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Ottawa weather
Current conditions and a 14-day forecast for Ottawa, United States. Looking for typical seasonal weather instead? See the historical climate averages.
Now
30°C
Clear sky · feels 36°C
Humidity
67%
relative humidity
Wind
11 km/h
10m wind speed
Chance of rain
1%
today
Next 24 hours in Ottawa
| Time | Conditions | Temp | Rain chance |
|---|---|---|---|
| 12pm | Clear sky | 30°C | 0% |
| 1pm | Clear sky | 31°C | 0% |
| 2pm | Clear sky | 32°C | 0% |
| 3pm | Clear sky | 33°C | 0% |
| 4pm | Clear sky | 33°C | 1% |
| 5pm | Clear sky | 33°C | 1% |
| 6pm | Clear sky | 33°C | 1% |
| 7pm | Overcast | 32°C | 1% |
| 8pm | Clear sky | 30°C | 1% |
| 9pm | Clear sky | 28°C | 1% |
| 10pm | Clear sky | 27°C | 1% |
| 11pm | Clear sky | 26°C | 0% |
| 12am | Clear sky | 25°C | 0% |
| 1am | Clear sky | 24°C | 0% |
| 2am | Clear sky | 24°C | 0% |
| 3am | Mainly clear | 23°C | 0% |
| 4am | Overcast | 22°C | 0% |
| 5am | Overcast | 21°C | 0% |
| 6am | Overcast | 21°C | 0% |
| 7am | Overcast | 21°C | 0% |
| 8am | Overcast | 22°C | 0% |
| 9am | Overcast | 25°C | 0% |
| 10am | Overcast | 27°C | 0% |
| 11am | Overcast | 29°C | 0% |
14-day forecast for Ottawa
| Day | Conditions | High / Low | Rain chance |
|---|---|---|---|
| Today | Overcast | 33° / 21° | 1% |
| Thu, Jul 16 | Overcast | 33° / 21° | 1% |
| Fri, Jul 17 | Thunderstorm | 26° / 21° | 52% |
| Sat, Jul 18 | Thunderstorm with hail | 31° / 21° | 65% |
| Sun, Jul 19 | Partly cloudy | 25° / 15° | 57% |
| Mon, Jul 20 | Thunderstorm with hail | 28° / 17° | 36% |
| Tue, Jul 21 | Thunderstorm | 24° / 15° | 36% |
| Wed, Jul 22 | Overcast | 24° / 13° | 12% |
| Thu, Jul 23 | Light drizzle | 27° / 15° | 6% |
| Fri, Jul 24 | Thunderstorm with hail | 29° / 19° | 10% |
| Sat, Jul 25 | Overcast | 20° / 11° | 12% |
| Sun, Jul 26 | Overcast | 22° / 9° | 26% |
| Mon, Jul 27 | Overcast | 23° / 13° | 32% |
| Tue, Jul 28 | Overcast | 26° / 14° | 26% |
Want more sun and moon detail for Ottawa? Use the sun calculator or moon calculator and search for Ottawa. For a live look at any other city, try the interactive weather tool.
Frequently asked questions
What's the weather like in Ottawa today?
Current conditions and today's forecast for Ottawa, United States are shown above, refreshed regularly through the day.
How accurate is a 14-day forecast?
A forecast is most reliable for the next 3-5 days. Beyond that, temperature and precipitation chances further out are a general trend rather than an exact prediction.
What is Ottawa's weather usually like?
For long-term averages — typical monthly temperatures and rainfall based on years of historical data — see Ottawa's climate page rather than this live forecast.