National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Showers and Thunderstorms to Start the Work Week

Areas of rain and thunderstorms are forecast Monday across the central and eastern states. Some mixed rain and snow is possible in the high Sierra Mountains. Heavy to excessive rain may bring flooding in the central Appalachians. Read More >

Hazardous Weather Conditions

Current conditions at

Marysville Union County Airport (KMRT)

Lat: 40.22°NLon: 83.35°WElev: 1021ft.

Light Rain Fog/Mist

63°F

17°C

Humidity 100%
Wind Speed NE 10 G 22 mph
Barometer 30.01 in
Dewpoint 63°F (17°C)
Visibility 4.00 mi
Last update 21 Sep 1:55 am EDT
Extended Forecast for

4 Miles SSW Ostrander OH

Flood Watch September 21, 02:20am until September 21, 12:00pm
Flood Advisory until September 21, 02:30am
Click here for hazard details and duration
Flood Watch
...
  •  
    Flood Watch September 21, 02:20am until September 21, 12:00pm
    Flood Advisory until September 21, 02:30am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 57 °F

    Showers

  • Monday

    Monday: Showers, mainly before 5pm. High near 66. Northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 66 °F

    Showers then
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly between 7pm and 8pm. Mostly cloudy, with a low around 54. Northeast wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 68. Northeast wind 9 to 11 mph.

    High: 68 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 55. Northeast wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 57. Northeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers, mainly before 5pm. High near 66. Northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A chance of showers, mainly between 7pm and 8pm. Mostly cloudy, with a low around 54. Northeast wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Mostly cloudy, with a high near 68. Northeast wind 9 to 11 mph.
Tuesday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 55. Northeast wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Wednesday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Thursday
Mostly cloudy, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Ostrander OH
 40.22°N 83.23°W (Elev. 925 ft)
Last Update:
6:59 pm EDT Sep 20, 2026
Forecast Valid:
2am EDT Sep 21, 2026-6pm EDT Sep 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation