Weather in South Boston, IN
South Boston, Sunday, 9 August, 08:40
Overcast. Feels like 72°. High 92°, low 70°.
Monthly outlook for South Boston, IN: average high 91°, average low 70.3°. That is 3.7° above the climate normal for August. Precipitation is expected on 5 days (about 0.7 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 23 August (104.7°), the coolest 16 August (61.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 85.6° | 84.5° | +0.6° |
| 19 August – 28 August | 100.1° | 84.6° | +8.6° |
| 29 August – 7 September | at normal | 82.9° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Borden (8 mi).
0
South Boston, Monday, 10 August
Mostly clear. High 95°, low 74°.
0
South Boston, Tuesday, 11 August
Light rain. High 93°, low 75°.
0.35South Boston, Wednesday, 12 August
Rain. High 88°, low 68°.
0.06South Boston, Thursday, 13 August
Light rain. High 87°, low 67°.
0.16South Boston, Friday, 14 August
Light rain. High 69°, low 64°.
0.08South Boston, Saturday, 15 August
Light rain. High 76°, low 62°.
0.05South Boston, Sunday, 16 August
Light rain. High 83°, low 61°.
0South Boston, Monday, 17 August
Overcast. High 85°, low 66°.
0
South Boston, Tuesday, 18 August
Clear. High 87°, low 64°.
0South Boston, Wednesday, 19 August
Light rain. High 91°, low 66°.
0South Boston, Thursday, 20 August
Overcast. High 98°, low 74°.
0South Boston, Friday, 21 August
Overcast. High 104°, low 80°.
0South Boston, Saturday, 22 August
Overcast. High 103°, low 76°.
0South Boston, Sunday, 23 August
Clear. High 105°, low 80°.
0.01South Boston, Monday, 24 August
Light rain. High 100°, low 79°.
0.07
South Boston, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07
South Boston, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.1South Boston, Thursday, 27 August
Climate normal for this date — 60-year average.
0.11South Boston, Friday, 28 August
Climate normal for this date — 60-year average.
0.11South Boston, Saturday, 29 August
Climate normal for this date — 60-year average.
0.14South Boston, Sunday, 30 August
Climate normal for this date — 60-year average.
0.11South Boston, Monday, 31 August
Climate normal for this date — 60-year average.
0.13South Boston, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.14South Boston, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11South Boston, Thursday, 3 September
Climate normal for this date — 60-year average.
0.08South Boston, Friday, 4 September
Climate normal for this date — 60-year average.
0.12South Boston, Saturday, 5 September
Climate normal for this date — 60-year average.
0.02South Boston, Sunday, 6 September
Climate normal for this date — 60-year average.
0.04South Boston, 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 Boston, IN 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 Boston, IN 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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