Weather in Decatur, MI
Decatur, Sunday, 25 October, 03:45
Partly cloudy. Feels like 47°. High 69°, low 48°.
Monthly outlook for Decatur, MI: average high 62.8°, average low 49.3°. That is 5.2° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 30 October (71°), the coolest 6 November (39.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 67.1° | 54.8° | +6.9° |
| 4 November – 13 November | 55.6° | 49.7° | +3.3° |
| 14 November – 23 November | at normal | 45.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Dowagiac (11 mi).
0
Decatur, Monday, 26 October
Partly cloudy. High 69°, low 50°.
0
Decatur, Tuesday, 27 October
Overcast. High 66°, low 49°.
0
Decatur, Wednesday, 28 October
Clear. High 69°, low 51°.
0.1
Decatur, Thursday, 29 October
Light rain. High 66°, low 56°.
0Decatur, Friday, 30 October
Overcast. High 71°, low 49°.
0.03Decatur, Saturday, 31 October
Light rain. High 68°, low 58°.
0.37Decatur, Sunday, 1 November
Rain. High 71°, low 60°.
0
Decatur, Monday, 2 November
Mostly clear. High 63°, low 50°.
0Decatur, Tuesday, 3 November
Overcast. High 60°, low 48°.
0.37Decatur, Wednesday, 4 November
Rain. High 53°, low 49°.
0.01Decatur, Thursday, 5 November
Light rain. High 54°, low 42°.
0Decatur, Friday, 6 November
Overcast. High 56°, low 40°.
0Decatur, Saturday, 7 November
Overcast. High 68°, low 53°.
0Decatur, Sunday, 8 November
Partly cloudy. High 55°, low 46°.
0Decatur, Monday, 9 November
Overcast. High 48°, low 43°.
0.15
Decatur, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.1Decatur, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.09Decatur, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Decatur, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Decatur, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Decatur, Sunday, 15 November
Climate normal for this date — 60-year average.
0.08Decatur, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Decatur, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.12Decatur, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Decatur, Thursday, 19 November
Climate normal for this date — 60-year average.
0.14Decatur, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Decatur, Saturday, 21 November
Climate normal for this date — 60-year average.
0.05Decatur, Sunday, 22 November
Climate normal for this date — 60-year average.
0.11Decatur, Monday, 23 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 Decatur, MI 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 Decatur, MI 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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