Weather in Illco, WY
Illco, Wednesday, 21 October, 06:03
Overcast. Feels like 42°. High 73°, low 42°.
Monthly outlook for Illco, WY: average high 53.2°, average low 37.3°. That is 1.5° above the climate normal for October. Precipitation is expected on 3 days (about 2.6 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 21 October (73.3°), the coolest 5 November (19.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 57.1° | 52.8° | +2.4° |
| 31 October – 9 November | 46.7° | 46.5° | +0.1° |
| 10 November – 19 November | at normal | 42.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Bar Nunn (10 mi).
0
Illco, Thursday, 22 October
Partly cloudy. High 71°, low 48°.
0
Illco, Friday, 23 October
Clear. High 67°, low 49°.
0Illco, Saturday, 24 October
Overcast. High 48°, low 37°.
0.03
Illco, Sunday, 25 October
Light rain. High 45°, low 41°.
0.02Illco, Monday, 26 October
Light rain. High 51°, low 40°.
0Illco, Tuesday, 27 October
Overcast. High 59°, low 36°.
0Illco, Wednesday, 28 October
Clear. High 48°, low 33°.
0Illco, Thursday, 29 October
Overcast. High 53°, low 33°.
0Illco, Friday, 30 October
Overcast. High 56°, low 36°.
0Illco, Saturday, 31 October
Overcast. High 57°, low 44°.
0Illco, Sunday, 1 November
Overcast. High 60°, low 43°.
0Illco, Monday, 2 November
Overcast. High 58°, low 45°.
1.72
Illco, Tuesday, 3 November
Snow. High 49°, low 28°.
0.79Illco, Wednesday, 4 November
Snow. High 29°, low 23°.
0.07Illco, Thursday, 5 November
Light snow. High 27°, low 20°.
0.04Illco, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Illco, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Illco, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Illco, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Illco, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.03
Illco, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.03Illco, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Illco, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Illco, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Illco, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Illco, Monday, 16 November
Climate normal for this date — 60-year average.
0.03Illco, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.04Illco, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.02Illco, Thursday, 19 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 Illco, WY 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 Illco, WY 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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