Jamaica, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jamaica, a city in Guthrie County, Iowa.
Today
80°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 80, with temperatures falling to around 76 in the afternoon. North northwest wind 6 to 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Jamaica
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Showers And Thunderstorms Likely | 6 to 10 mph NNW | 59% |
| Tonight | 60°F | Showers And Thunderstorms | 5 to 10 mph NNE | 91% |
| Wednesday | 73°F | Chance Showers And Thunderstorms | 7 mph ENE | 45% |
| Wednesday Night | 55°F | Partly Cloudy | 3 mph ENE | 10% |
| Thursday | 81°F | Mostly Sunny | 0 to 5 mph E | 1% |
| Thursday Night | 60°F | Mostly Clear | 3 mph SSE | 3% |
| Friday | 86°F | Sunny | 2 to 8 mph S | 5% |
| Friday Night | 66°F | Mostly Clear | 7 mph S | 11% |
| Saturday | 90°F | Sunny | 3 to 12 mph S | 11% |
| Saturday Night | 71°F | Mostly Clear | 12 mph S | 14% |
| Sunday | 90°F | Mostly Sunny | 12 mph SSE | 14% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms | 10 mph SSE | 31% |
| Monday | 90°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 14 mph SSE | 31% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 13 mph SE | 23% |
Forecast source: National Weather Service (api.weather.gov) for Jamaica (41.845, -94.307). Updated through the day.
Growing snapshot for Jamaica
Last spring frost
Apr 25
First fall frost
Oct 10
Growing season
166 days
Hardiness zone
5a
More local growing data for Jamaica: nearby ZIP 50128 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Perry, Ia (9.8 mi from Jamaica). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.