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 Crystal Lake Weather Forecast Summary |
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Today
May 18th
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Tuesday
May 19th
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Wednesday
May 20th
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Thursday
May 21st
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Friday
May 22nd
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Thundershowers |
Mix of Sun and Cloud |
Mostly Sunny |
Mostly Sunny |
Mix of Cloud and Sun |
82°F
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72°F
58°F |
59°F
48°F |
65°F
46°F |
58°F
49°F |
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| Crystal Lake Detailed Weather Forecast |
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| Monday, May 18th, 2026 |
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Overnight |
Temperature: 71°F |
| Clear with cloudy periods. Slight chance of a thunderstorm. Windy at times. |
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Morning |
Temperature: 70°F |
| Mostly cloudy with showers likely. Chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 75°F |
| A mix of cloud and sun with a few showers. Chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 74°F |
| A mix of clear and cloudy skies with a chance of showers or thundershowers. Windy at times. |
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| Tuesday, May 19th, 2026 |
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Overnight |
Temperature: 70°F |
| A mix of clear and cloudy skies with a chance of showers. Slight chance of a thunderstorm. Windy. |
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Morning |
Temperature: 70°F |
| Mostly cloudy with a chance of showers or thundershowers. Windy at times. |
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Afternoon |
Temperature: 67°F |
| A mix of sun and cloud with a chance of showers or thundershowers. Windy at times. |
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Evening |
Temperature: 60°F |
| Clear with cloudy periods with a chance of showers. Windy at times. |
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| Wednesday, May 20th, 2026 |
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Overnight |
Temperature: 49°F |
| Mostly clear. |
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Morning |
Temperature: 51°F |
| Mostly sunny. |
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Afternoon |
Temperature: 58°F |
| Mostly sunny. Windy at times. |
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Evening |
Temperature: 49°F |
| A mix of clear and cloudy skies. |
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| Thursday, May 21st, 2026 |
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Overnight |
Temperature: 46°F |
| Mostly clear. |
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Morning |
Temperature: 54°F |
| Sunny. |
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Afternoon |
Temperature: 65°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 60°F |
| A mix of cloudy and clear skies. |
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| Friday, May 22nd, 2026 |
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Overnight |
Temperature: 54°F |
| Cloudy with a chance of showers. Windy at times. |
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Morning |
Temperature: 56°F |
| A mix of cloud and sun with a chance of showers. |
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Afternoon |
Temperature: 51°F |
| A mix of cloud and sun with a chance of showers. Windy at times. |
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Evening |
Temperature: 51°F |
| Clear with cloudy periods. |
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| Saturday, May 23rd, 2026 |
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Overnight |
Temperature: 47°F |
| Mostly clear. |
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Morning |
Temperature: 53°F |
| Sunny. |
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Afternoon |
Temperature: 65°F |
| A mix of sun and cloud with a chance of showers. |
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Evening |
Temperature: 56°F |
| A mix of cloudy and clear skies with a chance of showers. |
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| Sunday, May 24th, 2026 |
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Overnight |
Temperature: 54°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 61°F |
| Sunny. |
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Afternoon |
Temperature: 78°F |
| Sunny. |
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Evening |
Temperature: 71°F |
| Mostly clear. |
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| Monday, May 25th, 2026 |
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Overnight |
Temperature: 66°F |
| Mostly clear. Slight chance of a thunderstorm. |
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Morning |
Temperature: 71°F |
| A mix of sun and cloud with a chance of showers or thundershowers. Windy at times. |
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Afternoon |
Temperature: 78°F |
| A mix of sun and cloud with a chance of showers or thundershowers. Windy at times. |
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Evening |
Temperature: 73°F |
| Mostly clear with a chance of showers or thundershowers. |
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