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 9:15am(EDT) on 5/14/26

 Temperature

Temperature
Current: 54°F
    Rate of Change: 2°F/hr.
    High: 55°F at 12:00am
    Low: 51°F at 6:29am

    Monthly High: 81°F on 5/5/26
    Monthly Low: 38°F on 5/1/26
    Yearly High:   88°F on 4/16/26
    Yearly Low:    3°F on 1/31/26
 

Humidity

Humidity & Related
Relative Humidity: 82.0%
    High: 96.0% at 2:39am
    Low:  81.0% at 9:12am
Dew Point: 49°F
Heat Index: 59°F
    High: 61°F at 12:00am

    Monthly High: 80°F on 5/5/26
    Yearly High:   89°F on 4/16/26
 
Wind Rose Wind & Related (Calm)
Current: NNW at 0.0mph
    High Today: 6.2mph at 9:04am
    Monthly High: 13.8mph on 5/3/26
    Yearly High:   38.8mph on 3/11/26
Wind Chill: 54°F
    Low: 51°F at 6:29am
    Monthly Low: 36°F on 5/3/26
    Yearly Low:     -9°F on 1/24/26
    Wind Run Today: 0 miles
    Wind Run Month: 140 miles
    Wind Run Year:  4670 miles
 
Barometric Pressure Barometric Pressure (Steady)
Current: 29.83in
    Rate of Change: 0.01in/hr
    High: 29.83in at 9:10am
    Low:  29.76in at 3:50am


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

 
Daily/Yearly Rain Precipitation

Today: 0.01in
    Hi Rain Rate:   0.03in/hr at 12:00am
    Current Hour:  0.00in
    Last 24 Hours: 0.33in

This Month:    0.79in
Year-to-Date:  9.88in

 
UV Index UV Index
Current: 0.00
    Today's High: 0.00 at 12:00am
    Monthly High: 0.00 on 5/1/26
    Yearly High:   0.00 on 1/1/26

Solar Radiation

Solar Radiation
Current: 220.0 W/m2
    Today's High: 274.0 W/m2  at 9:00am
    Monthly High: 1127.0W/m2 on 5/3/26
    Yearly High:   1176.0W/m2 on 4/20/26
 
Evapotranspiration Evapotranspiration
Today: 0.00in
    Monthly High:  0.19in on 5/5/26
    Yearly High:     0.19in on 5/5/26
 
Cooling Degree Days Degree Days
Cooling Degrees Days
   Today:  0.0
   Month:  17.4
   Year:    126.5
Heating Degree Days
    Today: 5.1
    Month: 112.8
    Year:   2919.2
Beyond the Stratosphere

Solar/Lunar Stats

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