Weather in Crystal Lake, IA
Crystal Lake, Saturday, 14 November, 13:50
Clear. Feels like 41°. High 44°, low 21°.
Monthly outlook for Crystal Lake, IA: average high 48.3°, average low 34.6°. That is 4.5° above the climate normal for November. Precipitation is expected on 4 days (about 3.0 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 27 November (59.1°), the coolest 14 November (20.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 November – 23 November | 49.9° | 42.4° | +4.1° |
| 24 November – 3 December | 45.8° | 35.5° | +5.7° |
| 4 December – 13 December | at normal | 30.3° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Woden (6 mi).
0Crystal Lake, Sunday, 15 November
Clear. High 48°, low 23°.
0
Crystal Lake, Monday, 16 November
Partly cloudy. High 51°, low 29°.
0
Crystal Lake, Tuesday, 17 November
Overcast. High 54°, low 38°.
0Crystal Lake, Wednesday, 18 November
Overcast. High 56°, low 44°.
0Crystal Lake, Thursday, 19 November
Overcast. High 53°, low 46°.
0.04
Crystal Lake, Friday, 20 November
Light rain. High 58°, low 39°.
1.24Crystal Lake, Saturday, 21 November
Heavy rain. High 58°, low 39°.
0Crystal Lake, Sunday, 22 November
Overcast. High 38°, low 32°.
0Crystal Lake, Monday, 23 November
Clear. High 38°, low 28°.
0Crystal Lake, Tuesday, 24 November
Light rain. High 40°, low 31°.
0Crystal Lake, Wednesday, 25 November
Overcast. High 49°, low 42°.
0.02Crystal Lake, Thursday, 26 November
Light rain. High 50°, low 43°.
1.63Crystal Lake, Friday, 27 November
Heavy rain. High 59°, low 50°.
0.09
Crystal Lake, Saturday, 28 November
Snow. High 51°, low 26°.
0Crystal Lake, Sunday, 29 November
Overcast. High 27°, low 24°.
0.05Crystal Lake, Monday, 30 November
Climate normal for this date — 60-year average.
0.07Crystal Lake, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.03Crystal Lake, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.06Crystal Lake, Thursday, 3 December
Climate normal for this date — 60-year average.
0.03
Crystal Lake, Friday, 4 December
Climate normal for this date — 60-year average.
0.04Crystal Lake, Saturday, 5 December
Climate normal for this date — 60-year average.
0.03Crystal Lake, Sunday, 6 December
Climate normal for this date — 60-year average.
0.03Crystal Lake, Monday, 7 December
Climate normal for this date — 60-year average.
0.04Crystal Lake, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.05Crystal Lake, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.03Crystal Lake, Thursday, 10 December
Climate normal for this date — 60-year average.
0.05Crystal Lake, Friday, 11 December
Climate normal for this date — 60-year average.
0.04Crystal Lake, Saturday, 12 December
Climate normal for this date — 60-year average.
0.05Crystal Lake, Sunday, 13 December
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 Crystal Lake, IA 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 Crystal Lake, IA 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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