Martinsburg Weather Forecast
- 61
- 85
Slight Chance Thunderstorms
- 61
- 73
Mostly Cloudy
- 70
- 80
Rain Showers Likely
- 69
- 87
Chance Thunderstorms
- 70
- 83
Chance Thunderstorms
- 72
- 88
Slight Chance Thunderstorms
- 74
- 93
Slight Chance Thunderstorms
Today 16 Jul Keokuk
Partly sunny. Near steady temperature in the lower 80s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.
Tonight 16 Jul Keokuk
Partly cloudy this Evening, then becoming mostly cloudy. Cooler with Lows around 60. Northwest Winds 10 to 15 Mph.
Martinsburg Temperature Statistics
July Temperature
Ottumwa Regional Airport (11.2 miles)
Lowest 14 July, 2025
62.1 °FAverage July
76.1 °FHighest 3 July, 2025
89.1 °F
Climate (2020–Present)
Ottumwa Regional Airport (11.2 miles)
Average Low 2020–2025
41.7 °FAverage 2020–2025
52.1 °FAverage High 2020–2025
62.5 °F