Weather in Crystal Lake, IA
Crystal Lake, Thursday, 29 October, 15:13
Clear. Feels like 57°. High 59°, low 43°.
Monthly outlook for Crystal Lake, IA: average high 54.6°, average low 44.5°. That is 3.3° above the climate normal for October. Precipitation is expected on 7 days (about 5.1 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 1 November (64.7°), the coolest 7 November (34.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 55.3° | 50.9° | +2.4° |
| 8 November – 17 November | 53.5° | 44.9° | +4.8° |
| 18 November – 27 November | at normal | 39.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Woden (6 mi).
0
Crystal Lake, Friday, 30 October
Overcast. High 53°, low 42°.
0.3
Crystal Lake, Saturday, 31 October
Rain. High 62°, low 49°.
0Crystal Lake, Sunday, 1 November
Overcast. High 65°, low 52°.
1Crystal Lake, Monday, 2 November
Heavy rain. High 64°, low 57°.
0.09Crystal Lake, Tuesday, 3 November
Light rain. High 63°, low 53°.
1.74Crystal Lake, Wednesday, 4 November
Rain. High 52°, low 44°.
1.71Crystal Lake, Thursday, 5 November
Rain. High 45°, low 44°.
0.04Crystal Lake, Friday, 6 November
Light rain. High 43°, low 38°.
0Crystal Lake, Saturday, 7 November
Overcast. High 46°, low 34°.
0Crystal Lake, Sunday, 8 November
Overcast. High 44°, low 35°.
0
Crystal Lake, Monday, 9 November
Mostly clear. High 52°, low 37°.
0Crystal Lake, Tuesday, 10 November
Overcast. High 56°, low 41°.
0
Crystal Lake, Wednesday, 11 November
Partly cloudy. High 58°, low 45°.
0.03Crystal Lake, Thursday, 12 November
Light rain. High 54°, low 48°.
0.21Crystal Lake, Friday, 13 November
Light rain. High 57°, low 51°.
0.03Crystal Lake, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Crystal Lake, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Crystal Lake, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Crystal Lake, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Crystal Lake, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Crystal Lake, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Crystal Lake, Friday, 20 November
Climate normal for this date — 60-year average.
0.04Crystal Lake, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Crystal Lake, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Crystal Lake, Monday, 23 November
Climate normal for this date — 60-year average.
0.06Crystal Lake, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.02Crystal Lake, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.07Crystal Lake, Thursday, 26 November
Climate normal for this date — 60-year average.
0.08Crystal Lake, 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 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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