Mystic, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mystic, a city in Appanoose County, Iowa.
Today
90°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5pm. Mostly sunny. High near 90, with temperatures falling to around 88 in the afternoon. Southwest wind 3 to 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Mystic
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 17% |
| Tonight | 66°F | Showers And Thunderstorms Likely | 7 mph N | 67% |
| Wednesday | 78°F | Chance Showers And Thunderstorms | 5 to 8 mph NNE | 90% |
| Wednesday Night | 62°F | Showers And Thunderstorms Likely | 1 to 7 mph NNE | 64% |
| Thursday | 82°F | Chance Showers And Thunderstorms then Mostly Sunny | 3 mph NE | 39% |
| Thursday Night | 63°F | Mostly Clear | 2 mph ESE | 3% |
| Friday | 87°F | Sunny | 0 to 3 mph S | 7% |
| Friday Night | 67°F | Mostly Clear | 3 mph S | 14% |
| Saturday | 90°F | Slight Chance Showers And Thunderstorms | 3 to 9 mph SSW | 15% |
| Saturday Night | 72°F | Mostly Clear | 10 to 14 mph SSW | 10% |
| Sunday | 92°F | Sunny | 15 mph SSW | 10% |
| Sunday Night | 72°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 to 14 mph SSW | 21% |
| Monday | 93°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 14 to 17 mph SSW | 21% |
| Monday Night | 73°F | Chance Showers And Thunderstorms | 12 to 16 mph SSW | 26% |
Forecast source: National Weather Service (api.weather.gov) for Mystic (40.779, -92.944). Updated through the day.
Growing snapshot for Mystic
Last spring frost
Apr 18
First fall frost
Oct 23
Growing season
187 days
Hardiness zone
5b
More local growing data for Mystic: nearby ZIP 52574 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Rathbun Dam, Ia (3.8 mi from Mystic). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.