Weather in Ottumwa, IA
Ottumwa, Tuesday, 20 October, 16:19
Clear. Feels like 71°. High 72°, low 42°.
Monthly outlook for Ottumwa, IA: average high 60.9°, average low 44.1°. That is 1.2° above the climate normal for October. Precipitation is expected on 5 days (about 0.8 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 25 October (75.5°), the coolest 30 October (31.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 64° | 60.2° | +2.1° |
| 30 October – 8 November | 55.6° | 55.2° | +0.2° |
| 9 November – 18 November | at normal | 50.2° | — |
October records over 66 years
0Ottumwa, Wednesday, 21 October
Clear. High 75°, low 47°.
0Ottumwa, Thursday, 22 October
Clear. High 73°, low 47°.
0
Ottumwa, Friday, 23 October
Mostly clear. High 73°, low 53°.
0
Ottumwa, Saturday, 24 October
Overcast. High 73°, low 56°.
0Ottumwa, Sunday, 25 October
Overcast. High 76°, low 56°.
0.15
Ottumwa, Monday, 26 October
Light rain. High 61°, low 46°.
0.1Ottumwa, Tuesday, 27 October
Light rain. High 43°, low 40°.
0.01Ottumwa, Wednesday, 28 October
Light rain. High 47°, low 38°.
0Ottumwa, Thursday, 29 October
Clear. High 48°, low 35°.
0Ottumwa, Friday, 30 October
Mostly clear. High 54°, low 32°.
0.13Ottumwa, Saturday, 31 October
Light rain. High 49°, low 46°.
0.27Ottumwa, Sunday, 1 November
Rain. High 64°, low 49°.
0.12Ottumwa, Monday, 2 November
Rain. High 59°, low 41°.
0Ottumwa, Tuesday, 3 November
Clear. High 55°, low 37°.
0Ottumwa, Wednesday, 4 November
Overcast. High 53°, low 41°.
0.07
Ottumwa, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Ottumwa, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Ottumwa, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Ottumwa, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Ottumwa, Monday, 9 November
Climate normal for this date — 60-year average.
0.09Ottumwa, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Ottumwa, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Ottumwa, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Ottumwa, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Ottumwa, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Ottumwa, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Ottumwa, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Ottumwa, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.05Ottumwa, Wednesday, 18 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 Ottumwa, 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 Ottumwa, 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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