Gutzmers Twin Oaks Airport Weather Forecast
- 65
- 91
Chance Thunderstorms
- 58
- 81
Mostly Sunny
- 61
- 84
Mostly Sunny
- 65
- 87
Chance Rain Showers
- 63
- 82
Chance Thunderstorms
- 61
- 82
Chance Thunderstorms
Today 27 Jul Jefferson
Very warm and humid. Partly sunny until late afternoon then clearing. Patchy dense fog in the morning. A 50 percent chance of light Showers and Thunderstorms. Highs around 90. Southwest Winds 5 to 15 Mph. Highest heat index Readings 98 to 103 in the late morning and afternoon.
Tonight 27 Jul Jefferson
Mostly clear then becoming mostly cloudy after midnight then becoming partly cloudy. A 20 percent chance of light Showers and Thunderstorms in the evening. Lows in the mid 60s. North Winds 5 to 15 Mph. Highest heat index Readings 95 to 99 in the evening.
Gutzmers Twin Oaks Airport Temperature Statistics
July Temperature
Janesville-Rock County (21.1 miles)
Lowest 22 July, 2026
50 °FAverage July
74.2 °FHighest 14 July, 2026
95 °F
Climate (2021–2026)
Janesville-Rock County (21.1 miles)
Average Low 2021–2026
40.3 °FAverage 2021–2026
48.7 °FAverage High 2021–2026
60.4 °F