Weather in South Clewiston, FL
South Clewiston, Sunday, 9 August, 06:22
Mostly clear. Feels like 75°. High 92°, low 74°.
Monthly outlook for South Clewiston, FL: average high 90.5°, average low 76.7°. That is 1.1° above the climate normal for August. Precipitation is expected on 10 days (about 2.9 inches), against a normal of 13 days and 3.4 inches. The warmest day looks like 13 August (93.6°), the coolest 23 August (73.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 91.7° | 88.5° | +1.8° |
| 19 August – 28 August | 88.4° | 88.1° | +0.2° |
| 29 August – 7 September | at normal | 87.5° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Moore Haven (15 mi).
0.09
South Clewiston, Monday, 10 August
Light rain. High 92°, low 75°.
0
South Clewiston, Tuesday, 11 August
Clear. High 91°, low 77°.
0South Clewiston, Wednesday, 12 August
Light rain. High 93°, low 79°.
0.03South Clewiston, Thursday, 13 August
Light rain. High 94°, low 79°.
0
South Clewiston, Friday, 14 August
Partly cloudy. High 93°, low 78°.
0.38South Clewiston, Saturday, 15 August
Rain. High 89°, low 78°.
0South Clewiston, Sunday, 16 August
Light rain. High 88°, low 77°.
0.07South Clewiston, Monday, 17 August
Light rain. High 91°, low 79°.
0.18South Clewiston, Tuesday, 18 August
Light rain. High 93°, low 78°.
0.5South Clewiston, Wednesday, 19 August
Rain. High 89°, low 75°.
0.08South Clewiston, Thursday, 20 August
Light rain. High 92°, low 79°.
0.4South Clewiston, Friday, 21 August
Rain. High 82°, low 75°.
0.44South Clewiston, Saturday, 22 August
Rain. High 89°, low 74°.
0.5South Clewiston, Sunday, 23 August
Rain. High 88°, low 74°.
0.17South Clewiston, Monday, 24 August
Light rain. High 90°, low 75°.
0.22South Clewiston, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.22South Clewiston, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.16South Clewiston, Thursday, 27 August
Climate normal for this date — 60-year average.
0.18South Clewiston, Friday, 28 August
Climate normal for this date — 60-year average.
0.15South Clewiston, Saturday, 29 August
Climate normal for this date — 60-year average.
0.22South Clewiston, Sunday, 30 August
Climate normal for this date — 60-year average.
0.19South Clewiston, Monday, 31 August
Climate normal for this date — 60-year average.
0.21South Clewiston, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.2South Clewiston, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.23South Clewiston, Thursday, 3 September
Climate normal for this date — 60-year average.
0.18South Clewiston, Friday, 4 September
Climate normal for this date — 60-year average.
0.32South Clewiston, Saturday, 5 September
Climate normal for this date — 60-year average.
0.22South Clewiston, Sunday, 6 September
Climate normal for this date — 60-year average.
0.21South Clewiston, 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 Clewiston, FL 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 Clewiston, FL 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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