Weather in Crystal Lake, CT
Crystal Lake, Sunday, 9 August, 00:31
Clear. Feels like 69°. High 88°, low 68°.
Monthly outlook for Crystal Lake, CT: average high 78.7°, average low 58°. That is 0.9° below the climate normal for August. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 10 August (89.1°), the coolest 22 August (47.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 79.8° | 81° | -0.7° |
| 19 August – 28 August | 76.8° | 79.1° | -1.3° |
| 29 August – 7 September | at normal | 77.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Springfield (15 mi).
0
Crystal Lake, Monday, 10 August
Clear. High 89°, low 66°.
0.01
Crystal Lake, Tuesday, 11 August
Light rain. High 85°, low 65°.
0.05Crystal Lake, Wednesday, 12 August
Light rain. High 74°, low 60°.
0.04Crystal Lake, Thursday, 13 August
Light rain. High 81°, low 60°.
0Crystal Lake, Friday, 14 August
Clear. High 74°, low 51°.
0Crystal Lake, Saturday, 15 August
Clear. High 76°, low 51°.
0Crystal Lake, Sunday, 16 August
Clear. High 78°, low 51°.
0.02Crystal Lake, Monday, 17 August
Light rain. High 81°, low 53°.
0.38Crystal Lake, Tuesday, 18 August
Rain. High 73°, low 60°.
0
Crystal Lake, Wednesday, 19 August
Overcast. High 77°, low 58°.
0.5Crystal Lake, Thursday, 20 August
Rain. High 74°, low 62°.
0Crystal Lake, Friday, 21 August
Overcast. High 72°, low 54°.
0Crystal Lake, Saturday, 22 August
Clear. High 75°, low 48°.
0.02Crystal Lake, Sunday, 23 August
Light rain. High 80°, low 54°.
0.07Crystal Lake, Monday, 24 August
Light rain. High 83°, low 69°.
0.08
Crystal Lake, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07
Crystal Lake, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12Crystal Lake, Thursday, 27 August
Climate normal for this date — 60-year average.
0.15Crystal Lake, Friday, 28 August
Climate normal for this date — 60-year average.
0.13Crystal Lake, Saturday, 29 August
Climate normal for this date — 60-year average.
0.08Crystal Lake, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06Crystal Lake, Monday, 31 August
Climate normal for this date — 60-year average.
0.08Crystal Lake, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.14Crystal Lake, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1Crystal Lake, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Crystal Lake, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Crystal Lake, Saturday, 5 September
Climate normal for this date — 60-year average.
0.17Crystal Lake, Sunday, 6 September
Climate normal for this date — 60-year average.
0.11
Crystal Lake, Monday, 7 September
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, CT 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, CT 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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