low is 41°F.

Checked Oct 26, 2026

Algonquin, IL Weather

Current conditions, hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Algonquin, IL current weather

54°F

Cloudy

H -- / L 45°Feels like 54°

No rain expected in the next 12 hours

Observed at Chicago / West Chicago, Dupage Airport (18.8 mi away), 10/26/2026, 8:30 PM CDT

Hourly forecast

NWS, updated 3:40 PM

Now51°
9 PM49°
10 PM49°
11 PM49°
Tue12 AM47°
1 AM46°
2 AM46°
3 AM46°
4 AM45°
5 AM45°
6 AM45°
7 AM46°
8 AM47°
9 AM51°
10 AM56°
11 AM61°
12 PM64°
1 PM66°
2 PM67°
3 PM68°
4 PM68°
5 PM67°
6 PM64°
7 PM61°
8 PM60°
9 PM58°
10 PM57°
11 PM56°
Wed12 AM56°
1 AM55°
2 AM54°
3 AM53°
4 AM52°
5 AM52°
6 AM51°
7 AM51°
8 AM52°
9 AM55°
10 AM60°
11 AM64°
12 PM67°
1 PM69°
2 PM70°
3 PM71°
4 PM71°
5 PM68°
6 PM65°
7 PM62°

10-day forecast

Tap a day for details

Today10/26Low 45°High
Tonight: Partly cloudy, with a low around 45. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Partly Cloudy
Tue10/27Low 51°High 68°
Tuesday: Partly sunny, with a high near 68. Southeast wind 5 to 10 mph.
Tuesday Night: Mostly cloudy, with a low around 51. South wind around 5 mph, with gusts as high as 10 mph.
Partly Sunny
Wed10/2810% chance of precipitationLow 55°High 71°
Wednesday: Mostly sunny, with a high near 71. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night: Partly cloudy, with a low around 55. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Sunny
Thu10/2929% chance of precipitationLow 49°High 73°
Thursday: A chance of rain showers between 7am and 1pm. Partly sunny, with a high near 73. Chance of precipitation is 30%.
Thursday Night: Mostly cloudy, with a low around 49.
Chance Rain Showers
Fri10/3043% chance of precipitationLow 53°High 70°
Friday: A chance of rain showers after 7am. Partly sunny, with a high near 70.
Friday Night: A chance of rain showers before 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Chance Rain Showers
Sat10/3133% chance of precipitationLow 54°High 70°
Saturday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 70.
Saturday Night: A chance of rain showers. Mostly cloudy, with a low around 54.
Chance Showers And Thunderstorms
Sun11/136% chance of precipitationLow 53°High 70°
Sunday: A chance of rain showers. Mostly cloudy, with a high near 70.
Sunday Night: A slight chance of rain showers. Mostly cloudy, with a low around 53.
Chance Rain Showers
Mon11/248% chance of precipitationLow High 68°
Monday: A chance of rain showers. Mostly cloudy, with a high near 68.
Chance Rain Showers
Model blend
Tue11/3Model blend49% chance of precipitationLow 48°High 66°
Tuesday: Chance of rain. High near 66°. Low that night near 48°. About 0.44 in of precipitation.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Wed11/4Model blend35% chance of precipitationLow 45°High 63°
Wednesday: Chance of rain. High near 63°. Low that night near 45°. About 0.04 in of precipitation.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 42.163, -88.321 from the NWS LOT office, updated 10/26/2026, 3:40 PM CDT · Official forecast on weather.gov

Days 9 to 10: NOAA National Blend of Models, station K06C (Schaumburg Rgnl, 16 mi), model run 10/26/2026, 3:00 PM CDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

Now51°Mostly Cloudy2%10 mph
9 PM49°Partly Cloudy2%10 mph
10 PM49°Partly Cloudy2%10 mph
11 PM49°Mostly Clear2%5 mph
12 AM47°Mostly Clear2%5 mph
1 AM46°Partly Cloudy2%5 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Line: temperature °F. Bars: chance of precipitation.

MonNow51°Feels 46°2% Sky 55%10g16
9 PM49°Feels 43°2% Sky 39%10g16
10 PM49°Feels 43°2% Sky 30%10g15
11 PM49°Feels 43°2% Sky 22%5g14
Tue 10/2712 AM47°Feels 43°2% Sky 22%5g13
1 AM46°Feels 43°2% Sky 27%5g13
2 AM46°Feels 43°2% Sky 37%5g12
3 AM46°Feels 43°2% Sky 44%5g12
4 AM45°Feels 42°3% Sky 49%5g12
5 AM45°Feels 42°2% Sky 47%5g12
6 AM45°Feels 42°2% Sky 50%5g12
7 AM46°Feels 43°2% Sky 59%5g12
8 AM47°Feels 44°2% Sky 58%5g12
9 AM51° 3% Sky 51%5g12
10 AM56° 3% Sky 54%5g13
11 AM61° 2% Sky 57%10
12 PM64° 3% Sky 60%10
1 PM66° 3% Sky 68%10
2 PM67° 2% Sky 75%10
3 PM68° 2% Sky 64%10
4 PM68° 3% Sky 76%10
5 PM67° 4% Sky 85%5g12
6 PM64° 4% Sky 92%5g10
7 PM61° 1% Sky 81%5
8 PM60° 1% Sky 83%5
9 PM58° 0% Sky 86%5
10 PM57° 0% Sky 71%5
11 PM56° 0% Sky 58%5
Wed 10/2812 AM56° 0% Sky 65%5
1 AM55° 0% Sky 84%5
2 AM54° 0% Sky 82%5
3 AM53° 0% Sky 79%5
4 AM52° 0% Sky 81%5
5 AM52° 0% Sky 57%5
6 AM51° 1% Sky 56%5
7 AM51° 1% Sky 66%5
8 AM52° 1% Sky 54%5
9 AM55° 1% Sky 59%5
10 AM60° 1% Sky 64%5g10
11 AM64° 1% Sky 54%5g12
12 PM67° 1% Sky 45%10
1 PM69° 0% Sky 35%10g15
2 PM70° 0% Sky 31%10g15
3 PM71° 0% Sky 28%10g16
4 PM71° 0% Sky 24%10g16
5 PM68° 0% Sky 24%10g15
6 PM65° 0% Sky 23%10
7 PM62° 2% Sky 23%5g13
8 PM60° 2% Sky 25%5g13
9 PM59° 2% Sky 26%5g14
10 PM59° 2% Sky 28%10g15
11 PM58° 2% Sky 33%10g16
Thu 10/2912 AM58° 2% Sky 39%10g16
1 AM58° 10% Sky 44%10g16
2 AM58° 10% Sky 49%10g17
3 AM57° 10% Sky 53%10g17
4 AM57° 10% Sky 58%10g17
5 AM56° 10% Sky 57%10g17
6 AM55° 10% Sky 57%10g16
7 AM56° 29% Sky 56%10g16
8 AM57° 29% Sky 56%10g16
9 AM60° 29% Sky 56%10g16
10 AM63° 29% Sky 56%10g16
11 AM66° 29% Sky 60%10g16
12 PM69° 29% Sky 65%10g17
1 PM71° 12% Sky 69%10g17
2 PM72° 12% Sky 66%10g17
3 PM73° 12% Sky 62%10g16
4 PM72° 12% Sky 59%10
5 PM70° 12% Sky 60%5g12
6 PM67° 12% Sky 62%5
7 PM66° 7% Sky 64%5
8 PM63° 7% Sky 64%0g6
9 PM60° 7% Sky 64%0g5
10 PM58° 7% Sky 64%0g5
11 PM56° 7% Sky 64%0g5
Fri 10/3012 AM55° 7% Sky 64%0g5
1 AM54° 14% Sky 37%0g5
2 AM53° 14% Sky 37%0g5
3 AM52° 14% Sky 37%0g5
4 AM51° 14% Sky 37%0g5
5 AM50° 14% Sky 37%0g5
6 AM49° 14% Sky 37%0g5
7 AM50° 25% Sky 55%0g6
8 AM52° 25% Sky 55%0g6
9 AM56° 25% Sky 55%5
10 AM59° 25% Sky 55%5
11 AM62° 25% Sky 55%5
12 PM65° 25% Sky 55%5
1 PM67° 35% Sky 62%5
2 PM69° 35% Sky 62%5g10
3 PM69° 35% Sky 62%5g10
4 PM69° 35% Sky 62%5
5 PM68° 35% Sky 62%5
6 PM66° 35% Sky 62%5
7 PM63° 43% Sky 81%5
8 PM61° 43% Sky 81%5
9 PM59° 43% Sky 81%5
10 PM57° 43% Sky 81%5
11 PM57° 43% Sky 81%5
Sat 10/3112 AM56° 43% Sky 81%0g7
1 AM56° 22% Sky 81%0g7
2 AM56° 22% Sky 81%0g7
3 AM55° 22% Sky 81%0g7
4 AM55° 22% Sky 81%5
5 AM54° 22% Sky 81%0g7
6 AM54° 22% Sky 81%0g7
7 AM54° 32% Sky 83%0g7
8 AM56° 32% Sky 83%5
9 AM58° 32% Sky 83%5
10 AM61° 32% Sky 83%5
11 AM63° 32% Sky 83%5
12 PM66° 32% Sky 83%5
1 PM67° 23% Sky 80%5
2 PM69° 23% Sky 80%5
3 PM69° 23% Sky 80%5
4 PM69° 23% Sky 80%5
5 PM68° 23% Sky 80%5
6 PM66° 23% Sky 80%5
7 PM64° 22% Sky 86%5
8 PM62° 22% Sky 86%0g6
9 PM59° 22% Sky 86%0g6
10 PM58° 22% Sky 86%0g6
11 PM57° 22% Sky 86%0g6
Sun 11/112 AM57° 22% Sky 86%0g6
1 AM56° 33% Sky 84%0g6
1 AM56° 33% Sky 84%0g6
2 AM56° 33% Sky 84%0g5
3 AM55° 33% Sky 84%0g5
4 AM54° 33% Sky 84%0g5
5 AM54° 33% Sky 84%0g5
6 AM54° 36% Sky 78%0g5
7 AM56° 36% Sky 78%0g6
8 AM59° 36% Sky 78%0g6
9 AM62° 36% Sky 78%5
10 AM64° 36% Sky 78%5
11 AM66° 36% Sky 78%5
12 PM68° 26% Sky 68%5
1 PM70° 26% Sky 68%5
2 PM70° 26% Sky 68%5
3 PM70° 26% Sky 68%5
4 PM69° 26% Sky 68%5
5 PM67° 26% Sky 68%5
6 PM64° 17% Sky 80%5
7 PM62° 17% Sky 80%0g6
8 PM60° 17% Sky 80%0g6
9 PM58° 17% Sky 80%0g5
10 PM57° 17% Sky 80%0g5
11 PM57° 17% Sky 80%0g5
Mon 11/212 AM57° 19% Sky 83%0g5
1 AM56° 19% Sky 83%0g5
2 AM56° 19% Sky 83%0g5
3 AM55° 19% Sky 83%0g5
4 AM54° 19% Sky 83%0g6
5 AM54° 19% Sky 83%0g6
6 AM54° 41% Sky 84%0g6

