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 2:15pm(EDT) on 6/11/26

 Temperature

Temperature
Current: 89°F
    Rate of Change: 1°F/hr.
    High: 89°F at 1:27pm
    Low: 71°F at 6:21am

    Monthly High: 89°F on 6/11/26
    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: 69.0%
    High: 97.0% at 4:01am
    Low:  66.0% at 1:34pm
Dew Point: 77°F
Heat Index: 101°F
    High: 105°F at 1:49pm

    Monthly High: 105°F on 6/11/26
    Yearly High:   105°F on 6/11/26
 
Wind Rose Wind & Related (Calm)
Current: WNW at 0.0mph
    High Today: 5.0mph at 10:29am
    Monthly High: 18.8mph on 6/6/26
    Yearly High:   38.8mph on 3/11/26
Wind Chill: 89°F
    Low: 71°F at 6:21am
    Monthly Low: 49°F on 6/2/26
    Yearly Low:     -9°F on 1/24/26
    Wind Run Today: 0 miles
    Wind Run Month: 18 miles
    Wind Run Year:  4733 miles
 
Barometric Pressure Barometric Pressure (Steady)
Current: 29.81in
    Rate of Change: -0.01in/hr
    High: 29.86in at 9:07am
    Low:  29.78in at 5:46am


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

 
Daily/Yearly Rain Precipitation

Today: 0.00in
    Hi Rain Rate:   0.00in/hr at 12:00am
    Current Hour:  0.00in
    Last 24 Hours: 0.71in

This Month:    1.17in
Year-to-Date:  15.61in

 
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: 990.0 W/m2
    Today's High: 1009.0 W/m2  at 2:05pm
    Monthly High: 1167.0W/m2 on 6/8/26
    Yearly High:   1199.0W/m2 on 5/14/26
 
Evapotranspiration Evapotranspiration
Today: 0.10in
    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:  7.2
   Month:  70.9
   Year:    271.9
Heating Degree Days
    Today: 0.0
    Month: 22.6
    Year:   3018.2
Beyond the Stratosphere

Solar/Lunar Stats

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