Weather in Clarendon Hills, IL
Clarendon Hills, Sunday, 9 August, 16:36
Overcast. Feels like 80°. High 80°, low 63°.
Monthly outlook for Clarendon Hills, IL: average high 83.4°, average low 68.3°. That is 1.8° above the climate normal for August. Precipitation is expected on 8 days (about 3.1 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 10 August (90.7°), the coolest 9 August (62.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 83.4° | 80.2° | +1.8° |
| 19 August – 28 August | 83.3° | 80.2° | +1.7° |
| 29 August – 7 September | at normal | 78.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — La Grange (4 mi).
0.8
Clarendon Hills, Monday, 10 August
Heavy rain. High 91°, low 71°.
0.44Clarendon Hills, Tuesday, 11 August
Heavy rain. High 85°, low 69°.
0Clarendon Hills, Wednesday, 12 August
Overcast. High 86°, low 67°.
0.09Clarendon Hills, Thursday, 13 August
Light rain. High 82°, low 68°.
0.15Clarendon Hills, Friday, 14 August
Light rain. High 76°, low 68°.
0.32Clarendon Hills, Saturday, 15 August
Rain. High 90°, low 70°.
0.01Clarendon Hills, Sunday, 16 August
Light rain. High 82°, low 69°.
0Clarendon Hills, Monday, 17 August
Overcast. High 74°, low 65°.
0Clarendon Hills, Tuesday, 18 August
Light rain. High 88°, low 73°.
0Clarendon Hills, Wednesday, 19 August
Overcast. High 87°, low 71°.
0.34Clarendon Hills, Thursday, 20 August
Rain. High 86°, low 70°.
0.44Clarendon Hills, Friday, 21 August
Rain. High 77°, low 69°.
0
Clarendon Hills, Saturday, 22 August
Clear. High 82°, low 66°.
0Clarendon Hills, Sunday, 23 August
Overcast. High 81°, low 64°.
0Clarendon Hills, Monday, 24 August
Overcast. High 87°, low 70°.
0.07
Clarendon Hills, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.16
Clarendon Hills, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.14Clarendon Hills, Thursday, 27 August
Climate normal for this date — 60-year average.
0.13Clarendon Hills, Friday, 28 August
Climate normal for this date — 60-year average.
0.11Clarendon Hills, Saturday, 29 August
Climate normal for this date — 60-year average.
0.09Clarendon Hills, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Clarendon Hills, Monday, 31 August
Climate normal for this date — 60-year average.
0.13Clarendon Hills, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.06Clarendon Hills, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.08Clarendon Hills, Thursday, 3 September
Climate normal for this date — 60-year average.
0.08Clarendon Hills, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Clarendon Hills, Saturday, 5 September
Climate normal for this date — 60-year average.
0.1Clarendon Hills, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1Clarendon Hills, Monday, 7 September
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 Clarendon Hills, 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 Clarendon Hills, 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
82°Weather in Annapolis, MD92°Weather in Atlanta, GA88°Weather in Augusta, ME85°Weather in Austin, TX98°Weather in Baton Rouge, LA92°Weather in Bismarck, ND85°Weather in Boise, ID94°Weather in Boston, MA88°Weather in Carson City, NV97°Weather in Charleston, WV85°Weather in Charlotte Amalie, VI85°Weather in Cheyenne, WY91°Weather in Columbia, SC92°Weather in Columbus, OH87°Weather in Concord, NH84°Weather in Denver, CO92°Weather in Des Moines, IA90°Weather in Dover, DE90°Weather in Frankfort, KY90°Weather in Harrisburg, PA89°Weather in Hartford, CT86°Weather in Helena, MT90°Weather in Honolulu, HI86°Weather in Indianapolis, IN88°Weather in Jackson, MS94°Weather in Jefferson City, MO
93°Weather in Juneau, AK50°Weather in Lansing, MI74°Weather in Lincoln, NE97°Weather in Little Rock, AR96°Weather in Madison, WI78°Weather in Montgomery, AL91°Weather in Montpelier, VT79°Weather in Nashville, TN91°Weather in Oklahoma City, OK104°Weather in Olympia, WA80°Weather in Phoenix, AZ109°Weather in Pierre, SD84°Weather in Providence, RI87°Weather in Raleigh, NC90°Weather in Richmond, VA93°Weather in Sacramento, CA102°Weather in Salem, OR85°Weather in Salt Lake City, UT96°Weather in San Juan, PR85°Weather in Santa Fe, NM86°Weather in Springfield, IL90°Weather in St. Paul, MN86°Weather in Tallahassee, FL90°Weather in Topeka, KS98°Weather in Trenton, NJ90°Weather in Washington, DC93°75°Weather in Mount Carroll, IL80°Weather in Lanark, IL80°Weather in Evanston, IL80°Weather in Markham, IL82°Weather in Northlake, IL78°Weather in Oak Forest, IL82°Weather in Genoa, IL79°Weather in Elgin, IL79°Weather in Geneva, IL79°Weather in Elmhurst, IL78°Weather in Naperville, IL79°Weather in Oakbrook Terrace, IL78°Weather in Fulton, IL84°Weather in Morrison, IL84°Weather in East Moline, IL87°Weather in Moline, IL87°Weather in Joliet, IL81°Weather in Earlville, IL86°Weather in Marseilles, IL84°