Weather in St. Louis, MO
St. Louis, Sunday, 9 August, 03:15
Clear. Feels like 77°. High 96°, low 73°.
Monthly outlook for St. Louis, MO: average high 99.1°, average low 75.5°. That is 7.1° above the climate normal for August. Precipitation is expected on 7 days (about 0.9 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 20 August (115.2°), the coolest 15 August (65.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 92.9° | 86.3° | +3.7° |
| 19 August – 28 August | 109.5° | 86.5° | +12.8° |
| 29 August – 7 September | at normal | 84.1° | — |
August records over 66 years
0.35
St. Louis, Monday, 10 August
Heavy rain. High 101°, low 72°.
0.04St. Louis, Tuesday, 11 August
Light rain. High 103°, low 72°.
0.03St. Louis, Wednesday, 12 August
Light rain. High 98°, low 79°.
0.16St. Louis, Thursday, 13 August
Light rain. High 88°, low 72°.
0.11St. Louis, Friday, 14 August
Light rain. High 75°, low 67°.
0.09St. Louis, Saturday, 15 August
Light rain. High 90°, low 66°.
0
St. Louis, Sunday, 16 August
Overcast. High 92°, low 72°.
0.07St. Louis, Monday, 17 August
Light rain. High 90°, low 73°.
0.04St. Louis, Tuesday, 18 August
Light rain. High 95°, low 70°.
0
St. Louis, Wednesday, 19 August
Partly cloudy. High 111°, low 79°.
0
St. Louis, Thursday, 20 August
Clear. High 115°, low 84°.
0St. Louis, Friday, 21 August
Clear. High 106°, low 84°.
0
St. Louis, Saturday, 22 August
Mostly clear. High 114°, low 83°.
0.04St. Louis, Sunday, 23 August
Light rain. High 109°, low 81°.
0.02St. Louis, Monday, 24 August
Light rain. High 101°, low 79°.
0.06St. Louis, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.13St. Louis, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12St. Louis, Thursday, 27 August
Climate normal for this date — 60-year average.
0.08St. Louis, Friday, 28 August
Climate normal for this date — 60-year average.
0.07St. Louis, Saturday, 29 August
Climate normal for this date — 60-year average.
0.11St. Louis, Sunday, 30 August
Climate normal for this date — 60-year average.
0.11St. Louis, Monday, 31 August
Climate normal for this date — 60-year average.
0.11
St. Louis, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12St. Louis, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1St. Louis, Thursday, 3 September
Climate normal for this date — 60-year average.
0.13St. Louis, Friday, 4 September
Climate normal for this date — 60-year average.
0.05St. Louis, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05St. Louis, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1St. Louis, 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 St. Louis, MO 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 St. Louis, MO 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
69°Weather in Annapolis, MD
76°Weather in Atlanta, GA72°Weather in Augusta, ME68°Weather in Austin, TX80°Weather in Baton Rouge, LA77°Weather in Bismarck, ND66°Weather in Boise, ID69°Weather in Boston, MA72°Weather in Carson City, NV75°Weather in Charleston, WV73°Weather in Charlotte Amalie, VI81°Weather in Cheyenne, WY71°Weather in Columbia, SC74°Weather in Columbus, OH70°Weather in Concord, NH69°Weather in Denver, CO76°Weather in Des Moines, IA73°Weather in Dover, DE76°Weather in Frankfort, KY71°Weather in Harrisburg, PA71°Weather in Hartford, CT71°Weather in Helena, MT63°Weather in Honolulu, HI77°Weather in Indianapolis, IN72°Weather in Jackson, MS76°Weather in Jefferson City, MO77°Weather in Juneau, AK48°Weather in Lansing, MI59°Weather in Lincoln, NE77°Weather in Little Rock, AR74°Weather in Madison, WI64°Weather in Montgomery, AL76°Weather in Montpelier, VT63°Weather in Nashville, TN70°Weather in Oklahoma City, OK82°Weather in Olympia, WA57°Weather in Phoenix, AZ93°Weather in Pierre, SD75°Weather in Providence, RI73°Weather in Raleigh, NC74°Weather in Richmond, VA76°Weather in Sacramento, CA69°Weather in Salem, OR62°Weather in Salt Lake City, UT81°Weather in San Juan, PR82°Weather in Santa Fe, NM73°Weather in Springfield, IL73°Weather in St. Paul, MN68°Weather in Tallahassee, FL74°Weather in Topeka, KS76°Weather in Trenton, NJ72°Weather in Washington, DC75°72°Weather in Brookfield, MO75°Weather in Browning, MO75°Weather in Braymer, MO77°Weather in Breckenridge, MO74°Weather in Glasgow Village, MO76°Weather in Lemay, MO75°Weather in Mehlville, MO74°Weather in Oakville, MO74°Weather in Sappington, MO74°Weather in Spanish Lake, MO75°Weather in Affton, MO75°Weather in Castle Point, MO76°Weather in Concord, MO74°Weather in Breckenridge Hills, MO75°Weather in Brentwood, MO75°Weather in Bridgeton, MO76°Weather in Gray Summit, MO73°Weather in High Ridge, MO73°Weather in Horine, MO73°