Lake Geneva, WI 14-Day Extended Forecast
Lake Geneva extended forecast — daily highs, lows, rain chances, and wind for the next 16 days
Lake Geneva's extended outlook swings with the jet stream — Canadian air one week, Gulf moisture the next — so the 14-day trend line here is as much about which air mass wins as any single day.
| Day | Date | High | Low | Conditions | Rain | Wind |
|---|---|---|---|---|---|---|
| Saturday | Jul 4 | 81°F | 67°F | Light Drizzle | 57% | 10 mph |
| Sunday | Jul 5 | 79°F | 63°F | Overcast | 14% | 10 mph |
| Monday | Jul 6 | 77°F | 61°F | Overcast | 1% | 10 mph |
| Tuesday | Jul 7 | 80°F | 56°F | Overcast | 1% | 6 mph |
| Wednesday | Jul 8 | 80°F | 61°F | Overcast | 17% | 12 mph |
| Thursday | Jul 9 | 77°F | 64°F | Thunderstorm | 47% | 14 mph |
| Friday | Jul 10 | 76°F | 60°F | Overcast | 36% | 11 mph |
| Saturday | Jul 11 | 81°F | 60°F | Overcast | 9% | 13 mph |
| Sunday | Jul 12 | 65°F | 57°F | Overcast | 11% | 17 mph |
| Monday | Jul 13 | 72°F | 53°F | Overcast | 8% | 15 mph |
| Tuesday | Jul 14 | 75°F | 58°F | Overcast | 8% | 12 mph |
| Wednesday | Jul 15 | 79°F | 61°F | Overcast | 29% | 8 mph |
| Thursday | Jul 16 | 82°F | 65°F | Overcast | 14% | 9 mph |
| Friday | Jul 17 | 83°F | 67°F | Light Drizzle | 26% | 11 mph |
| Saturday | Jul 18 | 85°F | 69°F | Light Drizzle | 27% | 7 mph |
| Sunday | Jul 19 | 85°F | 69°F | Thunderstorm | 32% | 11 mph |
Forecast data from Open-Meteo (CC BY 4.0). Reliability decays past about a week — treat days 8+ as a trend, not a promise.