Boise

Idaho Weather in October

Average temperatures, rainfall, sunshine and the best places to visit in Idaho, the United States of America in October.

Thinking about venturing to Idaho, the United States of America this October and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Idaho in October

Idaho, the United States of America is a region in the United States of America. October in Idaho generally has temperatures that range from cold to pleasant, with precipitation levels ranging from low to moderate.

Temperatures

The average maximum daytime temperatures vary from cold in Wallace at 11°C (52°F) to pleasant in Hagerman at 19°C (66°F). Nighttime temperatures generally drop to 3°C (37°F) in Hagerman and 2°C (36°F) in Wallace.

To explore the conditions in Idaho, the United States of America in more detail, check the map below.

Precipitation

In October, precipitation varies across different areas. From low rainfall in Salmon with an average of 21 mm (0.8 in) to moderate rainfall in Wallace with 89 mm (3.5 in).

Average sunshine

October brings good sunshine to many areas. Boise sees around 238 hours of sunlight, great for visitors looking for bright days.

Explore Idaho by month

Pick a month to see the average temperature, rainfall and sunshine in Idaho — and find the best time to visit. (based on Boise)

Best Places to Visit in Idaho in October

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Idaho.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Idaho

What is the weather like in October for some of the most popular destinations in Idaho, the United States of America?

Temperature range in Idaho (October)

Precipitation variation in Idaho (October)

Boise

In October Boise generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 4°C (39°F) and low monthly rainfall. So on average the conditions are perfect that month.

September
October
November
Max temperature
27°C (81°F)
19°C (66°F)
10°C (50°F)
Min temperature
10°C (50°F)
4°C (39°F)
-1°C (30°F)
Monthly sun hours
303 hours
238 hours
117 hours
Monthly rainfall
13 mm (0.5 in)
28 mm (1.1 in)
34 mm (1.3 in)
Monthly rainy days
5 days
8 days
11 days
Weather conditions

Coeur d'Alene

In October Coeur d'Alene generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 3°C (37°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

September
October
November
Max temperature
23°C (73°F)
15°C (59°F)
7°C (45°F)
Min temperature
8°C (46°F)
3°C (37°F)
-1°C (30°F)
Monthly sun hours
272 hours
192 hours
73 hours
Monthly rainfall
23 mm (0.9 in)
45 mm (1.8 in)
93 mm (3.7 in)
Monthly rainy days
7 days
12 days
17 days
Weather conditions

Idaho Falls

In October Idaho Falls generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 1°C (34°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

September
October
November
Max temperature
24°C (75°F)
16°C (61°F)
7°C (45°F)
Min temperature
6°C (43°F)
1°C (34°F)
-5°C (23°F)
Monthly rainfall
26 mm (1 in)
32 mm (1.3 in)
22 mm (0.9 in)
Monthly rainy days
5 days
7 days
7 days
Weather conditions

Ketchum

In October Ketchum generally has moderate temperatures with maximum daytime temperatures around 13°C (55°F), minimum nighttime temperatures around -1°C (30°F) and moderate monthly snow/rainfall. So on average the conditions are unpleasant that month.

September
October
November
Max temperature
21°C (70°F)
13°C (55°F)
6°C (43°F)
Min temperature
4°C (39°F)
-1°C (30°F)
-7°C (19°F)
Monthly snow/rainfall
31 mm (1.2 in)
46 mm (1.8 in)
45 mm (1.8 in)
Monthly rainy days
6 days
10 days
13 days
Weather conditions

Pocatello

In October Pocatello generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 3°C (37°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

September
October
November
Max temperature
25°C (77°F)
17°C (63°F)
8°C (46°F)
Min temperature
8°C (46°F)
3°C (37°F)
-3°C (27°F)
Monthly rainfall
31 mm (1.2 in)
32 mm (1.3 in)
28 mm (1.1 in)
Monthly rainy days
6 days
7 days
8 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Idaho, in the United States of America.

Popular cities in October

Day & night temperatures, rainfall and average weather in Idaho in October.

City Weather Day temp Night temp Rainfall
Boise 19°C (66°F) 4°C (39°F) 28 mm (1.1 in)
Coeur d'Alene 15°C (59°F) 3°C (37°F) 45 mm (1.8 in)
Idaho Falls 16°C (61°F) 1°C (34°F) 32 mm (1.3 in)
Ketchum 13°C (55°F) -1°C (30°F) 46 mm (1.8 in)
Pocatello 17°C (63°F) 3°C (37°F) 32 mm (1.3 in)
Island Park 12°C (54°F) -3°C (27°F) 49 mm (1.9 in)

Idaho weather in October: frequently asked questions

What is the weather like in Idaho, the United States of America in October?

October in Idaho, the United States of America brings perfect weather. In Boise, daytime temperatures are typically around 19°C (66°F) and nighttime lows hover near 4°C (39°F).

What is the average temperature in Idaho, the United States of America in October?

In Boise, the average daytime high in October is 19°C (66°F), while nighttime temperatures drop to around 4°C (39°F).

Does Idaho, the United States of America get a lot of rain in October?

October is on the drier side in Idaho, the United States of America. Boise averages only about 28 mm (1.1 in), with most days staying dry.

Is October a Good Time to Visit Idaho, the United States of America?

We consider October to be one of the best times to travel to Idaho, the United States of America. Typically, the climate in Boise is perfect. However, the weather conditions may vary depending on your destination.

Generally speaking, May, June, September and October provide perfect weather in Boise. The weather in January, July, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Idaho.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed 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 travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.