Logan, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Logan, a city in Harrison County, Iowa.
Today
74°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm, then patchy smoke and a slight chance of showers and thunderstorms between 1pm and 2pm, then patchy smoke and a chance of showers and thunderstorms between 2pm and 4pm, then patchy smoke and showers and thunderstorms likely. Partly sunny. High near 74, with temperatures falling to around 71 in the afternoon. North northeast wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Logan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Chance Showers And Thunderstorms | 9 to 13 mph NNE | 57% |
| Tonight | 59°F | Patchy Smoke then Showers And Thunderstorms Likely | 2 to 12 mph NNE | 68% |
| Wednesday | 75°F | Patchy Smoke | 6 mph ENE | 32% |
| Wednesday Night | 55°F | Patchy Fog | 3 mph E | 0% |
| Thursday | 80°F | Areas Of Fog then Sunny | 0 to 7 mph SE | 0% |
| Thursday Night | 63°F | Mostly Clear | 6 mph SSE | 7% |
| Friday | 85°F | Mostly Sunny | 3 to 7 mph S | 8% |
| Friday Night | 66°F | Mostly Clear | 2 to 6 mph SSE | 13% |
| Saturday | 86°F | Sunny | 5 to 10 mph SE | 12% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 6 to 10 mph SSE | 26% |
| Sunday | 88°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 5 to 10 mph SE | 20% |
| Sunday Night | 72°F | Slight Chance Showers And Thunderstorms | 12 mph SSE | 22% |
| Monday | 90°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 9 mph SSW | 22% |
| Monday Night | 68°F | Partly Cloudy then Chance Showers And Thunderstorms | 8 to 12 mph ESE | 27% |
Forecast source: National Weather Service (api.weather.gov) for Logan (41.645, -95.791). Updated through the day.
Growing snapshot for Logan
Last spring frost
Apr 29
First fall frost
Oct 8
Growing season
162 days
Hardiness zone
5b
More local growing data for Logan: nearby ZIP 51546 weather · frost dates · planting calendar · Iowa frost dates
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California Junction
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River Sioux
Woodbine
Climate data from the nearest NOAA station, Logan, Ia (1.1 mi from Logan). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.