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 6:45am(EDT) on 8/12/26

 Temperature

Temperature
Current: 70°F
    Rate of Change: -0°F/hr.
    High: 73°F at 12:00am
    Low: 70°F at 5:54am

    Monthly High: 90°F on 8/7/26
    Monthly Low: 65°F on 8/1/26
    Yearly High:   97°F on 7/4/26
    Yearly Low:    3°F on 1/31/26
 

Humidity

Humidity & Related
Relative Humidity: 90.0%
    High: 90.0% at 3:31am
    Low:  84.0% at 12:00am
Dew Point: 67°F
Heat Index: 75°F
    High: 77°F at 12:01am

    Monthly High: 106°F on 8/6/26
    Yearly High:   117°F on 7/2/26
 
Wind Rose Wind & Related (Calm)
Current: N at 0.0mph
    High Today: 0.0mph at 12:00am
    Monthly High: 8.8mph on 8/3/26
    Yearly High:   38.8mph on 3/11/26
Wind Chill: 70°F
    Low: 70°F at 5:54am
    Monthly Low: 65°F on 8/1/26
    Yearly Low:     -9°F on 1/24/26
    Wind Run Today: 0 miles
    Wind Run Month: 2 miles
    Wind Run Year:  4782 miles
 
Barometric Pressure Barometric Pressure (Steady)
Current: 29.85in
    Rate of Change: 0.01in/hr
    High: 29.86in at 1:08am
    Low:  29.82in at 3:53am


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: 0.03in

This Month:    2.51in
Year-to-Date:  31.15in

 
UV Index UV Index
Current: 0.00
    Today's High: 0.00 at 12:00am
    Monthly High: 0.00 on 8/1/26
    Yearly High:   0.00 on 1/1/26

Solar Radiation

Solar Radiation
Current: 11.0 W/m2
    Today's High: 11.0 W/m2  at 6:41am
    Monthly High: 1058.0W/m2 on 8/6/26
    Yearly High:   1255.0W/m2 on 6/12/26
 
Evapotranspiration Evapotranspiration
Today: 0.00in
    Monthly High:  0.15in on 8/7/26
    Yearly High:     0.19in on 5/5/26
 
Cooling Degree Days Degree Days
Cooling Degrees Days
   Today:  1.7
   Month:  127.4
   Year:    904.8
Heating Degree Days
    Today: 0.0
    Month: 0.0
    Year:   3032.7
Beyond the Stratosphere

Solar/Lunar Stats

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