Weather in South Lynnfield, MA
South Lynnfield, Sunday, 9 August, 11:29
Clear. Feels like 92°. High 92°, low 69°.
Monthly outlook for South Lynnfield, MA: average high 82.1°, average low 63.8°. That is 3° above the climate normal for August. Precipitation is expected on 5 days (about 1.6 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 9 August (92.5°), the coolest 16 August (58.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 83° | 77.4° | +3.1° |
| 19 August – 28 August | 80.4° | 75.7° | +2.6° |
| 29 August – 7 September | at normal | 74° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Lynn (3 mi).
0
South Lynnfield, Monday, 10 August
Partly cloudy. High 92°, low 69°.
0
South Lynnfield, Tuesday, 11 August
Overcast. High 91°, low 69°.
0South Lynnfield, Wednesday, 12 August
Partly cloudy. High 87°, low 65°.
0.12
South Lynnfield, Thursday, 13 August
Light rain. High 86°, low 67°.
0South Lynnfield, Friday, 14 August
Clear. High 79°, low 59°.
0South Lynnfield, Saturday, 15 August
Clear. High 80°, low 59°.
0South Lynnfield, Sunday, 16 August
Overcast. High 79°, low 59°.
0.27South Lynnfield, Monday, 17 August
Rain. High 70°, low 62°.
0.56South Lynnfield, Tuesday, 18 August
Rain. High 73°, low 61°.
0South Lynnfield, Wednesday, 19 August
Light rain. High 77°, low 62°.
0.19South Lynnfield, Thursday, 20 August
Light rain. High 79°, low 66°.
0South Lynnfield, Friday, 21 August
Light rain. High 77°, low 63°.
0South Lynnfield, Saturday, 22 August
Clear. High 86°, low 63°.
0.42South Lynnfield, Sunday, 23 August
Rain. High 87°, low 68°.
0South Lynnfield, Monday, 24 August
Clear. High 77°, low 60°.
0.12South Lynnfield, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06
South Lynnfield, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.09South Lynnfield, Thursday, 27 August
Climate normal for this date — 60-year average.
0.11South Lynnfield, Friday, 28 August
Climate normal for this date — 60-year average.
0.17South Lynnfield, Saturday, 29 August
Climate normal for this date — 60-year average.
0.14South Lynnfield, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07South Lynnfield, Monday, 31 August
Climate normal for this date — 60-year average.
0.05South Lynnfield, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.16South Lynnfield, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.13
South Lynnfield, Thursday, 3 September
Climate normal for this date — 60-year average.
0.12South Lynnfield, Friday, 4 September
Climate normal for this date — 60-year average.
0.08South Lynnfield, Saturday, 5 September
Climate normal for this date — 60-year average.
0.15South Lynnfield, Sunday, 6 September
Climate normal for this date — 60-year average.
0.12South Lynnfield, 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 South Lynnfield, 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 South Lynnfield, 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
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