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Fort Simpson, Northwest Territories

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Fort Simpson, Northwest Territories Weather

Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar Monthly Air Quality Health & Activities

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Hourly 10-Day Radar Monthly Air Quality Health & Activities

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Snow and Ice Outlook

Ice

Upcoming

Start

10:00 AM

Wednesday, 11/11

End

12:00 PM

Wednesday, 11/11

Upcoming Snow and Ice

Ice

Upcoming

Start

9:00 AM

Saturday, 11/14

End

5:00 PM

Saturday, 11/14

Ice

Upcoming

Start

9:00 PM

Sunday, 11/15

End

6:00 AM

Monday, 11/16

Live: World Cup 2026 weather updates

Latest Entry

Wildfire smoke impacts World Cup events

Jul 17, 2026

Ice Accumulation

Per Hour

Total

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24-Hour Ice Forecast

See how much snow is predicted to accumulate over the next 24 hours

24-Hour Ice Forecast

Past 24 Hour Snowfall

Estimated Snowfall

Our Past 24 Hour Snowfall interactive map displays how much new snow has accumulated over the last 24 hours. The map defaults to display the 24 Hour aggregate total for any given area, but when the playbar is utilized will display a rolling accumulation total on an hour-by-hour basis, starting from the earliest hour in the playbar timeline. This map updates every hour and is estimated off of radar, observations, and other sensors.

Now

Total snow accumulation

<1 2 4 8 18 > 24in

Temperature and Wind

Temperature Forecast

Hourly temperature and RealFeel forecasts before, during and after snow and ice events at this location. The freezing line on the graph assists in understanding when sub-freezing conditions will exist to create snowy and icy conditions. Please be aware that icy conditions may exist even when temperatures are above freezing.

Temperature

RealFeel

Wind

Northwest Territories Current Temperatures

This interactive map provides live current temperatures in and around your area. Click on any location to view current weather details for that location.

Northwest Territories Current Temperatures

Northwest Territories RealFeel® Temperatures

This interactive map provides live RealFeel® temperatures in and around your area. Click on any location to view current weather details for that location.

Northwest Territories RealFeel® Temperatures

Northwest Territories Wind Flow

This interactive map provides a visual representation of wind speed and direction over the next 24 hours

Northwest Territories Wind Flow

Now

REALFEEL® GUIDE

°F

Extraordinarily Dangerous Heat

133° to 140°

Extraordinary caution advised. Very high danger of dehydration, heat stroke, heat exhaustion and heat cramps.

Stay indoors in air conditioning or a well-ventilated area away from direct sun exposure.

Outdoor activity is dangerous and potentially life-threatening.

Loose fitting, light colored cotton clothing is recommended.

Extremely Dangerous Heat

125° to 132°

Extreme caution advised. High danger of dehydration, heat stroke, heat exhaustion and heat cramps.

Stay indoors in air conditioning or a well-ventilated area away from direct sun exposure.

Most outdoor activity is dangerous and potentially life-threatening.

Loose fitting, light colored cotton clothing is recommended.

Very Dangerous Heat

116° to 124°

Significant caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps.

Stay indoors in air conditioning or a well-ventilated area away from direct sun exposure.

Most outdoor activity is dangerous, especially for older adults, infants, and those with sensitive medical conditions.

Loose fitting, light colored cotton clothing is recommended.

Dangerous Heat

108° to 115°

Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

Stay indoors in air conditioning or a well-ventilated area away from direct sun exposure.

Minimize outdoor activity, especially for older adults, infants, and those with sensitive medical conditions.

Loose fitting, light colored cotton clothing is recommended.

Quite Hot

101° to 107°

Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

Older adults, infants, and those with sensitive medical conditions, should minimize outdoor activity and stay indoors in air conditioning or a well-ventilated area away from direct sun exposure.

Loose fitting, light colored cotton clothing is recommended.

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

Older adults, infants, and those with sensitive medical conditions, should minimize outdoor activity and stay indoors in air conditioning or a well-ventilated area away from direct sun exposure.

Loose fitting, light colored cotton clothing is recommended.

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

Loose fitting, light colored cotton clothing is recommended.

Pleasant

63° to 81°

Most consider this temperature range ideal.

Cool

53° to 62°

Light jacket or sweater may be appropriate.

Chilly

40° to 52°

Jacket or sweater is recommended.

Cold

25° to 39°

Coats and hats are appropriate, consider gloves and a scarf.

Very Cold

10° to 24°

Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.

Quite Cold

-10° to 9°

Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.

Limited outdoor activity recommended. Wear winter clothing that covers as much of the body as possible.

Bitterly Cold

-24° to -11°

Caution advised. Frostbite to exposed skin within 8 minutes. Hypothermia likely without protective clothing.

Outdoor activity can be dangerous and should be limited. Wear thick winter clothing that covers as much of the body as possible.

Dangerous Cold

-43° to -25°

Significant caution advised. Frostbite to exposed skin within 2 minutes. Hypothermia likely without protective clothing.

Outdoor activity can be dangerous and should be limited. Wear thick winter clothing that covers nearly all exposed skin.

Very Dangerous Cold

-69° to -44°

Great caution advised. Frostbite to exposed skin within 1 minute. Hypothermia likely without protective clothing.

Outdoor activity is very dangerous and potentially life threatening. Stay in a heated area or, if outdoor activity is necessary, it should be limited to a few minutes and only if all skin surfaces are covered.

Extremely Dangerous Cold

-90° to -70°

Extreme caution advised. Frostbite to exposed skin within 30 seconds. Hypothermia likely without protective clothing.

Outdoor activity is extremely dangerous and life threatening. Stay in a heated area or, if outdoor activity is necessary, it should be limited to a few minutes and only if all skin surfaces are covered.

Extraordinarily Dangerous Cold

-120° to -91°

Extraordinary caution advised. Frostbite to exposed skin within 20 seconds. Hypothermia likely without protective clothing.

Outdoor activity is extraordinarily dangerous and life threatening. Stay in a heated area.

Risk to Life and Property

Some Moderate High Extreme

Rainfall

1 2 4 > 8 in

39 56 74 96 111 130 > 157 mph

40 60 80 100 120 140 > 160 mph

Storm Surge

1 3 6 10 > 15 ft

Today's Lifestyle Forecast

Snow Day Forecast

Snow Day Forecast

Our Snow Day index provides a prediction on how likely local schools near your weather location are to be closed for the given day, based on the latest weather forecast information.

Find out how likely school facilities may be closed, due to inclement weather.

Fort Simpson, Northwest Territories, Canada

X0E

Closures Tomorrow, 11/11 20%

Closures Thursday, 11/12 0%

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