Johnston Weather Forecast
- 6
- 19
Mostly Sunny
- 20
- 31
Mostly Sunny
- 31
- 42
Partly Sunny
- 34
- 51
Partly Sunny
- 36
- 53
Chance Rain
- 29
- 51
Chance Rain
Today 21 Feb Polk
Sunny. Highs around 19. Southwest Winds 5 to 10 Mph.
Tonight 21 Feb Polk
Mostly clear. Lows around 6 above. Southwest Winds 5 to 10 Mph.
Johnston Temperature Statistics
February Temperature
Ankeny Regional Airport (6.8 miles)
Lowest 18 February, 2025
-13 °FAverage February
17.4 °FHighest 2 February, 2025
55.4 °F
Climate (2020–Present)
Ankeny Regional Airport (6.8 miles)
Average Low 2020–2025
41 °FAverage 2020–2025
51.5 °FAverage High 2020–2025
61.5 °F