Weather in Grass Lake, MI
Grass Lake, Monday, 26 October, 05:34
Clear. Feels like 40°. High 67°, low 43°.
Monthly outlook for Grass Lake, MI: average high 59.8°, average low 47°. That is 4.1° above the climate normal for October. Precipitation is expected on 6 days (about 1.3 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 29 October (69.9°), the coolest 8 November (36.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 26 October – 4 November | 61.6° | 53.6° | +4.5° |
| 5 November – 14 November | 56.6° | 48.4° | +4.5° |
| 15 November – 24 November | at normal | 44.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Chelsea (11 mi).
0
Grass Lake, Tuesday, 27 October
Overcast. High 61°, low 38°.
0Grass Lake, Wednesday, 28 October
Overcast. High 67°, low 50°.
0.15
Grass Lake, Thursday, 29 October
Rain. High 70°, low 51°.
0.02Grass Lake, Friday, 30 October
Light rain. High 65°, low 53°.
0.39Grass Lake, Saturday, 31 October
Rain. High 64°, low 54°.
0.14Grass Lake, Sunday, 1 November
Light rain. High 59°, low 51°.
0.31Grass Lake, Monday, 2 November
Rain. High 58°, low 56°.
0.15Grass Lake, Tuesday, 3 November
Light rain. High 56°, low 48°.
0.14Grass Lake, Wednesday, 4 November
Light rain. High 50°, low 46°.
0Grass Lake, Thursday, 5 November
Overcast. High 47°, low 46°.
0.01Grass Lake, Friday, 6 November
Light rain. High 56°, low 47°.
0Grass Lake, Saturday, 7 November
Overcast. High 62°, low 47°.
0
Grass Lake, Sunday, 8 November
Clear. High 54°, low 37°.
0
Grass Lake, Monday, 9 November
Partly cloudy. High 58°, low 40°.
0Grass Lake, Tuesday, 10 November
Overcast. High 62°, low 46°.
0.1Grass Lake, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Grass Lake, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05
Grass Lake, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Grass Lake, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13
Grass Lake, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07Grass Lake, Monday, 16 November
Climate normal for this date — 60-year average.
0.07Grass Lake, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09Grass Lake, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Grass Lake, Thursday, 19 November
Climate normal for this date — 60-year average.
0.11Grass Lake, Friday, 20 November
Climate normal for this date — 60-year average.
0.08Grass Lake, Saturday, 21 November
Climate normal for this date — 60-year average.
0.07Grass Lake, Sunday, 22 November
Climate normal for this date — 60-year average.
0.09Grass Lake, Monday, 23 November
Climate normal for this date — 60-year average.
0.09Grass Lake, Tuesday, 24 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 Grass Lake, 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 Grass Lake, 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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