Weather in Riley, IL
Riley, Saturday, 24 October, 14:11
Mostly clear. Feels like 69°. High 70°, low 48°.
Monthly outlook for Riley, IL: average high 61.9°, average low 47.9°. That is 4.4° above the climate normal for October. Precipitation is expected on 6 days (about 1.3 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 25 October (72°), the coolest 4 November (33.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 24 October – 2 November | 65.5° | 55.5° | +5.6° |
| 3 November – 12 November | 55.7° | 50.2° | +3.1° |
| 13 November – 22 November | at normal | 45.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Sycamore (14 mi).
0
Riley, Sunday, 25 October
Overcast. High 72°, low 48°.
0Riley, Monday, 26 October
Overcast. High 64°, low 48°.
0Riley, Tuesday, 27 October
Overcast. High 67°, low 49°.
0
Riley, Wednesday, 28 October
Clear. High 70°, low 52°.
0.02
Riley, Thursday, 29 October
Light rain. High 66°, low 56°.
0Riley, Friday, 30 October
Overcast. High 59°, low 49°.
0.07Riley, Saturday, 31 October
Light rain. High 64°, low 53°.
0.47Riley, Sunday, 1 November
Light rain. High 65°, low 56°.
0.2Riley, Monday, 2 November
Light rain. High 58°, low 47°.
0Riley, Tuesday, 3 November
Clear. High 51°, low 39°.
0
Riley, Wednesday, 4 November
Partly cloudy. High 49°, low 34°.
0Riley, Thursday, 5 November
Overcast. High 54°, low 37°.
0.21Riley, Friday, 6 November
Rain. High 59°, low 49°.
0.19Riley, Saturday, 7 November
Light rain. High 61°, low 55°.
0.16Riley, Sunday, 8 November
Rain. High 60°, low 47°.
0.12
Riley, Monday, 9 November
Climate normal for this date — 60-year average.
0.1Riley, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Riley, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Riley, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Riley, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Riley, Saturday, 14 November
Climate normal for this date — 60-year average.
0.08Riley, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Riley, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Riley, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.1Riley, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Riley, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Riley, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Riley, Saturday, 21 November
Climate normal for this date — 60-year average.
0.03Riley, Sunday, 22 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 Riley, 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 Riley, 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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