Weather in Sergeant Bluff, IA
Sergeant Bluff, Saturday, 8 August, 16:12
Overcast. Feels like 79°. High 82°, low 59°.
Monthly outlook for Sergeant Bluff, IA: average high 93.7°, average low 65.5°. That is 6.4° above the climate normal for August. Precipitation is expected on 6 days (about 0.7 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 10 August (106.1°), the coolest 23 August (51.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 94.7° | 82.2° | +6.9° |
| 18 August – 27 August | 92.1° | 82.2° | +5.5° |
| 28 August – 6 September | at normal | 81° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Sioux City (7 mi).
0
Sergeant Bluff, Sunday, 9 August
Partly cloudy. High 93°, low 73°.
0Sergeant Bluff, Monday, 10 August
Overcast. High 106°, low 70°.
0.02
Sergeant Bluff, Tuesday, 11 August
Light rain. High 103°, low 68°.
0.04Sergeant Bluff, Wednesday, 12 August
Light rain. High 101°, low 72°.
0.23Sergeant Bluff, Thursday, 13 August
Rain. High 90°, low 65°.
0Sergeant Bluff, Friday, 14 August
Overcast. High 89°, low 58°.
0Sergeant Bluff, Saturday, 15 August
Overcast. High 89°, low 59°.
0.11Sergeant Bluff, Sunday, 16 August
Light rain. High 98°, low 68°.
0.04Sergeant Bluff, Monday, 17 August
Light rain. High 97°, low 70°.
0Sergeant Bluff, Tuesday, 18 August
Overcast. High 101°, low 69°.
0.18Sergeant Bluff, Wednesday, 19 August
Light rain. High 103°, low 69°.
0.1Sergeant Bluff, Thursday, 20 August
Light rain. High 90°, low 65°.
0
Sergeant Bluff, Friday, 21 August
Clear. High 95°, low 65°.
0.03Sergeant Bluff, Saturday, 22 August
Light rain. High 82°, low 66°.
0Sergeant Bluff, Sunday, 23 August
Clear. High 82°, low 51°.
0.05
Sergeant Bluff, Monday, 24 August
Climate normal for this date — 60-year average.
0.09Sergeant Bluff, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.11
Sergeant Bluff, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.09Sergeant Bluff, Thursday, 27 August
Climate normal for this date — 60-year average.
0.14Sergeant Bluff, Friday, 28 August
Climate normal for this date — 60-year average.
0.07Sergeant Bluff, Saturday, 29 August
Climate normal for this date — 60-year average.
0.09Sergeant Bluff, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09Sergeant Bluff, Monday, 31 August
Climate normal for this date — 60-year average.
0.08Sergeant Bluff, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.08Sergeant Bluff, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.13Sergeant Bluff, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11Sergeant Bluff, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Sergeant Bluff, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05Sergeant Bluff, Sunday, 6 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 Sergeant Bluff, 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 Sergeant Bluff, 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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