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  

Date07/1507/16
Hour (EDT)230001020304050607080910111213141516171819202122
Temperature (°F)737271717171707071757880818283838383838382807977
Dewpoint (°F)646566666767676768707172727272727272727272737272
Heat Index (°F)757984868789888889898886847977
Surface Wind (mph)533333333356688999998653
Wind DirSSESSESSESSESSESSESSESSESSSESSSSSSSSSSSSSESS
Gust
Sky Cover (%)101215193838394848515153535055554744374445273826
Precipitation Potential (%)111368101010192325313131292929292929303030
Relative Humidity (%)737982868787909191857876757270707069697074788185
Rain------------------SChcSChcChcChcChcChcChcChcChcChcChcChcChcChcChc
Thunder------------------------ChcChcChcChcChcChcChcChcChcChcChcChc

Date07/17
Hour (EDT)230001020304050607080910111213141516171819202122
Temperature (°F)777676757575757575767778798081828282807875727068
Dewpoint (°F)727373737373737373737372727272717171706867656362
Heat Index (°F)777676757575757575767778838486868786847875
Surface Wind (mph)335556667789101111111111111010988
Wind DirSSSWSSWSSWSWSWSWSWWSWWSWWSWWWWWWWNWNWNWNNWNNNN
Gust18181820202018
Sky Cover (%)303331283338434852575858595959595755536067747270
Precipitation Potential (%)303030303030303030474747474747656565656565171717
Relative Humidity (%)868991949494949392908782787572717070717376798080
RainChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcLklyLklyLklyLklyLklyLklySChcSChcSChc
ThunderSChcSChcSChcSChcSChcSChc------------SChcSChcSChcChcChcChcSChcSChcSChc------

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