Weather in Donnan, IA
Donnan, Monday, 12 October, 11:06
Overcast. Feels like 77°. High 85°, low 65°.
Monthly outlook for Donnan, IA: average high 64°, average low 50.6°. That is 4.3° above the climate normal for October. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 12 October (84.8°), the coolest 26 October (37.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 64.5° | 57.5° | +3.9° |
| 22 October – 31 October | 63.4° | 53.7° | +5.4° |
| 1 November – 10 November | at normal | 48.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — West Union (5 mi).
0
Donnan, Tuesday, 13 October
Light rain. High 74°, low 56°.
0
Donnan, Wednesday, 14 October
Clear. High 64°, low 51°.
0.05Donnan, Thursday, 15 October
Light rain. High 60°, low 55°.
0Donnan, Friday, 16 October
Clear. High 55°, low 44°.
0Donnan, Saturday, 17 October
Clear. High 59°, low 38°.
0Donnan, Sunday, 18 October
Clear. High 59°, low 41°.
0.02Donnan, Monday, 19 October
Light rain. High 57°, low 48°.
0Donnan, Tuesday, 20 October
Overcast. High 61°, low 53°.
0Donnan, Wednesday, 21 October
Overcast. High 71°, low 54°.
0.65Donnan, Thursday, 22 October
Heavy rain. High 66°, low 60°.
0.33Donnan, Friday, 23 October
Rain. High 73°, low 64°.
0.56Donnan, Saturday, 24 October
Heavy rain. High 69°, low 59°.
0Donnan, Sunday, 25 October
Overcast. High 54°, low 42°.
0
Donnan, Monday, 26 October
Mostly clear. High 59°, low 37°.
0Donnan, Tuesday, 27 October
Mostly clear. High 59°, low 43°.
0.07
Donnan, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.1Donnan, Thursday, 29 October
Climate normal for this date — 60-year average.
0.08Donnan, Friday, 30 October
Climate normal for this date — 60-year average.
0.1Donnan, Saturday, 31 October
Climate normal for this date — 60-year average.
0.18Donnan, Sunday, 1 November
Climate normal for this date — 60-year average.
0.07Donnan, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Donnan, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.08Donnan, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.08Donnan, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Donnan, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Donnan, Saturday, 7 November
Climate normal for this date — 60-year average.
0.03Donnan, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11
Donnan, Monday, 9 November
Climate normal for this date — 60-year average.
0.1Donnan, Tuesday, 10 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 Donnan, 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 Donnan, 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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