See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:00
Sunrise
19:13
Sunset
Moon
Waxing Crescent
13:06
Moonrise
21:10
Moonset
Daily Forecast
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Thursday
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Saturday
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Air Quality Data Available
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UV Index
Humidity
Weather in Mason City today, September 16, 2026
Cloud cover dominates in Mason City on September 16, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Expect a grey start, with morning cloud around 100% by 03:00. Outdoor plans early on should not rely on bright skies.
The temperature range runs from about 9°C up to 22°C. Expect humidity between 59% and 100%, most humid near 22:00. A lighter breeze peaks around 13:00 near 3.6 km/h.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 14:00. Outdoor plans may still want a flexible backup. Expect visibility near 15.0 km, with poorer spells close to 9.6 km. The sun rises at 07:00 and sets at 19:13, for a total of 12 hours 13 minutes of sunlight today.
Taken together, overcast skies in Mason City on September 16, 2026 favour indoor or covered options, with temperatures near 22°C.
Frequently asked questions about weather in Mason City
How warm does it get in Mason City?
The warmest month in Mason City is July, with average high temperatures of 28°C. The average temperature during this period is around 23°C.
How cold does it get in Mason City?
The coldest month in Mason City is January, with average low temperatures of -11°C. The average temperature during this period is around -7°C.
What is the wettest time of year in Mason City?
The wettest month in Mason City is June, with an average of 133mm of precipitation.
What is the driest time of year in Mason City?
The driest month in Mason City is January, with an average of 35mm of precipitation.
