Weather in Shamrock, IL
Shamrock, Thursday, 29 October, 06:49
Clear. Feels like 58°. High 75°, low 52°.
Monthly outlook for Shamrock, IL: average high 62.7°, average low 49.8°. That is 4.8° above the climate normal for October. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 29 October (75.4°), the coolest 6 November (37.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 63.2° | 55.8° | +4.1° |
| 8 November – 17 November | 61.8° | 50.5° | +6.3° |
| 18 November – 27 November | at normal | 46.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Bloomington (5 mi).
0.02
Shamrock, Friday, 30 October
Light rain. High 69°, low 49°.
1.16Shamrock, Saturday, 31 October
Heavy rain. High 60°, low 51°.
0.04Shamrock, Sunday, 1 November
Light rain. High 66°, low 56°.
0.04Shamrock, Monday, 2 November
Light rain. High 62°, low 53°.
0.04Shamrock, Tuesday, 3 November
Light rain. High 72°, low 61°.
0.24Shamrock, Wednesday, 4 November
Light rain. High 67°, low 52°.
0
Shamrock, Thursday, 5 November
Clear. High 52°, low 42°.
0Shamrock, Friday, 6 November
Clear. High 54°, low 38°.
0
Shamrock, Saturday, 7 November
Overcast. High 54°, low 39°.
0Shamrock, Sunday, 8 November
Overcast. High 65°, low 49°.
0.22Shamrock, Monday, 9 November
Light rain. High 57°, low 53°.
0.01Shamrock, Tuesday, 10 November
Light rain. High 54°, low 51°.
0Shamrock, Wednesday, 11 November
Overcast. High 58°, low 51°.
0Shamrock, Thursday, 12 November
Overcast. High 66°, low 47°.
0
Shamrock, Friday, 13 November
Partly cloudy. High 71°, low 52°.
0.07
Shamrock, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Shamrock, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07
Shamrock, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Shamrock, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.17Shamrock, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Shamrock, Thursday, 19 November
Climate normal for this date — 60-year average.
0.11Shamrock, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Shamrock, Saturday, 21 November
Climate normal for this date — 60-year average.
0.06Shamrock, Sunday, 22 November
Climate normal for this date — 60-year average.
0.08Shamrock, Monday, 23 November
Climate normal for this date — 60-year average.
0.11Shamrock, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.08Shamrock, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.13Shamrock, Thursday, 26 November
Climate normal for this date — 60-year average.
0.21Shamrock, Friday, 27 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 Shamrock, 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 Shamrock, 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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