Ottawa, Canada 14-Day Forecast
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84°
Sunny right now
Today: high 88°, low 64°
Updated 8 min ago
Ottawa weather for the next 14 days
Friday, August 7
Sunny High 83° Low 64°Precipitation
11%
· 0.0 in
Max wind
7 mph
Humidity
80%
UV index
7 - High
Sunrise / sunset
05:54 AM / 08:22 PM
Saturday, August 8
Sunny High 81° Low 63°Precipitation
76%
· 0.23 in
Max wind
9 mph
Humidity
85%
UV index
5 - Moderate
Sunrise / sunset
05:55 AM / 08:21 PM
Sunday, August 9
Sunny High 81° Low 60°Precipitation
8%
· 0.0 in
Max wind
11 mph
Humidity
75%
UV index
6 - High
Sunrise / sunset
05:56 AM / 08:20 PM
Monday, August 10
Partly Cloudy High 85° Low 61°Precipitation
73%
· 0.34 in
Max wind
12 mph
Humidity
75%
UV index
7 - High
Sunrise / sunset
05:57 AM / 08:18 PM
Tuesday, August 11
Sunny High 80° Low 63°Precipitation
36%
· 0.02 in
Max wind
7 mph
Humidity
74%
UV index
7 - High
Sunrise / sunset
05:59 AM / 08:17 PM
Wednesday, August 12
Sunny High 79° Low 62°Precipitation
5%
· 0.0 in
Max wind
8 mph
Humidity
62%
UV index
7 - High
Sunrise / sunset
06:00 AM / 08:15 PM
Thursday, August 13
Partly Cloudy High 77° Low 58°Precipitation
58%
· 0.07 in
Max wind
12 mph
Humidity
78%
UV index
6 - High
Sunrise / sunset
06:01 AM / 08:13 PM
Friday, August 14
Sunny High 72° Low 49°Precipitation
5%
· 0.0 in
Max wind
9 mph
Humidity
66%
UV index
6 - High
Sunrise / sunset
06:02 AM / 08:12 PM
Saturday, August 15
Sunny High 77° Low 52°Precipitation
5%
· 0.0 in
Max wind
10 mph
Humidity
63%
UV index
7 - High
Sunrise / sunset
06:03 AM / 08:10 PM
Sunday, August 16
Partly Cloudy High 73° Low 59°Precipitation
17%
· 0.0 in
Max wind
6 mph
Humidity
63%
UV index
6 - High
Sunrise / sunset
06:05 AM / 08:09 PM
Monday, August 17
Partly Cloudy High 63° Low 55°Precipitation
49%
· 0.03 in
Max wind
7 mph
Humidity
77%
UV index
5 - Moderate
Sunrise / sunset
06:06 AM / 08:07 PM
Tuesday, August 18
Sunny High 73° Low 53°Precipitation
4%
· 0.0 in
Max wind
6 mph
Humidity
56%
UV index
6 - High
Sunrise / sunset
06:07 AM / 08:05 PM
Wednesday, August 19
Sunny High 76° Low 51°Precipitation
3%
· 0.0 in
Max wind
7 mph
Humidity
53%
UV index
6 - High
Sunrise / sunset
06:08 AM / 08:04 PM
Ottawa 14-day outlook: the story
The warmest day of Ottawa's 14-day outlook is Thursday, August 6 with a high near 88°F (31°C); the coolest night comes Friday, August 14, dipping to 49°F (10°C). The trend points cooler: week two runs about 9°F below week one. Highs over the next two weeks average 82°F (28°C), about 5°F (3°C) above the typical August high of 77°F (25°C).
Precipitation is most likely on Saturday 8, Monday 10, Thursday 13; the wettest day looks like Monday, August 10 with about 0.34 in (8.5 mm) expected. For the weekend, expect Saturday 81°F (27°C) and sunny / Sunday 81°F (27°C) and sunny.
For typical conditions month by month, see the Ottawa climate & average temperatures guide.
Ottawa forecast questions
Will it rain in Ottawa this week?
The forecast currently shows meaningful precipitation chances on 3 of the next 14 days, peaking around Monday, August 10.
What will be the warmest day in Ottawa over the next 14 days?
Thursday, August 6, with a forecast high near 88°F (31°C).
How accurate is a 14-day forecast for Ottawa?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Ottawa by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 25° | 8° | 11 | 3.0 in | 4.9 h/day | 76% |
| February | 28° | 9° | 12 | 2.9 in | 6.1 h/day | 73% |
| March | 37° | 20° | 11 | 3.0 in | 7.5 h/day | 70% |
| April | 51° | 32° | 13 | 4.2 in | 8.2 h/day | 66% |
| May | 67° | 46° | 11 | 3.4 in | 10.4 h/day | 66% |
| June | 74° | 56° | 13 | 4.5 in | 10.8 h/day | 71% |
| July | 80° | 63° | 13 | 4.2 in | 12.0 h/day | 72% |
| August | 77° | 62° | 13 | 4.8 in | 10.8 h/day | 76% |
| September | 71° | 55° | 9 | 3.0 in | 9.5 h/day | 76% |
| October | 57° | 44° | 12 | 4.1 in | 6.4 h/day | 77% |
| November | 43° | 31° | 12 | 3.0 in | 5.0 h/day | 76% |
| December | 32° | 20° | 12 | 3.5 in | 3.8 h/day | 78% |
14-day forecasts nearby