Weather in Deer Park, IL
Deer Park, Monday, 19 October, 17:02
Overcast. Feels like 63°. High 66°, low 39°.
Monthly outlook for Deer Park, IL: average high 56.9°, average low 41.5°. That is 1.2° above the climate normal for October. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 20 October (66.8°), the coolest 29 October (28.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 59.4° | 55.8° | +2° |
| 29 October – 7 November | 52.7° | 52.1° | +0.4° |
| 8 November – 17 November | at normal | 46.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (14 mi).
0
Deer Park, Tuesday, 20 October
Clear. High 67°, low 44°.
0Deer Park, Wednesday, 21 October
Clear. High 66°, low 44°.
0.02
Deer Park, Thursday, 22 October
Light rain. High 65°, low 49°.
0
Deer Park, Friday, 23 October
Partly cloudy. High 59°, low 46°.
0Deer Park, Saturday, 24 October
Overcast. High 59°, low 43°.
0Deer Park, Sunday, 25 October
Overcast. High 62°, low 47°.
0Deer Park, Monday, 26 October
Overcast. High 57°, low 47°.
0Deer Park, Tuesday, 27 October
Overcast. High 51°, low 38°.
0Deer Park, Wednesday, 28 October
Clear. High 42°, low 29°.
0Deer Park, Thursday, 29 October
Clear. High 48°, low 29°.
0Deer Park, Friday, 30 October
Overcast. High 52°, low 33°.
0Deer Park, Saturday, 31 October
Overcast. High 58°, low 42°.
0Deer Park, Sunday, 1 November
Overcast. High 60°, low 49°.
0.33Deer Park, Monday, 2 November
Light rain. High 49°, low 43°.
0.02Deer Park, Tuesday, 3 November
Light rain. High 50°, low 42°.
0.09Deer Park, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Deer Park, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Deer Park, Friday, 6 November
Climate normal for this date — 60-year average.
0.05
Deer Park, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Deer Park, Sunday, 8 November
Climate normal for this date — 60-year average.
0.12
Deer Park, Monday, 9 November
Climate normal for this date — 60-year average.
0.11Deer Park, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Deer Park, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Deer Park, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Deer Park, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Deer Park, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Deer Park, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Deer Park, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Deer Park, Tuesday, 17 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 Deer Park, 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 Deer Park, 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
59°Weather in Annapolis, MD63°Weather in Atlanta, GA70°Weather in Augusta, ME
56°Weather in Austin, TX78°Weather in Baton Rouge, LA78°Weather in Bismarck, ND66°Weather in Boise, ID76°Weather in Boston, MA53°Weather in Carson City, NV74°Weather in Charleston, WV62°Weather in Charlotte Amalie, VI86°Weather in Cheyenne, WY64°Weather in Columbia, SC67°Weather in Columbus, OH66°Weather in Concord, NH53°Weather in Denver, CO69°Weather in Des Moines, IA66°Weather in Dover, DE63°Weather in Frankfort, KY70°Weather in Harrisburg, PA65°Weather in Hartford, CT58°Weather in Helena, MT64°Weather in Honolulu, HI82°Weather in Indianapolis, IN67°Weather in Jackson, MS75°Weather in Jefferson City, MO71°Weather in Juneau, AK37°Weather in Lansing, MI64°Weather in Lincoln, NE70°Weather in Little Rock, AR74°Weather in Madison, WI66°Weather in Montgomery, AL71°Weather in Montpelier, VT53°Weather in Nashville, TN71°Weather in Oklahoma City, OK71°Weather in Olympia, WA63°Weather in Phoenix, AZ88°Weather in Pierre, SD66°Weather in Providence, RI55°Weather in Raleigh, NC64°Weather in Richmond, VA63°Weather in Sacramento, CA70°Weather in Salem, OR64°Weather in Salt Lake City, UT69°Weather in San Juan, PR84°Weather in Santa Fe, NM69°Weather in Springfield, IL68°Weather in St. Paul, MN66°Weather in Tallahassee, FL73°Weather in Topeka, KS67°Weather in Trenton, NJ60°Weather in Washington, DC66°71°Weather in Campbell Hill, IL74°Weather in Carrier Mills, IL69°Weather in Bush, IL70°Weather in Cambria, IL71°Weather in Vienna, IL70°Weather in Buncombe, IL70°Weather in Alto Pass, IL71°Weather in Hanover, IL66°Weather in Elizabeth, IL65°Weather in Menominee, IL65°Weather in Nora, IL65°Weather in Scales Mound, IL64°Weather in Stockton, IL64°Weather in Warren, IL65°Weather in Lena, IL66°Weather in Dakota, IL66°Weather in Davis, IL67°Weather in German Valley, IL66°Weather in Ridott, IL66°