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51040 Weather (Onawa, IA)

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Overcast at Onawa (51040), temperature is 67°F19°C, dew point 64°F18°C, humidity 90%. Wind direction is SE at 8 mphat 13 km/h with visibility of 10 mi16 km. Barometric pressure is 29.98 in1015 mb. Last update: 11:32 pm.*
*Time is approximately 11:32 pm Sat, Sep 26, 2026. Time will be within 15 minutes of current local time. Onawa weather forecast data is updated every 15 minutes.
Onawa IA Weather - 12:41 am

Onawa Weather Forecast

Weather forecast for: Onawa IA
Last Update: 11:19 pm CDT Sep 26, 2026
Tonight: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a steady temperature around 67. South southeast wind 3 to 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday: Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 73. East southeast wind 3 to 5 mph.
Sunday Night: Increasing clouds, with a low around 62. Light east wind.
Monday: Cloudy, then gradually becoming mostly sunny, with a high near 71. Light southeast wind becoming south southeast 5 to 9 mph in the morning. Winds could gust as high as 16 mph.
Monday Night: Mostly cloudy, with a low around 60. Southeast wind 7 to 10 mph, with gusts as high as 18 mph.
Tuesday: Showers and possibly a thunderstorm. High near 69. South southeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 60. South southeast wind 3 to 6 mph. Chance of precipitation is 70%.
Wednesday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 70. East southeast wind 3 to 5 mph.
Wednesday Night: A chance of showers. Mostly cloudy, with a low around 59. Calm wind becoming north around 5 mph after midnight.
Thursday: A slight chance of showers before 1pm. Mostly cloudy, with a high near 68. North wind 7 to 11 mph, with gusts as high as 21 mph.
Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 53. North northeast wind 3 to 7 mph.
Friday: A slight chance of showers. Mostly sunny, with a high near 66. East wind around 6 mph.
Friday Night: Partly cloudy, with a low around 54. Light east southeast wind.
Saturday: Mostly sunny, with a high near 65. Light and variable wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 16 mph.

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