Weather in Algonquin, IL
Algonquin, Wednesday, 7 October, 10:43
Clear. Feels like 67°. High 76°, low 55°.
Monthly outlook for Algonquin, IL: average high 63.4°, average low 46.8°. That is 1.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 10 October (78°), the coolest 21 October (37.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 7 October – 16 October | 69° | 62.5° | +3.6° |
| 17 October – 26 October | 54.2° | 58° | -2.2° |
| 27 October – 5 November | at normal | 54.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Elgin (9 mi).
0
Algonquin, Thursday, 8 October
Mostly clear. High 69°, low 52°.
0.02
Algonquin, Friday, 9 October
Light rain. High 68°, low 49°.
0Algonquin, Saturday, 10 October
Clear. High 78°, low 60°.
0.07Algonquin, Sunday, 11 October
Light rain. High 65°, low 56°.
0.11Algonquin, Monday, 12 October
Light rain. High 76°, low 52°.
0.02Algonquin, Tuesday, 13 October
Light rain. High 60°, low 43°.
0
Algonquin, Wednesday, 14 October
Overcast. High 58°, low 38°.
0Algonquin, Thursday, 15 October
Overcast. High 68°, low 47°.
0
Algonquin, Friday, 16 October
Partly cloudy. High 71°, low 51°.
0Algonquin, Saturday, 17 October
Overcast. High 52°, low 45°.
0Algonquin, Sunday, 18 October
Overcast. High 48°, low 43°.
0Algonquin, Monday, 19 October
Overcast. High 56°, low 39°.
0Algonquin, Tuesday, 20 October
Clear. High 60°, low 41°.
0Algonquin, Wednesday, 21 October
Clear. High 54°, low 38°.
0Algonquin, Thursday, 22 October
Overcast. High 55°, low 39°.
0.11
Algonquin, Friday, 23 October
Climate normal for this date — 60-year average.
0.1Algonquin, Saturday, 24 October
Climate normal for this date — 60-year average.
0.09Algonquin, Sunday, 25 October
Climate normal for this date — 60-year average.
0.09Algonquin, Monday, 26 October
Climate normal for this date — 60-year average.
0.08Algonquin, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.04Algonquin, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.05Algonquin, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Algonquin, Friday, 30 October
Climate normal for this date — 60-year average.
0.12Algonquin, Saturday, 31 October
Climate normal for this date — 60-year average.
0.17Algonquin, Sunday, 1 November
Climate normal for this date — 60-year average.
0.11Algonquin, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Algonquin, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Algonquin, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Algonquin, Thursday, 5 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Algonquin, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Algonquin, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
53°Weather in Annapolis, MD63°Weather in Atlanta, GA66°Weather in Augusta, ME53°Weather in Austin, TX75°Weather in Baton Rouge, LA79°Weather in Bismarck, ND44°Weather in Boise, ID54°Weather in Boston, MA56°Weather in Carson City, NV64°Weather in Charleston, WV62°Weather in Charlotte Amalie, VI88°Weather in Cheyenne, WY58°Weather in Columbia, SC67°Weather in Columbus, OH61°Weather in Concord, NH54°Weather in Denver, CO64°Weather in Des Moines, IA66°Weather in Dover, DE64°Weather in Frankfort, KY68°Weather in Harrisburg, PA59°Weather in Hartford, CT58°Weather in Helena, MT42°Weather in Honolulu, HI73°Weather in Indianapolis, IN65°Weather in Jackson, MS76°Weather in Jefferson City, MO71°Weather in Juneau, AK41°Weather in Lansing, MI62°Weather in Lincoln, NE66°Weather in Little Rock, AR71°Weather in Madison, WI64°Weather in Montgomery, AL69°Weather in Montpelier, VT47°Weather in Nashville, TN69°Weather in Oklahoma City, OK75°Weather in Olympia, WA55°Weather in Phoenix, AZ79°Weather in Pierre, SD48°Weather in Providence, RI57°Weather in Raleigh, NC65°Weather in Richmond, VA63°Weather in Sacramento, CA63°Weather in Salem, OR51°Weather in Salt Lake City, UT65°Weather in San Juan, PR84°Weather in Santa Fe, NM59°Weather in Springfield, IL71°Weather in St. Paul, MN60°Weather in Tallahassee, FL74°Weather in Topeka, KS69°Weather in Trenton, NJ60°Weather in Washington, DC62°68°Weather in Palmerton, IL75°Weather in Polsgrove, IL69°Weather in Parkland, IL70°Weather in Patterson Springs, IL73°Weather in Pauline, IL73°Weather in Pegram, IL75°Weather in Pennington Point, IL73°Weather in Perryville, IL66°Weather in Peterstown, IL68°Weather in Petersville, IL71°Weather in Pioneer, IL69°Weather in Pisgah, IL77°Weather in Pitchin, IL73°Weather in Pleak, IL73°Weather in Pleasant Grove, IL74°Weather in Pleasant Valley, IL69°Weather in Plumfield, IL73°Weather in Polk, IL69°Weather in Poplar City, IL73°