Weather in Ann Arbor, MI
Ann Arbor, Sunday, 18 October, 10:25
Clear. Feels like 39°. High 60°, low 37°.
Monthly outlook for Ann Arbor, MI: average high 61.1°, average low 44.4°. That is 3.2° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 28 October (68.2°), the coolest 2 November (36.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 60.8° | 56.3° | +2.5° |
| 28 October – 6 November | 61.6° | 52.9° | +4.8° |
| 7 November – 16 November | at normal | 47.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Chelsea (15 mi).
0Ann Arbor, Monday, 19 October
Clear. High 65°, low 38°.
0Ann Arbor, Tuesday, 20 October
Clear. High 63°, low 44°.
0
Ann Arbor, Wednesday, 21 October
Partly cloudy. High 63°, low 43°.
0Ann Arbor, Thursday, 22 October
Partly cloudy. High 61°, low 47°.
0Ann Arbor, Friday, 23 October
Clear. High 56°, low 40°.
0
Ann Arbor, Saturday, 24 October
Overcast. High 64°, low 42°.
0.08
Ann Arbor, Sunday, 25 October
Light rain. High 60°, low 47°.
0Ann Arbor, Monday, 26 October
Overcast. High 58°, low 40°.
0Ann Arbor, Tuesday, 27 October
Overcast. High 59°, low 50°.
0.03Ann Arbor, Wednesday, 28 October
Light rain. High 68°, low 50°.
0.06Ann Arbor, Thursday, 29 October
Light rain. High 67°, low 58°.
0Ann Arbor, Friday, 30 October
Overcast. High 67°, low 51°.
0.44Ann Arbor, Saturday, 31 October
Rain. High 64°, low 48°.
0Ann Arbor, Sunday, 1 November
Overcast. High 48°, low 40°.
0Ann Arbor, Monday, 2 November
Clear. High 55°, low 37°.
0.08Ann Arbor, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.06Ann Arbor, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.07Ann Arbor, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Ann Arbor, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Ann Arbor, Saturday, 7 November
Climate normal for this date — 60-year average.
0.03
Ann Arbor, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11
Ann Arbor, Monday, 9 November
Climate normal for this date — 60-year average.
0.12Ann Arbor, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.1Ann Arbor, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Ann Arbor, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Ann Arbor, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Ann Arbor, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13Ann Arbor, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07Ann Arbor, Monday, 16 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 Ann Arbor, 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 Ann Arbor, 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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