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Ottawa, ON Hourly Weather

Hourly forecast · Ottawa

The next 48 hours in detail — temperature, feels-like, precipitation chance, wind and UV for every hour. Built on NWS NBM and global model guidance.

48 hours — Ottawa

Today + 10-day →
Time Conditions Temp Precip Wind UV
Wednesday 26/8
09:00
Mostly cloudy 18° 3 mph SW 2
10:00
Sunny 20° 4 mph SW 3
11:00
Mostly cloudy 22° 5 mph S 5
12:00
Mostly cloudy 23° 5 mph S 6
13:00
Sunny 22° 6 mph S 6
14:00
Sunny 22° 6 mph S 6
15:00
Sunny 23° 6 mph S 5
16:00
Sunny 23° 6 mph S 3
17:00
Sunny 23° 6 mph S 2
18:00
Partly cloudy 22° 6 mph SE 1
19:00
Mostly cloudy 21° 6 mph SE 0
20:00
Mostly cloudy 19° 5 mph SE 0
21:00
Sunny 18° 4 mph SE 0
22:00
Sunny 17° 3 mph SE 0
23:00
Partly cloudy 16° 3 mph SE 0
Thursday 27/8
00:00
Sunny 15° 4 mph E 0
01:00
Fog 15° 4 mph E 0
02:00
Fog 15° 3 mph E 0
03:00
Fog 15° 4 mph E 0
04:00
Fog 14° 5 mph E 0
05:00
Fog 14° 5 mph E 0
06:00
Fog 14° 5 mph E 0
07:00
Fog 14° 4 mph E 0
08:00
Mostly cloudy 15° 5 mph E 1
09:00
Mostly cloudy 17° 5 mph SE 2
10:00
Showers 18° 0.03 in 6 mph S 3
11:00
Fog 18° 6 mph S 4
12:00
Showers 19° 0.01 in 6 mph S 4
13:00
Partly cloudy 18° 0.01 in 4 mph S 3
14:00
Showers 20° 0.02 in 9 mph S 2
15:00
Partly cloudy 20° 9 mph S 4
16:00
Rain 21° 0.02 in 6 mph S 3
17:00
Showers 22° 0.02 in 8 mph S 2
18:00
Thunderstorms 22° 0.01 in 7 mph S 1
19:00
Rain 21° 0.02 in 6 mph S 0
20:00
Showers 19° 0.02 in 4 mph SW 0
21:00
Fog 18° 3 mph SW 0
22:00
Fog 18° 2 mph SW 0
23:00
Fog 18° 2 mph SW 0
Friday 28/8
00:00
Fog 17° 2 mph W 0
01:00
Fog 17° 2 mph SW 0
02:00
Fog 17° 3 mph W 0
03:00
Fog 16° 4 mph W 0
04:00
Fog 16° 5 mph NW 0
05:00
Fog 15° 6 mph NW 0
06:00
Fog 15° 6 mph NW 0
07:00
Fog 15° 7 mph NW 0
08:00
Fog 14° 8 mph NW 1
Hourly
How the hourly forecast is made
Hour-by-hour numbers come from NOAA's National Blend of Models combined with ECMWF and GFS guidance, bias-corrected against nearby station observations and refreshed every hour.
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 9:35 AM