Weather in National City, IL
National City, Sunday, 9 August, 09:44
Mostly clear. Feels like 88°. High 97°, low 72°.
Monthly outlook for National City, IL: average high 94.9°, average low 71.3°. That is 4.8° above the climate normal for August. Precipitation is expected on 4 days (about 0.4 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 10 August (102.7°), the coolest 24 August (62.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 97.3° | 86.3° | +6.1° |
| 19 August – 28 August | 91° | 86.5° | +2.5° |
| 29 August – 7 September | at normal | 84.1° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — St. Louis (5 mi).
0National City, Monday, 10 August
Mostly clear. High 103°, low 76°.
0
National City, Tuesday, 11 August
Light rain. High 102°, low 79°.
0.04National City, Wednesday, 12 August
Light rain. High 99°, low 76°.
0.13National City, Thursday, 13 August
Light rain. High 97°, low 73°.
0
National City, Friday, 14 August
Overcast. High 91°, low 72°.
0
National City, Saturday, 15 August
Partly cloudy. High 101°, low 72°.
0
National City, Sunday, 16 August
Clear. High 96°, low 78°.
0National City, Monday, 17 August
Overcast. High 85°, low 67°.
0.13National City, Tuesday, 18 August
Light rain. High 102°, low 67°.
0National City, Wednesday, 19 August
Mostly clear. High 95°, low 74°.
0National City, Thursday, 20 August
Clear. High 86°, low 65°.
0.07National City, Friday, 21 August
Light rain. High 99°, low 67°.
0National City, Saturday, 22 August
Clear. High 95°, low 76°.
0National City, Sunday, 23 August
Clear. High 85°, low 65°.
0National City, Monday, 24 August
Clear. High 86°, low 62°.
0.06National City, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.13National City, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12National City, Thursday, 27 August
Climate normal for this date — 60-year average.
0.08National City, Friday, 28 August
Climate normal for this date — 60-year average.
0.07National City, Saturday, 29 August
Climate normal for this date — 60-year average.
0.11National City, Sunday, 30 August
Climate normal for this date — 60-year average.
0.11National City, Monday, 31 August
Climate normal for this date — 60-year average.
0.11
National City, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12National City, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1National City, Thursday, 3 September
Climate normal for this date — 60-year average.
0.13National City, Friday, 4 September
Climate normal for this date — 60-year average.
0.05National City, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05National City, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1National City, 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 National City, 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 National City, 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
80°Weather in Annapolis, MD85°Weather in Atlanta, GA87°Weather in Augusta, ME81°Weather in Austin, TX84°Weather in Baton Rouge, LA87°Weather in Bismarck, ND66°Weather in Boise, ID65°Weather in Boston, MA85°Weather in Carson City, NV76°Weather in Charleston, WV81°Weather in Charlotte Amalie, VI84°Weather in Cheyenne, WY76°Weather in Columbia, SC85°Weather in Columbus, OH79°Weather in Concord, NH82°Weather in Denver, CO84°Weather in Des Moines, IA79°Weather in Dover, DE87°Weather in Frankfort, KY82°Weather in Harrisburg, PA84°Weather in Hartford, CT84°Weather in Helena, MT62°Weather in Honolulu, HI75°Weather in Indianapolis, IN80°Weather in Jackson, MS88°Weather in Jefferson City, MO82°Weather in Juneau, AK47°Weather in Lansing, MI73°Weather in Lincoln, NE86°Weather in Little Rock, AR82°Weather in Madison, WI69°Weather in Montgomery, AL84°Weather in Montpelier, VT77°Weather in Nashville, TN78°Weather in Oklahoma City, OK81°Weather in Olympia, WA56°Weather in Phoenix, AZ92°Weather in Pierre, SD71°Weather in Providence, RI85°Weather in Raleigh, NC85°Weather in Richmond, VA87°Weather in Sacramento, CA67°Weather in Salem, OR61°Weather in Salt Lake City, UT84°Weather in San Juan, PR87°Weather in Santa Fe, NM74°Weather in Springfield, IL81°Weather in St. Paul, MN71°Weather in Tallahassee, FL82°Weather in Topeka, KS81°Weather in Trenton, NJ85°Weather in Washington, DC87°77°Weather in Media, IL77°Weather in Oquawka, IL77°Weather in Stronghurst, IL77°Weather in Kirkwood, IL79°Weather in Little York, IL79°Weather in Roseville, IL76°Weather in Ashkum, IL77°Weather in Beaverville, IL77°Weather in Iroquois, IL79°Weather in Loda, IL83°Weather in Crescent City, IL80°Weather in Danforth, IL77°Weather in Donovan, IL79°Weather in Martinton, IL77°Weather in Milford, IL75°Weather in Onarga, IL75°Weather in Papineau, IL73°Weather in Woodland, IL79°Weather in Sheldon, IL79°