Weather in Sully, IA
Sully, Wednesday, 7 October, 07:30
Mostly clear. Feels like 55°. High 79°, low 56°.
Monthly outlook for Sully, IA: average high 64.8°, average low 47.9°. That is 1.3° above the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 9 October (80.7°), the coolest 18 October (34.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 7 October – 16 October | 70.6° | 63.6° | +3.9° |
| 17 October – 26 October | 55.2° | 59.5° | -2.4° |
| 27 October – 5 November | at normal | 54.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Newton (13 mi).
0
Sully, Thursday, 8 October
Partly cloudy. High 74°, low 51°.
0.12
Sully, Friday, 9 October
Light rain. High 81°, low 55°.
0
Sully, Saturday, 10 October
Clear. High 81°, low 65°.
0Sully, Sunday, 11 October
Clear. High 77°, low 59°.
0.02Sully, Monday, 12 October
Light rain. High 73°, low 57°.
0Sully, Tuesday, 13 October
Partly cloudy. High 58°, low 49°.
0.7Sully, Wednesday, 14 October
Rain. High 63°, low 48°.
0.84Sully, Thursday, 15 October
Rain. High 70°, low 48°.
0Sully, Friday, 16 October
Clear. High 51°, low 40°.
0
Sully, Saturday, 17 October
Overcast. High 48°, low 36°.
0Sully, Sunday, 18 October
Overcast. High 54°, low 34°.
0Sully, Monday, 19 October
Overcast. High 58°, low 41°.
0Sully, Tuesday, 20 October
Overcast. High 61°, low 42°.
0.06Sully, Wednesday, 21 October
Light rain. High 54°, low 48°.
0Sully, Thursday, 22 October
Clear. High 56°, low 40°.
0.11
Sully, Friday, 23 October
Climate normal for this date — 60-year average.
0.13Sully, Saturday, 24 October
Climate normal for this date — 60-year average.
0.05Sully, Sunday, 25 October
Climate normal for this date — 60-year average.
0.09Sully, Monday, 26 October
Climate normal for this date — 60-year average.
0.08Sully, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.07Sully, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.09Sully, Thursday, 29 October
Climate normal for this date — 60-year average.
0.08Sully, Friday, 30 October
Climate normal for this date — 60-year average.
0.14Sully, Saturday, 31 October
Climate normal for this date — 60-year average.
0.22Sully, Sunday, 1 November
Climate normal for this date — 60-year average.
0.09Sully, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Sully, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.13Sully, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.07Sully, Thursday, 5 November
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 Sully, 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 Sully, 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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