Weather in Portage, IL
Portage, Friday, 30 October, 00:57
Mostly clear. Feels like 46°. High 60°, low 46°.
Monthly outlook for Portage, IL: average high 54.9°, average low 46.5°. That is 3.3° above the climate normal for October. Precipitation is expected on 8 days (about 4.0 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 1 November (68.7°), the coolest 11 November (41°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 59.8° | 51° | +4.9° |
| 9 November – 18 November | 46.8° | 45.4° | +0.8° |
| 19 November – 28 November | at normal | 40.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Benton (13 mi).
0.64
Portage, Saturday, 31 October
Heavy rain. High 60°, low 51°.
0.03Portage, Sunday, 1 November
Light rain. High 69°, low 50°.
0.13Portage, Monday, 2 November
Light rain. High 64°, low 55°.
0.92Portage, Tuesday, 3 November
Rain. High 67°, low 61°.
0.65Portage, Wednesday, 4 November
Rain. High 58°, low 51°.
0
Portage, Thursday, 5 November
Overcast. High 59°, low 47°.
0Portage, Friday, 6 November
Overcast. High 57°, low 43°.
0Portage, Saturday, 7 November
Overcast. High 55°, low 41°.
0.02Portage, Sunday, 8 November
Light rain. High 49°, low 44°.
0.41Portage, Monday, 9 November
Rain. High 45°, low 42°.
0Portage, Tuesday, 10 November
Overcast. High 46°, low 41°.
0Portage, Wednesday, 11 November
Overcast. High 47°, low 41°.
0.34Portage, Thursday, 12 November
Rain. High 44°, low 41°.
0.01Portage, Friday, 13 November
Light rain. High 52°, low 43°.
0.04Portage, Saturday, 14 November
Light rain. High 48°, low 46°.
0.05
Portage, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Portage, Monday, 16 November
Climate normal for this date — 60-year average.
0.1
Portage, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09Portage, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Portage, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Portage, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Portage, Saturday, 21 November
Climate normal for this date — 60-year average.
0.03Portage, Sunday, 22 November
Climate normal for this date — 60-year average.
0.1Portage, Monday, 23 November
Climate normal for this date — 60-year average.
0.06Portage, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.06Portage, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.09
Portage, Thursday, 26 November
Climate normal for this date — 60-year average.
0.13Portage, Friday, 27 November
Climate normal for this date — 60-year average.
0.09Portage, Saturday, 28 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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