Forecast Details for Saint Johns, OH

Recent Locations: Saint Johns, OH

Current Alerts for Saint Johns, OH: Freeze Warning

Tonight: Widespread frost after 4am. Otherwise, mostly cloudy, with a low around 30. Northeast wind around 8 mph.

Thursday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 58. Northeast wind around 7 mph.

Thursday Night: Mostly clear, with a low around 37. Northeast wind 7 to 9 mph.

Friday: A chance of showers after 2pm. Increasing clouds, with a high near 70. Southeast wind around 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night: Showers likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 59. Breezy, with a south wind 13 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday: A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 77. Windy. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night: Mostly cloudy, with a low around 64. Breezy.

Sunday: Mostly sunny, with a high near 80. Breezy.

Sunday Night: Partly cloudy, with a low around 64.

Monday: A chance of showers after 8am. Partly sunny, with a high near 78. Breezy. Chance of precipitation is 50%.

Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

Tuesday: A chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 40%.

Tuesday Night: Mostly clear, with a low around 52.

Wednesday: Sunny, with a high near 76.

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds