Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Grayslake is from June, August, September. — consistent weather climate
🌦Humid
| Score | 11 | 17 | 18 | 42 | 77 | 82 | 78 | 82 | 83 | 63 | 30 | 13 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Polar | Polar | Cold | Cold | Cool & rainy | Humid | Humid | Humid | Pleasant | Mild | Cold | Cold |
| Temperature | -7–0°C | -7–3°C | 0–9°C | 4–14°C | 10–21°C | 16–28°C | 19–28°C | 18–28°C | 15–24°C | 9–17°C | 2–10°C | -3–4°C |
| Feels like | -12–-4°C | -12–-2°C | -5–6°C | 0–11°C | 8–20°C | 16–28°C | 20–30°C | 19–30°C | 14–24°C | 6–15°C | -2–6°C | -8–0°C |
| Precipitation | 67mm 11 days | 44mm 8 days | 94mm 10 days | 97mm 12 days | 108mm 10 days | 85mm 8 days | 94mm 9 days | 85mm 8 days | 79mm 8 days | 90mm 9 days | 48mm 6 days | 58mm 7 days |
| Sunshine | 3.8h ☀︎ 40% | 7.3h ☀︎ 69% | 6.7h ☀︎ 56% | 8.2h ☀︎ 61% | 9.5h ☀︎ 65% | 11.7h ☀︎ 77% | 11.7h ☀︎ 79% | 11.6h ☀︎ 84% | 9.4h ☀︎ 76% | 7.7h ☀︎ 69% | 6.3h ☀︎ 64% | 3.8h ☀︎ 42% |
| Wind | W · 18 km/h | W · 20 km/h | W · 20 km/h | SW · 21 km/h | SE · 19 km/h | SW · 19 km/h | W · 16 km/h | SW · 16 km/h | S · 17 km/h | W · 19 km/h | SW · 21 km/h | W · 19 km/h |
| Humidity (%) | 79% | 70% | 69% | 67% | 66% | 65% | 71% | 72% | 70% | 69% | 69% | 75% |
| Day length | 9.5h | 10.6h | 12.0h | 13.4h | 14.6h | 15.2h | 14.9h | 13.8h | 12.5h | 11.0h | 9.8h | 9.1h |