Weather in Mount Lucia, IA
Mount Lucia, Sunday, 9 August, 03:10
Clear. Feels like 70°. High 91°, low 69°.
Monthly outlook for Mount Lucia, IA: average high 88.4°, average low 66.6°. That is 3.5° above the climate normal for August. Precipitation is expected on 6 days (about 2.4 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 11 August (103.2°), the coolest 13 August (60.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 86.6° | 82° | +2.6° |
| 19 August – 28 August | 91.3° | 82.2° | +5.1° |
| 29 August – 7 September | at normal | 80.7° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Sioux City (5 mi).
0.02
Mount Lucia, Monday, 10 August
Light rain. High 92°, low 70°.
0.03Mount Lucia, Tuesday, 11 August
Light rain. High 103°, low 67°.
0.21Mount Lucia, Wednesday, 12 August
Rain. High 94°, low 68°.
1.16Mount Lucia, Thursday, 13 August
Heavy rain. High 75°, low 60°.
0.48Mount Lucia, Friday, 14 August
Rain. High 64°, low 62°.
0
Mount Lucia, Saturday, 15 August
Overcast. High 74°, low 61°.
0Mount Lucia, Sunday, 16 August
Overcast. High 84°, low 64°.
0
Mount Lucia, Monday, 17 August
Partly cloudy. High 89°, low 66°.
0Mount Lucia, Tuesday, 18 August
Overcast. High 99°, low 67°.
0Mount Lucia, Wednesday, 19 August
Overcast. High 95°, low 73°.
0.02Mount Lucia, Thursday, 20 August
Light rain. High 93°, low 67°.
0.16Mount Lucia, Friday, 21 August
Light rain. High 84°, low 64°.
0Mount Lucia, Saturday, 22 August
Overcast. High 99°, low 69°.
0.11Mount Lucia, Sunday, 23 August
Light rain. High 87°, low 71°.
0.2Mount Lucia, Monday, 24 August
Light rain. High 90°, low 68°.
0.09Mount Lucia, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.11
Mount Lucia, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.09Mount Lucia, Thursday, 27 August
Climate normal for this date — 60-year average.
0.14Mount Lucia, Friday, 28 August
Climate normal for this date — 60-year average.
0.07
Mount Lucia, Saturday, 29 August
Climate normal for this date — 60-year average.
0.09Mount Lucia, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09Mount Lucia, Monday, 31 August
Climate normal for this date — 60-year average.
0.08Mount Lucia, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.08Mount Lucia, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.13Mount Lucia, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11Mount Lucia, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Mount Lucia, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05Mount Lucia, Sunday, 6 September
Climate normal for this date — 60-year average.
0.08Mount Lucia, 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 Mount Lucia, IA 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 Mount Lucia, IA 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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