Weather in West Chelmsford, MA
West Chelmsford, Sunday, 9 August, 18:20
Clear. Feels like 85°. High 87°, low 69°.
Monthly outlook for West Chelmsford, MA: average high 81.3°, average low 61°. That is 0.9° above the climate normal for August. Precipitation is expected on 5 days (about 0.7 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 24 August (90°), the coolest 15 August (53.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 80° | 80.5° | -0.3° |
| 19 August – 28 August | 83.5° | 78.7° | +2.7° |
| 29 August – 7 September | at normal | 76.7° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Lawrence (13 mi).
0.11
West Chelmsford, Monday, 10 August
Rain. High 89°, low 66°.
0
West Chelmsford, Tuesday, 11 August
Partly cloudy. High 86°, low 66°.
0.05West Chelmsford, Wednesday, 12 August
Light rain. High 70°, low 62°.
0
West Chelmsford, Thursday, 13 August
Mostly clear. High 83°, low 59°.
0
West Chelmsford, Friday, 14 August
Overcast. High 74°, low 56°.
0West Chelmsford, Saturday, 15 August
Partly cloudy. High 78°, low 54°.
0.35West Chelmsford, Sunday, 16 August
Rain. High 73°, low 56°.
0.06West Chelmsford, Monday, 17 August
Light rain. High 76°, low 61°.
0West Chelmsford, Tuesday, 18 August
Partly cloudy. High 84°, low 60°.
0.04West Chelmsford, Wednesday, 19 August
Light rain. High 83°, low 67°.
0West Chelmsford, Thursday, 20 August
Mostly clear. High 82°, low 57°.
0.06West Chelmsford, Friday, 21 August
Light rain. High 84°, low 63°.
0West Chelmsford, Saturday, 22 August
Overcast. High 77°, low 61°.
0West Chelmsford, Sunday, 23 August
Clear. High 85°, low 59°.
0.01West Chelmsford, Monday, 24 August
Light rain. High 90°, low 61°.
0.12West Chelmsford, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.04West Chelmsford, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.08
West Chelmsford, Thursday, 27 August
Climate normal for this date — 60-year average.
0.12West Chelmsford, Friday, 28 August
Climate normal for this date — 60-year average.
0.15West Chelmsford, Saturday, 29 August
Climate normal for this date — 60-year average.
0.11West Chelmsford, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09West Chelmsford, Monday, 31 August
Climate normal for this date — 60-year average.
0.05West Chelmsford, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.14West Chelmsford, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11West Chelmsford, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11West Chelmsford, Friday, 4 September
Climate normal for this date — 60-year average.
0.08West Chelmsford, Saturday, 5 September
Climate normal for this date — 60-year average.
0.13West Chelmsford, Sunday, 6 September
Climate normal for this date — 60-year average.
0.11West Chelmsford, 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 West Chelmsford, MA 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 West Chelmsford, MA 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, MO93°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°82°Weather in East Deerfield, MA83°Weather in Factory Hollow, MA82°Weather in Feeding Hills, MA85°Weather in Lake Pleasant, MA83°Weather in Leverett Station, MA82°Weather in Mittineague, MA83°Weather in Montague City, MA81°Weather in North Agawam, MA83°Weather in North Hadley, MA82°Weather in North Hatfield, MA81°Weather in North Sunderland, MA81°Weather in Riverside, MA82°Weather in Wapping, MA81°Weather in West Agawam, MA83°Weather in Aldrich Mills, MA81°Weather in East Forest Park, MA84°Weather in Fiberloid, MA83°Weather in Hockanum, MA82°Weather in Liberty Heights, MA83°