Weather in Ottawa - 14-day forecast

Detailed weather forecast for Ottawa, Canada: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Ottawa

today🌧️ 31°💧 0.2 mm

Thu🌧️ 25°💧 12.7 mm

Fri🌧️ 25°💧 0.1 mm

Sat🌤️ 25°💧 1.5 mm

Sun☁️ 24°💧 6.6 mm

Mon🌤️ 28°💧 0.2 mm

Tue🌧️ 23°💧 12.3 mm

Wed☁️ 25°💧 2.2 mm

14-day forecast - Ottawa

📅 Ottawa 30 & 45-day weather - long-range outlook

Next 15 days · forecast

26°

around 19° at night · days with rain: 7

Weeks 3-4 · avg for July

26°

around 15° at night · rain chance 0%

Weeks 5-7 · avg for August

25°

around 15° at night · rain chance 0%

The 30 & 45-day outlook for Ottawa: the next 15 days are a numerical forecast updated daily - on average 26° by day and 19° at night. Further out we rely on multi-year climate averages: around 26° in July, and about 25° in August. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Ottawa

Wednesday8 July 2026

🌧️31°light rain

sunrise 05:23 · sunset 20:53 · night 26° · evening 30° · rain 0.23 mm · humidity 68% · wind 4 m/s · clouds 91%

Thursday9 July 2026

🌧️25°moderate rain

sunrise 05:24 · sunset 20:52 · night 18° · evening 20° · rain 12.65 mm · humidity 92% · wind 3 m/s · clouds 100%

Friday10 July 2026

🌧️25°light rain

sunrise 05:24 · sunset 20:52 · night 16° · evening 23° · rain 0.1 mm · humidity 61% · wind 4 m/s · clouds 99%

Saturday11 July 2026

🌤️25°scattered clouds

sunrise 05:25 · sunset 20:51 · night 16° · evening 20° · rain 1.47 mm · humidity 41% · wind 2 m/s · clouds 40%

Sunday12 July 2026

☁️24°broken clouds

sunrise 05:26 · sunset 20:50 · night 19° · evening 21° · rain 6.6 mm · humidity 56% · wind 2 m/s · clouds 77%

Monday13 July 2026

🌤️28°scattered clouds

sunrise 05:27 · sunset 20:50 · night 23° · evening 25° · rain 0.18 mm · humidity 54% · wind 5 m/s · clouds 29%

Tuesday14 July 2026

🌧️23°moderate rain

sunrise 05:28 · sunset 20:49 · night 21° · evening 23° · rain 12.33 mm · humidity 93% · wind 6 m/s · clouds 97%

Wednesday15 July 2026

☁️25°overcast clouds

sunrise 05:29 · sunset 20:48 · night 18° · evening 21° · rain 2.19 mm · humidity 48% · wind 3 m/s · clouds 92%

Thursday16 July 2026

☀️26°clear sky

sunrise 05:30 · sunset 20:48 · night 20° · evening 23° · rain 8.58 mm · humidity 51% · wind 2 m/s · clouds 5%

Friday17 July 2026

🌤️28°scattered clouds

sunrise 05:31 · sunset 20:47 · night 21° · evening 24° · rain 0.57 mm · humidity 51% · wind 3 m/s · clouds 37%

Saturday18 July 2026

🌧️29°light rain

sunrise 05:32 · sunset 20:46 · night 23° · evening 24° · rain 0.66 mm · humidity 54% · wind 5 m/s · clouds 100%

Sunday19 July 2026

🌧️29°light rain

sunrise 05:32 · sunset 20:45 · night 18° · evening 24° · rain 1.05 mm · humidity 52% · wind 5 m/s · clouds 33%

Monday20 July 2026

🌧️23°light rain

sunrise 05:33 · sunset 20:44 · night 19° · evening 20° · rain 0.12 mm · humidity 52% · wind 6 m/s · clouds 30%

Tuesday21 July 2026

🌧️22°light rain

sunrise 05:35 · sunset 20:43 · night 15° · evening 18° · rain 0.3 mm · humidity 49% · wind 4 m/s · clouds 54%

Wednesday22 July 2026

🌧️24°light rain

sunrise 05:36 · sunset 20:42 · night 14° · evening 18° · rain 0.57 mm · humidity 50% · wind 5 m/s · clouds 43%

☀️ UV index in Ottawa - is it safe to sunbathe?

Today the UV index in Ottawa is 7 (high) - unprotected fair skin can burn in about 25 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.

Air quality and smog in Ottawa

Air quality in Ottawa is currently very good. Fine particulate PM2.5: 3.8 µg/m³, PM10: 3.9 µg/m³.

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Vancouver	20.8	23.6	good
Montréal	12	12.5	very good
Québec	11	11.4	very good
Surrey	8	10.1	very good
Toronto	6.2	6.2	very good
Calgary	5	5.4	very good
Edmonton	4.7	5	very good
Ottawa	3.8	3.9	very good
London	3.5	3.5	very good
Victoria	2.7	3.8	very good
Oshawa	2.2	2.2	very good

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-07-07, 21:00).

Ottawa weather through the year

Warmest, driest months on average: April, May, June, July.

🎉 Public holidays in Ottawa - when are the long weekends?

Next long weekend in Ottawa: Labour Day (7 September, Monday) - Saturday–Monday (3 days off).

7 SeptemberMonday

Labour Day

🎈 long weekend

30 SeptemberWednesday

National Day for Truth and Reconciliation

12 OctoberMonday

Thanksgiving

🎈 long weekend

25 DecemberFriday

Christmas Day

🎈 long weekend

1 JanuaryFriday 2027

New Year's Day

🎈 long weekend

26 MarchFriday 2027

Good Friday

🎈 long weekend

24 MayMonday 2027

Victoria Day

🎈 long weekend

1 JulyThursday 2027

Canada Day

🎈 long weekend + bridge day

6 SeptemberMonday 2027

Labour Day

🎈 long weekend

30 SeptemberThursday 2027

National Day for Truth and Reconciliation

🎈 long weekend + bridge day

11 OctoberMonday 2027

Thanksgiving

🎈 long weekend

25 DecemberSaturday 2027

Christmas Day

falls on a weekend

Public holidays (statutory days off) - shops, offices and some attractions may be closed. A "bridge day" is a workday between a holiday and the weekend worth taking as leave.

Nearby places

GatineauMontrealMarkhamToronto

FAQ - Ottawa weather

What is the weather like in Ottawa today?

Today it is about 31° during the day and 26° at night, light rain.

How far ahead can I check the forecast for Ottawa?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.