Env. Canada, the European and the American model agree on a high near 15° in The Blue Mountains today. Tomorrow: cloudy, around 19°, with a 2% chance of rain.
The Blue Mountains swings 32°C across the year, from 23°C highs in July to -9°C lows in February, and December is usually the wettest month in a year that brings about 981 mm of precipitation.
Warmest month
July
23°C average high
Coldest month
February
-9°C average low
Wettest month
December
981 mm a year
Below freezing
4 months
January, February, March and December
Comfortable
4 months
May, June, July and August
Residents
9,390
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The weather map: all three models at once
Env. Canada, European, American side by side around The Blue Mountains and nearby towns.Live rain radar →
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The Blue Mountains hourly forecast: next 14 hours
consensus of the three models
Rain in the next 24 hours, model by model
each model's own hourly precipitation, side by side
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The Blue Mountains 10-day forecast, out to 14 days
where the models agree, and where they split
Today
Clear
15°3°
models agree
Tomorrow
Cloudy
19°6°
models agree
Mon
Cloudy
14°7°
models agree
Tue
Cloudy
8°3°
±3°
Wed
Cloudy
15°4°
±5°
Thu
Light drizzle
18°9°
models agree
Fri
Clear
15°7°
models agree
Sat
Cloudy
19°9°
±6°
Sun
Drizzle
19°12°
±3°
Mon
Heavy drizzle
16°6°
±3°
Tue
Light drizzle
9°3°
models agree
Wed
Heavy drizzle
6°2°
models agree
Thu
Light drizzle
9°3°
±3°
Fri
Cloudy
10°2°
±3°
The Blue Mountains, Ontario is at its warmest in Jul (average highs near 23°C) and coldest in Feb (lows around -9°C), with roughly 981 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for The Blue Mountains right now, and see exactly where they disagree.
average daytime high and overnight low across a typical year (1991-2020)
Jan
-3°
-8°
Feb
-1°
-9°
Mar
2°
-5°
Apr
10°
1°
May
17°
7°
Jun
21°
13°
Jul
23°
16°
Aug
23°
16°
Sep
19°
12°
Oct
13°
7°
Nov
6°
1°
Dec
0°
-4°
Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.
How The Blue Mountains' weather has changed since 1995
30 years of daily data, 1995-2024, shown as change
+1.0°C
Around The Blue Mountains, 2015-2024 averaged 1.0°C warmer than 1995-2004. 5 of the 10 warmest years since 1995 fall in the last ten, and the warmest was 2024.
1995each stripe is one year2024
cooler than averagearound averagewarmer than average
Days above 25°C
15 more days a year
2015-2024 against 1995-2004. Within the normal year-to-year swing
Frost nights
7 fewer nights a year
2015-2024 against 1995-2004, below 0°C. Within the normal year-to-year swing
Average wind
no clear change
2015-2024 against 1995-2004. Within the normal year-to-year swing
Bars: each year against the area's 30-year average. Dashed lines: the average of the first and the last ten years.
See the numbers year by year
Year
Temp vs average
Days >25°C vs avg
Frost nights vs avg
Wind vs avg
1995
−0.5°C
+10
+15
+2%
1996
−2.1°C
−25
+31
−5%
1997
−1.4°C
−22
+19
−1%
1998
+1.6°C
+9
−25
−1%
1999
+0.4°C
+14
−7
+4%
2000
−0.5°C
−30
−8
+0%
2001
±0.0°C
−3
−6
−1%
2002
−0.1°C
+6
+24
+4%
2003
−1.6°C
−14
+11
−1%
2004
−0.6°C
−18
−4
+0%
2005
+0.4°C
+24
+2
−3%
2006
+0.5°C
−8
−13
+0%
2007
+0.1°C
+9
−1
+2%
2008
−0.6°C
−16
+10
+2%
2009
−0.7°C
−22
−8
−3%
2010
+0.7°C
+7
−14
−1%
2011
±0.0°C
+2
+1
−3%
2012
+1.5°C
+16
−13
−1%
2013
−0.3°C
−5
+11
+2%
2014
−1.8°C
−21
+11
+0%
2015
−0.5°C
+2
−11
+0%
2016
+1.0°C
+24
−6
+0%
2017
+0.3°C
−14
−10
+2%
2018
±0.0°C
+26
+21
+0%
2019
−0.9°C
−6
+7
+4%
2020
+0.9°C
+16
+9
+2%
2021
+1.3°C
+13
−12
−1%
2022
+0.1°C
+8
+6
+0%
2023
+1.1°C
−6
−3
−5%
2024
+2.1°C
+21
−22
−1%
Source: NASA POWER daily data from the MERRA-2 reanalysis, 1995-2024. Each value describes a grid square of about 50 km around The Blue Mountains, not a weather station, and a square that takes in sea or a large lake runs milder than the city itself. That is why this section shows change against the square's own 30-year average rather than counts you could compare with a local station. Rain and snow are left out because their long-term record in this dataset is not consistent over time. "Within the normal year-to-year swing" means the change is smaller than the usual differences between single years.
Which forecast is most accurate in The Blue Mountains?
CheckWeather Score, graded against the weather that actually happened
Provider
CheckWeather-score
Temp
Wind
Rain
Run by
European ★ Best
92
/100rank #1
87±0.7°C
96±2.0 km/h
9597% hit
ECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
EC
Env. Canada
82
/100rank #2
81±1.0°C
94±3.0 km/h
7687% hit
Environment and Climate Change CanadaDorval, Québec, Canada
American
81
/100rank #3
87±0.7°C
93±3.5 km/h
6581% hit
NOAA / NCEP (United States)College Park, Maryland, USA
The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in Canada? Give each 1 to 5 stars.
Env. CanadaGEM model
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AmericanNOAA GFS
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.
Where the models disagree
temperature and rain, judged separately
Day
Temperature
Rain
Today
±1°14° to 16°
models agree0% to 0% chance
Tomorrow
±1°18° to 19°
±2%0% to 2% chance
Mon
±2°13° to 15°
±16%0% to 16% chance
Tue
±3°7° to 10°
±5%0% to 5% chance
Wed
±5°13° to 18°
±7%5% to 12% chance
The models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.
Sunrise and sunset in The Blue Mountains
today, local time
Sunrise
07:48
Sunset
18:22
Daylight
10h 34m
Common questions
What's the weather in The Blue Mountains today?
Saturday, October 24: Env. Canada, the European and the American model agree on a high near 15° in The Blue Mountains today. Tomorrow: cloudy, around 19°, with a 2% chance of rain. The forecast on this page refreshes live.
Will it rain in The Blue Mountains today or tomorrow?
Rain looks unlikely in The Blue Mountains on Sunday, October 25: no model gives more than 2% (Env. Canada 0%, European 2%, American 1%). On Saturday, October 24 the highest chance of rain from any model is 0%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for The Blue Mountains?
Over the last 30 days, the European model has been the most accurate for The Blue Mountains (CheckWeather Score 92/100), ahead of the Env. Canada at 82. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in The Blue Mountains?
July is typically the warmest month in The Blue Mountains, with average highs around 23°C.
How cold does The Blue Mountains get?
The coldest month in The Blue Mountains is February, when overnight lows average about -9°C.
How much rain does The Blue Mountains get?
The Blue Mountains sees roughly 981 mm of precipitation a year, with December usually the wettest month.
Is The Blue Mountains getting warmer?
Yes. In NASA's reanalysis for the area around The Blue Mountains, 2015-2024 averaged 1.0°C warmer than 1995-2004.
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