Temperature °F · chance of precipitation · amount in inches (T = trace) · sky cover · wind and gusts (g) in mph

NWS hourly forecast updated 10/26/2026, 3:40 PM CDT

Radar and satellite

National radar

NEXRAD (last 50 min) and GOES

Latest

Nearby hazards

Illinois hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
River gauges within 40 miles at or above flood stage: None reported
Active wildfires within 50 miles: None reported

Drought

By county

McHenry County, week of 10/20/2026

No drought or abnormal dryness in this county.

Frequently asked questions

What is the weather in Algonquin, IL right now?: The latest observation from Chicago / West Chicago, Dupage Airport was 54°F and cloudy, reported at 10/26/2026, 8:30 PM CDT.
Will it rain in Algonquin, IL in the next 24 hours?: The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Algonquin, IL?: The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 3 to Nov 4) come from the NOAA National Blend of Models, with highs of 63°F to 66°F and up to a 49% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Algonquin, IL today?: Sunrise is about 7:19 AM CDT and sunset is about 5:55 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Algonquin, IL?: At Elgin, the 1991 to 2020 normal high in October is 63°F and the normal low is 41°F.

Sun and moon

Local time, center of the area

Sunrise: 7:19 AM
Sunset: 5:55 PM
Daylight: 10 hr 36 min
Moon: Full Moon 99% lit

First light (civil dawn): 6:50 AM
Last light (civil dusk): 6:23 PM
Moonrise: 5:47 PM
Moonset: 7:58 AM

Normal October weather

Climate

Normal October high 63°, low 41°, precipitation 3.31 in for the month. 1991 to 2020 normals at Elgin, 7 mi away.

Other places nearby

Data sources

National Weather Service APINOAA
National Blend of Models (NBM) text guidanceNOAA National Weather Service
Convective Outlooks and Storm ReportsNOAA Storm Prediction Center
Excessive Rainfall Outlook and Quantitative Precipitation ForecastsNOAA Weather Prediction Center
National Water Prediction ServiceNOAA National Weather Service
WFIGS Current Wildland Fire IncidentsNational Interagency Fire Center
UV Index Forecast (Envirofacts)U.S. Environmental Protection Agency and NOAA
AirNowU.S. Environmental Protection Agency
NWS HeatRisk (experimental)NOAA National Weather Service
U.S. Drought MonitorNational Drought Mitigation Center, USDA and NOAA
BEACON 2.0 Beach Advisory and Closing On-line NotificationU.S. Environmental Protection Agency
U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information
Tides & Currents (CO-OPS API)NOAA Center for Operational Oceanographic Products and Services
NEXRAD radar tilesIowa Environmental Mesonet, Iowa State University
GOES-East and GOES-West GeoColor imageryNOAA NESDIS Center for Satellite Applications and Research

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About this data

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