Weather in Grantsburg, WI
Grantsburg, Tuesday, 20 October, 03:31
Clear. Feels like 39°. High 68°, low 41°.
Monthly outlook for Grantsburg, WI: average high 54.8°, average low 37°. That is 2.9° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 24 October (71.1°), the coolest 28 October (22.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 58° | 51.3° | +3.7° |
| 30 October – 8 November | 49.4° | 45.8° | +2° |
| 9 November – 18 November | at normal | 39.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Rock Creek (11 mi).
0
Grantsburg, Wednesday, 21 October
Clear. High 70°, low 43°.
0Grantsburg, Thursday, 22 October
Clear. High 71°, low 45°.
0
Grantsburg, Friday, 23 October
Overcast. High 70°, low 55°.
0.1
Grantsburg, Saturday, 24 October
Light rain. High 71°, low 60°.
0Grantsburg, Sunday, 25 October
Overcast. High 58°, low 46°.
0.02
Grantsburg, Monday, 26 October
Light snow. High 47°, low 38°.
0.04Grantsburg, Tuesday, 27 October
Light snow. High 35°, low 26°.
0Grantsburg, Wednesday, 28 October
Overcast. High 42°, low 22°.
0Grantsburg, Thursday, 29 October
Clear. High 48°, low 28°.
0Grantsburg, Friday, 30 October
Clear. High 45°, low 27°.
0Grantsburg, Saturday, 31 October
Clear. High 43°, low 28°.
0Grantsburg, Sunday, 1 November
Clear. High 44°, low 26°.
0Grantsburg, Monday, 2 November
Clear. High 49°, low 28°.
0Grantsburg, Tuesday, 3 November
Overcast. High 57°, low 41°.
0Grantsburg, Wednesday, 4 November
Overcast. High 59°, low 39°.
0.05
Grantsburg, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Grantsburg, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Grantsburg, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Grantsburg, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1
Grantsburg, Monday, 9 November
Climate normal for this date — 60-year average.
0.11Grantsburg, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Grantsburg, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Grantsburg, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Grantsburg, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Grantsburg, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Grantsburg, Sunday, 15 November
Climate normal for this date — 60-year average.
0.09Grantsburg, Monday, 16 November
Climate normal for this date — 60-year average.
0.07Grantsburg, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Grantsburg, 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 Grantsburg, WI 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 Grantsburg, WI 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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