XGY   Grimsby Mountain, ON
Weather Observed At   43-11  N    79-34  W
 
*** AURBO Watch In Effect ***
  2025-12-1110:15pm Max
Min
  Weather
----



  Temperature
 -7.8 °C
 -2.4 °C
  12:35pm
 -8.4 °C
   3:56am
  Relative Humidity
 69 %
87 %
  6:21am
 61 %
  2:18pm
  Dew Point
 -12.5 °C
 -8.3 °C
   6:21am
 -12.8 °C
   9:45pm
  Wind Velocity
 252 ° at  3.5 G 8.7 kt
 21.7 kt
  12:34am
  Pressure
     29.930 in  ↑
29.932 in
  10:00pm
 29.575 in
  12:00am
  Rainfall Rate
 0.0 mm/h 0.0 mm/h
  ----m
  Snow On Ground 4 cm

  Brightness / Darkness   0 W/m² /  19.43 m/as² 450 W/m²
  12:25pm
   19.55 m/as²   12:00am
  Remarks
  
  RainfallToday
 0.0 mm
 Storm Total
 0.0 mm
  SnowfallToday
0.2 cm
 Storm Total
3.4 cm
  Evapotranspiration Today
 -0.53 mm

  Lake Conditions
   Water Temperature  --- °C
   Waves  ---
OPEN WATER
  Meteor Index
114   Geminids
  Aurora Index
53   Active   - 7 nT   Solar Flux   146  sfu  /   S 0    R 0    G 1   /  MUF   35.0 MHz
  Sunrise 7:42am
   Sunset 4:43pm
  Moonrise N/A
  Moonset N/A
  Moon Phase Last Quarter
Grimsby Mountain Weather Maps
Local Regional Area Synoptic

     
updated H+09 and every 10m updated H+19 and H+49
 updated H+19

Canadian 6-Hour Meteorological Summaries

Grimsby Mountain Charts

 





 




Sky Quality (Darkness) Meter courtesy of  www.Unihedron.com

Wx Map Sat Pix
 IR Sat Pix Radar Lightning

Water
 Ice




WX & SKY
MSC     TWN

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