Manson, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Manson, a city in Calhoun County, Iowa.
Tonight
65°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 10pm, then patchy fog and a chance of showers and thunderstorms. Mostly cloudy. Low around 65, with temperatures rising to around 67 overnight. South wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Manson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 65°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 54% |
| Saturday | 75°F | Patchy Fog | 7 mph NNW | 39% |
| Saturday Night | 59°F | Slight Chance Showers And Thunderstorms | 10 mph N | 19% |
| Sunday | 67°F | Chance Rain Showers | 12 mph NE | 25% |
| Sunday Night | 54°F | Chance Rain Showers | 9 mph ENE | 42% |
| Monday | 61°F | Rain Showers Likely | 9 mph ENE | 62% |
| Monday Night | 50°F | Rain Showers Likely | 3 to 7 mph NE | 58% |
| Tuesday | 61°F | Mostly Cloudy | 6 mph ENE | 12% |
| Tuesday Night | 46°F | Partly Cloudy | 3 mph E | 2% |
| Wednesday | 65°F | Mostly Sunny | 3 mph ESE | 4% |
| Wednesday Night | 50°F | Partly Cloudy | 1 mph SE | 13% |
| Thursday | 67°F | Slight Chance Rain Showers | 2 mph SSE | 22% |
| Thursday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 1 mph ENE | 15% |
| Friday | 69°F | Slight Chance Rain Showers then Partly Sunny | 3 mph SE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Manson (42.529, -94.540). Updated through the day.
Growing snapshot for Manson
Last spring frost
Apr 26
First fall frost
Oct 10
Growing season
167 days
Hardiness zone
5a
More local growing data for Manson: nearby ZIP 50563 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Farnhamville
Jolley
Knierim
Lake City
Lohrville
Lytton
Pomeroy
Rinard
Rockwell City
Somers
Twin Lakes
Climate data from the nearest NOAA station, Rockwell City, Ia (10.5 mi from Manson). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.