11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Clear sky
8°
Feels like 6°
Wind↑ WSW 11 km/h
Gusts17 km/h
Humidity 46 %
Evening
Clear sky
3°
Feels like 2°
Wind↑ SW 5 km/h
Humidity 50 %
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Partly cloudy
4°
Feels like 1°
Wind↑ SSE 13 km/h
Gusts23 km/h
Humidity 56 %
Evening
Mainly clear
6°
Feels like 3°
Wind↑ S 21 km/h
Gusts51 km/h
Humidity 64 %
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Mainly clear
8°
Feels like 5°
Wind↑ WSW 14 km/h
Gusts29 km/h
Humidity 51 %
Evening
Partly cloudy
4°
Feels like 2°
Wind↑ NW 7 km/h
Humidity 63 %
14-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Calgary forecast in charts · next 7 days
The week ahead: highs and lows
≈ A week close to the usual temperatures
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Calgary climate: what a normal year looks like
Nights typically freeze from October to April, the coldest averaging −13 °C in January.
From 16 h 33 min of daylight in late June to 7 h 54 min in late December.
The hottest stretch is July, when afternoons average 22 °C; the coldest is January, when nights average −13 °C. Between those two months the average temperature changes by 23 °C.
A normal year brings roughly 550 mm of rain — less than 85% of the towns of 20,000+ people we compared it with.
Forecast highs for the coming week average 5 °C, 6 °C cooler than a normal October (11 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
−3 °C
−13 °C
17 mm
Feb
0 °C
−11 °C
17 mm
Mar
3 °C
−9 °C
26 mm
Apr
9 °C
−2 °C
44 mm
May
16 °C
3 °C
79 mm
Jun
19 °C
7 °C
112 mm
Jul
22 °C
9 °C
68 mm
Aug
22 °C
9 °C
69 mm
Sep
18 °C
5 °C
48 mm
Oct
11 °C
−1 °C
29 mm
Nov
3 °C
−6 °C
24 mm
Dec
−3 °C
−11 °C
18 mm
Whole year
10 °C
−2 °C
550 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 51.05° N, 114.09° W, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.
Air you breathe in Calgary: pollution and pollen
1/6
Good
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.55µg/m³
PM105µg/m³
Copernicus CAMS model, updated several times a day.
Rain radar around Calgary
Rain observed over the last two hours by official weather radars around Calgary, followed by the radar forecast for the next hour where the weather service provides one.
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Rain radarLast two hours, then forecast where available · drag the timeline
Moon over Calgary
Waning gibbous
87 % illuminated · 18.3 days
Rise 20:01 Set 13:27
Fri30/1079%
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Moonrise and moonset in local time (America/Edmonton); phase and lit fraction from a synodic calculation.
Look up a past day in Calgary
Curious about the weather in Calgary on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Calgary weather at a glance
This page gathers everything about the weather in Calgary, Alberta: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “partly cloudy”, it is -4 °C (feels like -4 °C) and the wind blows at 2 km/h.
Expected range today: -9 °C to -2 °C and a dry sky. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.
Calgary weather data for developers
Use the Calgary forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.
