Ottawa Weather
7°
Clear sky
Feels like 7°
Great
Outdoor comfort right now
It is 7°C and clear sky in Ottawa. Nothing wet on the radar for the next 24 hours. Temperatures climb about 8°C over the next six hours. Tomorrow: light rain, high 16°C.
- Pressure rising steadily 1026 hPa
- 48h+ since rain
- Sharp pressure swing
- Wind 0 km/h NNW
- Humidity 88%
- Cloud 0%
- UV peak 6
- Rain chance 0%
Next 48 hours
Scroll sideways — or pick a day below.
Now
3
6am
7
7am
6
8am
6
9am
5
10am
5
11am
5
12pm
6
1pm
7
2pm
7
3pm
7
4pm
6
5pm
5
6pm
5
7pm
5
8pm
4
9pm
4
10pm
4
11pm
5
12am
Sun
5
1am
6
2am
7
3am
7
4am
7
5am
8
6am
9
7am
9
8am
9
9am
1%
10
10am
1%
11
11am
1%
13
12pm
2%
14
1pm
13%
15
2pm
8%
17
3pm
17%
17
4pm
8%
16
5pm
8%
16
6pm
26%
16
7pm
26%
16
8pm
15%
15
9pm
27%
15
10pm
27%
15
11pm
27%
15
12am
Mon
36%
14
1am
36%
15
2am
53%
16
3am
28%
17
4am
28%
18
Conditions in detail
-
Feels like
7°
About what it looks like
-
Dew point
4°
Dry and pleasant
-
Wind
0 km/h
Gusting 0 km/h from NNW
-
Pressure
1025 hPa
Rising steadily
-
Visibility
20 km
Clear
-
UV index
0
Peaks at 6 today
-
Cloud cover
0%
—
-
Precipitation today
0.0 mm
None expected
Air quality
US AQI
23
Good
- PM2.5 2 µg/m³
- PM10 2 µg/m³
- Ozone 41 µg/m³
- NO₂ 3 µg/m³
Next 14 days
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Live radar
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Best time to…
Scored hour by hour across the next two days.
-
Go for a run
99Sat 5am–4am
Cool, calm and dry
-
Walk the dog
97Sat 5am–4am
Mild, no downpours, no ice
-
Line-dry laundry
97Sat 8am–6pm
Dry air plus a working breeze
-
Stargazing
97Sat 7pm–5am
Clear, dark and calm
-
Ride a bike
92Sat 5am–1am
Wind matters more than temperature
-
Garden work
89Sat 8am–6pm
Mild and dry, sun optional
-
Golden-hour photos
89Sat 5pm–6pm
Scattered cloud catches the light
-
Patio or BBQ
67Sat 11am–7pm
Warm, dry, and not too breezy
Sun & moon
Sunrise
7:03 am
Sunset
6:39 pm
- Day length11h 36m
- Golden hour5:44 pm–6:39 pm
Last quarter
54% illuminated
Full moon in 23 days
Stargazing tonight
Excellent · 80/100
Clearest around 5am at 0% cloud.
Almanac
Historical records for this location are still loading, or unavailable.
Ottawa weather questions, answered
- Will it rain in Ottawa today?
- No — the next 24 hours in Ottawa look dry, with the chance of precipitation peaking at 0%.
- How warm does it get in Ottawa today?
- Ottawa reaches a high of 15°C and drops to 4°C overnight. Right now it is 7°C and feels like 7°C.
- What is the best time to be outside in Ottawa today?
- 4pm looks like the pick — 15°C, clear sky, wind 6 km/h. Outdoor comfort scores 100 out of 100 (perfect).
- What is the weather in Ottawa tomorrow?
- Light rain, with a high of 16°C and a low of 5°C — about the same as today. Chance of precipitation peaks at 27%.
- What time is sunrise and sunset in Ottawa?
- The sun rises at 7:03 am and sets at 6:39 pm, giving 11h 36m of daylight.
About this Ottawa forecast
Updated 2026-10-03 10:13 UTC, and refreshed automatically every few minutes. Forecast data is provided by Visual Crossing; radar frames from RainViewer; the 20-year normals and records from the ERA5 reanalysis archive. No national weather service publishes point alerts here, so only computed watches are shown.
Watches labelled computed are worked out on this site from forecast thresholds and are not official warnings — always defer to your national weather service. Need help reading a number? See the sourced weather guide.
Weather near Ottawa
Forecasts for the closest places we publish.
- Gatineau 6 km
- Kingston 146 km
- Laval 156 km
- Montreal 166 km
- Burlington 222 km
- Peterborough 241 km
- Trois-Rivieres 265 km
- Sherbrooke 297 km