Dayton, Maryland Weather

27th Year of Service to the Local Community
Lat 39.243°N, Long 76.998°W, Elev 550ft (168m)


National Weather Service Forecasts/Warnings for Central Maryland (Click Here)

Latest Weather Update at 8:30pm(EDT) on 6/27/26

 Temperature

Temperature
Current: 73°F
    Rate of Change: -1°F/hr.
    High: 78°F at 3:23pm
    Low: 70°F at 8:20am

    Monthly High: 92°F on 6/12/26
    Monthly Low: 49°F on 6/2/26
    Yearly High:   94°F on 5/19/26
    Yearly Low:    3°F on 1/31/26
 

Humidity

Humidity & Related
Relative Humidity: 89.0%
    High: 94.0% at 7:08am
    Low:  77.0% at 3:20pm
Dew Point: 69°F
Heat Index: 78°F
    High: 83°F at 3:32pm

    Monthly High: 106°F on 6/11/26
    Yearly High:   106°F on 6/11/26
 
Wind Rose Wind & Related (Calm)
Current: SSE at 0.0mph
    High Today: 2.5mph at 6:52am
    Monthly High: 18.8mph on 6/6/26
    Yearly High:   38.8mph on 3/11/26
Wind Chill: 73°F
    Low: 70°F at 8:20am
    Monthly Low: 49°F on 6/2/26
    Yearly Low:     -9°F on 1/24/26
    Wind Run Today: 0 miles
    Wind Run Month: 43 miles
    Wind Run Year:  4757 miles
 
Barometric Pressure Barometric Pressure (Steady)
Current: 29.95in
    Rate of Change: 0.00in/hr
    High: 30.05in at 12:17am
    Low:  29.93in at 6:17pm


Yearly High: 30.74in on 1/24/26
Yearly Low:  29.23in on 3/16/26

 
Daily/Yearly Rain Precipitation

Today: 0.23in
    Hi Rain Rate:   0.19in/hr at 6:58am
    Current Hour:  0.00in
    Last 24 Hours: 0.23in

This Month:    2.51in
Year-to-Date:  16.95in

 
UV Index UV Index
Current: 0.00
    Today's High: 0.00 at 12:00am
    Monthly High: 0.00 on 6/1/26
    Yearly High:   0.00 on 1/1/26

Solar Radiation

Solar Radiation
Current: 7.0 W/m2
    Today's High: 515.0 W/m2  at 11:39am
    Monthly High: 1255.0W/m2 on 6/12/26
    Yearly High:   1255.0W/m2 on 6/12/26
 
Evapotranspiration Evapotranspiration
Today: 0.06in
    Monthly High:  0.18in on 6/4/26
    Yearly High:     0.19in on 5/5/26
 
Cooling Degree Days Degree Days
Cooling Degrees Days
   Today:  6.9
   Month:  206.6
   Year:    407.6
Heating Degree Days
    Today: 0.0
    Month: 33.3
    Year:   3029.0
Beyond the Stratosphere

Solar/Lunar Stats

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