Forecast Details for Irwin, IA

Recent Locations: Renwick, IA Nitro, WV Irwin, IA

This Afternoon: Sunny, with a high near 81. Breezy, with a south wind around 20 mph, with gusts as high as 28 mph.

Tonight: Increasing clouds, with a low around 59. Breezy, with a south wind 18 to 21 mph, with gusts as high as 31 mph.

Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 72. Breezy, with a south wind 18 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night: Showers likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 43. South wind 8 to 13 mph becoming north northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Friday: Sunny, with a high near 64. North northwest wind around 11 mph, with gusts as high as 17 mph.

Friday Night: Mostly clear, with a low around 40. North northwest wind 5 to 8 mph becoming east northeast after midnight.

Saturday: A slight chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 63. East southeast wind 6 to 11 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.

Saturday Night: A chance of showers, mainly after 1am. Mostly cloudy, with a low around 46. East wind 3 to 7 mph.

Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 65. Breezy, with an east southeast wind 9 to 18 mph, with gusts as high as 26 mph.

Sunday Night: Showers and possibly a thunderstorm. Cloudy, with a low around 48. East southeast wind 11 to 17 mph, with gusts as high as 26 mph.

Monday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 61. Breezy, with a west northwest wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 32 mph.

Monday Night: A slight chance of showers. Mostly cloudy, with a low around 38. Breezy, with a west northwest wind 19 to 24 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 31 mph.

Tuesday: Partly sunny, with a high near 58. West northwest wind 7 to 9 mph.

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails

Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds