Weather in Portland, IA
Portland, Saturday, 24 October, 01:05
Clear. Feels like 60°. High 74°, low 55°.
Monthly outlook for Portland, IA: average high 62.8°, average low 49.7°. That is 5.8° above the climate normal for October. Precipitation is expected on 6 days (about 1.6 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 24 October (73.6°), the coolest 2 November (40.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 24 October – 2 November | 64.3° | 53.9° | +5.8° |
| 3 November – 12 November | 60.4° | 48° | +6.9° |
| 13 November – 22 November | at normal | 43.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Dougherty (15 mi).
0
Portland, Sunday, 25 October
Overcast. High 69°, low 52°.
0.05
Portland, Monday, 26 October
Rain. High 63°, low 48°.
0.03Portland, Tuesday, 27 October
Light rain. High 67°, low 52°.
0.25Portland, Wednesday, 28 October
Rain. High 66°, low 55°.
0.44Portland, Thursday, 29 October
Rain. High 69°, low 56°.
0.22Portland, Friday, 30 October
Rain. High 61°, low 57°.
0.47Portland, Saturday, 31 October
Rain. High 59°, low 56°.
0.18Portland, Sunday, 1 November
Rain. High 58°, low 48°.
0
Portland, Monday, 2 November
Partly cloudy. High 58°, low 40°.
0Portland, Tuesday, 3 November
Overcast. High 48°, low 40°.
0Portland, Wednesday, 4 November
Overcast. High 54°, low 41°.
0
Portland, Thursday, 5 November
Mostly clear. High 64°, low 44°.
0Portland, Friday, 6 November
Overcast. High 67°, low 51°.
0Portland, Saturday, 7 November
Overcast. High 63°, low 49°.
0Portland, Sunday, 8 November
Mostly clear. High 67°, low 50°.
0.13Portland, Monday, 9 November
Climate normal for this date — 60-year average.
0.1Portland, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Portland, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Portland, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Portland, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Portland, Saturday, 14 November
Climate normal for this date — 60-year average.
0.07Portland, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Portland, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Portland, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Portland, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Portland, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Portland, Friday, 20 November
Climate normal for this date — 60-year average.
0.05Portland, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Portland, Sunday, 22 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 Portland, 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 Portland, 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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