Ottawa weather in October (Illinois, United States of America)
What can you expect from the weather in Ottawa during October? Wondering if it's the right time to visit? Browse this page for a comprehensive overview of the weather conditions for that month.
In October, Ottawa generally has moderate temperatures and moderate rainfall. Anticipate daytime temperatures around 18°C, while night temperatures can drop to 6°C.
Ottawa in October usually receives moderate rainfall, averaging around 70 mm for the month. When we look at the climate data from the last 30 years, we can expect around 11 days of rain.
In case you lean more towards enjoying temperate temperatures and rain-free days July and September typically offer the most optimal weather. In contrast, January, February, March, November and December tend to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Ottawa climate page with graphs.
Ottawa, monthly averages in October
Min Temperature
6°C
Max Temperature
18°C
Chance of Rain
36%
Precipitation
70 mm
Rainy days
11 days
Where to go in the United States of America in October
Find out more about the weather in the United States of America in October and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Ottawa in October?
For visitors traveling to Ottawa, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in October.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Ottawa.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
