Weather in Grand Island, FL
Grand Island, Sunday, 9 August, 11:12
Overcast. Feels like 101°. High 90°, low 76°.
Monthly outlook for Grand Island, FL: average high 93.2°, average low 76.7°. That is 2.7° above the climate normal for August. Precipitation is expected on 9 days (about 2.4 inches), against a normal of 12 days and 3.1 inches. The warmest day looks like 11 August (98.6°), the coolest 19 August (74.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 94.5° | 88.4° | +3.4° |
| 19 August – 28 August | 91.1° | 88° | +1.7° |
| 29 August – 7 September | at normal | 87.2° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Leesburg (13 mi).
0.07
Grand Island, Monday, 10 August
Rain. High 91°, low 76°.
0
Grand Island, Tuesday, 11 August
Mostly clear. High 99°, low 77°.
0
Grand Island, Wednesday, 12 August
Clear. High 96°, low 78°.
0.02Grand Island, Thursday, 13 August
Light rain. High 95°, low 76°.
0Grand Island, Friday, 14 August
Overcast. High 97°, low 77°.
0Grand Island, Saturday, 15 August
Overcast. High 95°, low 79°.
0.98Grand Island, Sunday, 16 August
Heavy rain. High 94°, low 78°.
0.13Grand Island, Monday, 17 August
Light rain. High 93°, low 75°.
0Grand Island, Tuesday, 18 August
Overcast. High 96°, low 78°.
0.11Grand Island, Wednesday, 19 August
Light rain. High 85°, low 74°.
0.34Grand Island, Thursday, 20 August
Rain. High 87°, low 75°.
0.27Grand Island, Friday, 21 August
Rain. High 92°, low 76°.
0.33Grand Island, Saturday, 22 August
Rain. High 93°, low 77°.
0Grand Island, Sunday, 23 August
Overcast. High 95°, low 76°.
0.06Grand Island, Monday, 24 August
Light rain. High 94°, low 78°.
0.18Grand Island, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.2Grand Island, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.18Grand Island, Thursday, 27 August
Climate normal for this date — 60-year average.
0.14Grand Island, Friday, 28 August
Climate normal for this date — 60-year average.
0.24Grand Island, Saturday, 29 August
Climate normal for this date — 60-year average.
0.19Grand Island, Sunday, 30 August
Climate normal for this date — 60-year average.
0.21Grand Island, Monday, 31 August
Climate normal for this date — 60-year average.
0.2Grand Island, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.18Grand Island, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.17Grand Island, Thursday, 3 September
Climate normal for this date — 60-year average.
0.17Grand Island, Friday, 4 September
Climate normal for this date — 60-year average.
0.27Grand Island, Saturday, 5 September
Climate normal for this date — 60-year average.
0.26Grand Island, Sunday, 6 September
Climate normal for this date — 60-year average.
0.25Grand Island, 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 Grand Island, 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 Grand Island, 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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