Weather in Portage, IL
Portage, Monday, 19 October, 22:04
Partly cloudy. Feels like 52°. High 69°, low 41°.
Monthly outlook for Portage, IL: average high 59.8°, average low 42°. That is 2.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 21 October (71.3°), the coolest 28 October (24.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 62.3° | 56° | +3.5° |
| 29 October – 7 November | 55.6° | 51.5° | +2.3° |
| 8 November – 17 November | at normal | 45.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Benton (13 mi).
0
Portage, Tuesday, 20 October
Clear. High 70°, low 42°.
0Portage, Wednesday, 21 October
Clear. High 71°, low 46°.
0Portage, Thursday, 22 October
Clear. High 70°, low 49°.
0
Portage, Friday, 23 October
Overcast. High 66°, low 51°.
0Portage, Saturday, 24 October
Overcast. High 67°, low 52°.
0Portage, Sunday, 25 October
Overcast. High 69°, low 54°.
0Portage, Monday, 26 October
Overcast. High 55°, low 42°.
0.06
Portage, Tuesday, 27 October
Light rain. High 45°, low 30°.
0Portage, Wednesday, 28 October
Clear. High 42°, low 24°.
0
Portage, Thursday, 29 October
Mostly clear. High 50°, low 28°.
0Portage, Friday, 30 October
Clear. High 55°, low 34°.
0Portage, Saturday, 31 October
Mostly clear. High 61°, low 40°.
0.02Portage, Sunday, 1 November
Light rain. High 57°, low 47°.
0.03Portage, Monday, 2 November
Light rain. High 53°, low 47°.
0
Portage, Tuesday, 3 November
Partly cloudy. High 58°, low 44°.
0.1Portage, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Portage, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Portage, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Portage, Saturday, 7 November
Climate normal for this date — 60-year average.
0.05Portage, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1
Portage, Monday, 9 November
Climate normal for this date — 60-year average.
0.12Portage, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Portage, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Portage, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Portage, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Portage, Saturday, 14 November
Climate normal for this date — 60-year average.
0.05Portage, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Portage, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Portage, Tuesday, 17 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 Portage, IL 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 Portage, IL 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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