Dewey Weather Forecast
- 70
- 87
Chance Thunderstorms
- 63
- 83
Partly Sunny
- 67
- 83
Slight Chance Thunderstorms
- 62
- 81
Chance Rain Showers
- 59
- 77
Slight Chance Thunderstorms
- 60
- 78
Partly Sunny
Today 16 Aug Vigo
Sunny, then becoming partly cloudy toward Daybreak, then becoming mostly Cloudy, then becoming partly cloudy late this afternoon. Showers likely with a slight chance of Thunderstorms toward Daybreak, then a chance of Showers and Thunderstorms. Some Thunderstorms may produce heavy rainfall. Humid with Highs in the upper 80s. Light and variable Winds, becoming southwest 5 to 10 Mph toward Daybreak, then becoming west late this afternoon. Chance of rain 60 percent.
Tonight 16 Aug Vigo
Partly cloudy with a chance of Showers. A chance of Thunderstorms through the late Overnight, then a slight chance of Thunderstorms toward daybreak. Humid with Lows in the lower 70s. Northwest Winds around 5 Mph. Chance of rain 30 percent.
Dewey Temperature Statistics
August Temperature
Terre Haute Regional Airport (5 miles)
Lowest 5 August, 2026
60.1 °FAverage August
75.1 °FHighest 10 August, 2026
89.1 °F
Climate (2021–2026)
Terre Haute Regional Airport (5 miles)
Average Low 2021–2026
45.9 °FAverage 2021–2026
55.8 °FAverage High 2021–2026
65.7 °F