Hazardous Weather Conditions
Current conditions at
Marysville Union County Airport (KMRT)
Lat: 40.22°NLon: 83.35°WElev: 1021ft.
Fair
93°F
34°C
| Humidity | 59% |
| Wind Speed | SW 6 mph |
| Barometer | 30.04 in |
| Dewpoint | 77°F (25°C) |
| Visibility | 10.00 mi |
| Heat Index | 107°F (42°C) |
| Last update | 1 Sep 5:55 pm EDT |
Extended Forecast for
Plain City OH
Heat Advisory September 1, 06:28pm until September 3, 08:00pm
NOW until 8:00pm Thu

Heat Advisory
Tonight

Low: 72 °F
Mostly Clear
Wednesday

High: 92 °F
Sunny
Wednesday Night

Low: 74 °F
Mostly Clear
Thursday

High: 88 °F
Chance
ShowersThursday Night

Low: 72 °F
Showers
LikelyFriday
High: 87 °F
Chance
Showers then
Chance
T-stormsFriday Night

Low: 68 °F
Chance
T-stormsSaturday

High: 84 °F
Chance
T-storms
Detailed Forecast
Tonight
Mostly clear, with a low around 72. West wind 5 to 9 mph becoming light after midnight.
Wednesday
Sunny, with a high near 92. Heat index values as high as 102. Southwest wind 5 to 9 mph.
Wednesday Night
Mostly clear, with a low around 74. Southwest wind 3 to 5 mph.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 88. West wind 6 to 9 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 72. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 87. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Saturday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 61.
Labor Day
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST
Point Forecast:
Plain City OH
40.11°N 83.27°W (Elev. 928 ft)
40.11°N 83.27°W (Elev. 928 ft)
4:00 pm EDT Sep 1, 2026
6pm EDT Sep 1, 2026-6pm EDT Sep 8, 2026



