Weather in Arnold, PA
Arnold, Saturday, 8 August, 15:27
Partly cloudy. Feels like 89°. High 83°, low 68°.
Monthly outlook for Arnold, PA: average high 78.1°, average low 59.9°. That is 1.2° below the climate normal for August. Precipitation is expected on 9 days (about 2.1 inches), against a normal of 7 days and 2.2 inches. The warmest day looks like 10 August (86.5°), the coolest 15 August (50.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 79° | 80.6° | -0.9° |
| 18 August – 27 August | 76.6° | 79.8° | -1.8° |
| 28 August – 6 September | at normal | 78.7° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Pittsburgh (15 mi).
0
Arnold, Sunday, 9 August
Light rain. High 84°, low 67°.
0.58Arnold, Monday, 10 August
Heavy rain. High 87°, low 66°.
0.37Arnold, Tuesday, 11 August
Rain. High 82°, low 65°.
0.15Arnold, Wednesday, 12 August
Light rain. High 73°, low 66°.
0.07Arnold, Thursday, 13 August
Light rain. High 75°, low 62°.
0
Arnold, Friday, 14 August
Clear. High 74°, low 55°.
0Arnold, Saturday, 15 August
Partly cloudy. High 74°, low 50°.
0
Arnold, Sunday, 16 August
Overcast. High 77°, low 52°.
0Arnold, Monday, 17 August
Overcast. High 80°, low 55°.
0.24Arnold, Tuesday, 18 August
Light rain. High 75°, low 63°.
0Arnold, Wednesday, 19 August
Overcast. High 79°, low 58°.
0.28Arnold, Thursday, 20 August
Rain. High 77°, low 61°.
0.15Arnold, Friday, 21 August
Light rain. High 76°, low 63°.
0.05Arnold, Saturday, 22 August
Light rain. High 80°, low 58°.
0Arnold, Sunday, 23 August
Clear. High 71°, low 51°.
0.05Arnold, Monday, 24 August
Climate normal for this date — 60-year average.
0.09Arnold, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.09Arnold, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13
Arnold, Thursday, 27 August
Climate normal for this date — 60-year average.
0.19Arnold, Friday, 28 August
Climate normal for this date — 60-year average.
0.12Arnold, Saturday, 29 August
Climate normal for this date — 60-year average.
0.14Arnold, Sunday, 30 August
Climate normal for this date — 60-year average.
0.16Arnold, Monday, 31 August
Climate normal for this date — 60-year average.
0.11Arnold, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.13Arnold, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1Arnold, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Arnold, Friday, 4 September
Climate normal for this date — 60-year average.
0.12Arnold, Saturday, 5 September
Climate normal for this date — 60-year average.
0.14Arnold, Sunday, 6 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 Arnold, PA 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 Arnold, PA 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
86°Weather in Annapolis, MD91°Weather in Atlanta, GA91°Weather in Augusta, ME81°Weather in Austin, TX95°Weather in Baton Rouge, LA94°Weather in Bismarck, ND87°Weather in Boise, ID90°Weather in Boston, MA90°Weather in Carson City, NV92°Weather in Charleston, WV90°Weather in Charlotte Amalie, VI83°Weather in Cheyenne, WY
94°Weather in Columbia, SC91°Weather in Columbus, OH88°Weather in Concord, NH86°Weather in Denver, CO97°Weather in Des Moines, IA82°Weather in Dover, DE87°Weather in Frankfort, KY91°Weather in Harrisburg, PA82°Weather in Hartford, CT89°Weather in Helena, MT88°Weather in Honolulu, HI80°Weather in Indianapolis, IN88°Weather in Jackson, MS92°Weather in Jefferson City, MO87°Weather in Juneau, AK49°Weather in Lansing, MI83°Weather in Lincoln, NE79°Weather in Little Rock, AR86°Weather in Madison, WI78°Weather in Montgomery, AL94°Weather in Montpelier, VT81°Weather in Nashville, TN91°Weather in Oklahoma City, OK101°Weather in Olympia, WA70°Weather in Phoenix, AZ105°Weather in Pierre, SD89°Weather in Providence, RI90°Weather in Raleigh, NC90°Weather in Richmond, VA93°Weather in Sacramento, CA84°Weather in Salem, OR79°Weather in Salt Lake City, UT98°Weather in San Juan, PR89°Weather in Santa Fe, NM90°Weather in Springfield, IL89°Weather in St. Paul, MN82°Weather in Tallahassee, FL91°Weather in Topeka, KS90°Weather in Trenton, NJ89°Weather in Washington, DC94°78°Weather in Wylandville, PA80°Weather in Fredericktown, PA80°Weather in Muse, PA79°Weather in West Alexander, PA80°Weather in Defiance, PA79°Weather in Stonerstown, PA82°Weather in Earlston, PA81°Weather in Blue Ball, PA85°Weather in Fort Loudon, PA82°Weather in Marion, PA82°Weather in Scotland, PA82°Weather in Blue Ridge Summit, PA82°Weather in Pen Mar, PA83°Weather in State Line, PA84°Weather in Cairnbrook, PA77°Weather in Edie, PA77°Weather in Cochranville, PA85°Weather in Westwood, PA85°Weather in Needmore, PA87°