Point Forecast: Harsens Island MI
 42.58N 82.57W (Elev. 577 ft)
Last Update: 5:13 pm EDT Jul 15, 2025
Tabular Forecast
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Weather ElementsFire WeatherProbabilistic Forecasts (Experimental)
Description | Survey
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)

Rain
Thunder
Fog
Mixing Height  
Trans. Wind  
20ft Wind  
Vent Rate (x1000 mph-ft)
Red Flag Threat Index
Quantitative Precipitation     info
    0.100.250.501.00
Snowfall     info
    0.1in1in3in6in12in

48-Hour Period Starting:       Back 2 Days  

Date07/16
Hour (EDT)000102030405060708091011121314151617181920212223
Temperature (°F)727171717170707175788081828383838383838280797777
Dewpoint (°F)656666676767676870717272727272727272727273727272
Heat Index (°F)75798486878988888989888684797777
Surface Wind (mph)333333333566889999986533
Wind DirSSESSESSESSESSESSESSESSSESSSSSSSSSSSSSESSS
Gust
Sky Cover (%)121519383839484851515353505555474437444527382630
Precipitation Potential (%)1136810101019232531313129292929292930303030
Relative Humidity (%)798286878790919185787675727070706969707478818586
Rain----------------SChcSChcChcChcChcChcChcChcChcChcChcChcChcChcChcChc
Thunder----------------------ChcChcChcChcChcChcChcChcChcChcChcChcSChc

Date07/17
Hour (EDT)000102030405060708091011121314151617181920212223
Temperature (°F)767675757575757576777879808182828280787572706866
Dewpoint (°F)737373737373737373737272727271717170686765636260
Heat Index (°F)7676757575757575767778838486868786847875
Surface Wind (mph)355566677891011111111111110109887
Wind DirSSWSSWSSWSWSWSWSWWSWWSWWSWWWWWWWNWNWNWNNWNNNNN
Gust18181820202018
Sky Cover (%)333128333843485257585859595959575553606774727068
Precipitation Potential (%)303030303030303047474747474765656565656517171717
Relative Humidity (%)899194949494939290878278757271707071737679808080
RainChcChcChcChcChcChcChcChcChcChcChcChcChcChcLklyLklyLklyLklyLklyLklySChcSChcSChcSChc
ThunderSChcSChcSChcSChcSChc------------SChcSChcSChcChcChcChcSChcSChcSChc--------

Additional Forecasts and Information
International System of UnitsForecast Discussion
7-Day ForecastHourly Weather Graph
Hazardous WeatherRegional Temp/Precip