Weather in Dorchester, IA
Dorchester, Thursday, 29 October, 11:15
Clear. Feels like 59°. High 61°, low 47°.
Monthly outlook for Dorchester, IA: average high 56.4°, average low 44.8°. That is 5° above the climate normal for October. Precipitation is expected on 7 days (about 3.5 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 1 November (66.5°), the coolest 7 November (30.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 57.5° | 49.5° | +4.4° |
| 8 November – 17 November | 54.8° | 43.6° | +6.2° |
| 18 November – 27 November | at normal | 39.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Caledonia (11 mi).
0
Dorchester, Friday, 30 October
Light rain. High 58°, low 42°.
0.41Dorchester, Saturday, 31 October
Heavy rain. High 60°, low 50°.
0Dorchester, Sunday, 1 November
Clear. High 66°, low 52°.
0.52Dorchester, Monday, 2 November
Rain. High 61°, low 57°.
0.2Dorchester, Tuesday, 3 November
Light rain. High 66°, low 56°.
1.48Dorchester, Wednesday, 4 November
Rain. High 61°, low 54°.
0.64Dorchester, Thursday, 5 November
Rain. High 51°, low 45°.
0.1Dorchester, Friday, 6 November
Light rain. High 45°, low 35°.
0
Dorchester, Saturday, 7 November
Overcast. High 47°, low 31°.
0Dorchester, Sunday, 8 November
Overcast. High 48°, low 33°.
0Dorchester, Monday, 9 November
Overcast. High 52°, low 38°.
0
Dorchester, Tuesday, 10 November
Partly cloudy. High 54°, low 37°.
0Dorchester, Wednesday, 11 November
Clear. High 59°, low 43°.
0Dorchester, Thursday, 12 November
Overcast. High 57°, low 44°.
0.17Dorchester, Friday, 13 November
Rain. High 59°, low 52°.
0.03Dorchester, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Dorchester, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Dorchester, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Dorchester, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08
Dorchester, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Dorchester, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Dorchester, Friday, 20 November
Climate normal for this date — 60-year average.
0.06Dorchester, Saturday, 21 November
Climate normal for this date — 60-year average.
0.03
Dorchester, Sunday, 22 November
Climate normal for this date — 60-year average.
0.11Dorchester, Monday, 23 November
Climate normal for this date — 60-year average.
0.05Dorchester, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.05Dorchester, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.07Dorchester, Thursday, 26 November
Climate normal for this date — 60-year average.
0.09Dorchester, Friday, 27 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 Dorchester, 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 Dorchester, 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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