Twain Weather Forecast
- 74
- 93
Mostly Sunny
- 71
- 89
Rain Showers Likely
- 70
- 84
Chance Thunderstorms
- 72
- 88
Slight Chance Thunderstorms
- 73
- 92
Mostly Sunny
- 73
- 93
Slight Chance Thunderstorms
Today 23 Jul Johnson
Partly cloudy. Hot with Highs in the lower 90s. South Winds 10 to 15 Mph. Heat index Values up to 105.
Tonight 23 Jul Johnson
Clear in the Evening, then partly cloudy with a slight chance of Showers and Thunderstorms after midnight. Humid with Lows in the mid 70s. South Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 100 early in the evening.
Twain Temperature Statistics
July Temperature
Iowa City Municipal Airport (1.2 miles)
Lowest 13 July, 2025
62.7 °FAverage July
77.5 °FHighest 3 July, 2025
93.7 °F
Climate (2020–Present)
Iowa City Municipal Airport (1.2 miles)
Average Low 2020–2025
42.2 °FAverage 2020–2025
52.4 °FAverage High 2020–2025
62.6 °F