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United States weather

Weather in Ada County, Idaho for October 2026

Your guide to Ada County weather in October - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Ada County during October is quite rare, with fewer than 2 snowy days on average.
    According to Ada County snow forecast for October 2026, no snow is expected at the beginning of the month.

    • Temperatures

  • Expect cooler weather in first days of October 2026 in Ada County with the forecast suggesting a temperature of 26 °F, lower than the historical average.

  • In general, the average temperature in Ada County at the beginning of October is 26.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 11.9 °F by the end of October.

    • Rain 🌧️

  • With an average of 4 rainy days, Ada County experiences minimal rainfall in October.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
26
Dry days
Average rainy days
4
Rainy days
Average snowy days
1
Snow days
Average temperatures
17°/6°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
49 %
Avg humidity

Ada County Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
22°
2
Sunny
23°
3
Sunny
29°
4
Sunny
26°
5
Sunny
30°
6
Sunny
32°
7
Sunny
25°
8
Overcast
26°
9
Sunny
25°
10
Overcast
23°
11
Overcast
20°
12
Overcast
17°
13
Sunny
18°
14
Sunny
22°
15
Sunny
20°
16
Moderate rain
16°
17
Light rain
14°
18
Sunny
15°
19
Sunny
14°
20
Sunny
16°
21
Overcast
18°
22
Overcast
17°
23
Overcast
16°
24
Cloudy
13°
25
Overcast
14°
26
Sunny
13°
27
Overcast
14°
28
Overcast
10°
29
Mist
12°
30
Cloudy
10°
31
Light rain shower
10°

Temperatures trend during October in Ada County

See the weather trend as well as the moving average line

October weather in Ada County day by day

Click on a date for more information
September November
Date Weather Temperatures Rain Snow More
Oct. 1 Sunny
Sunny
 22° /11° 0 mm 0 cm
Oct. 2 Sunny
Sunny
 23° /8° 0 mm 0 cm
Oct. 3 Sunny
Sunny
 29° /14° 0 mm 0 cm
Oct. 4 Sunny
Sunny
 26° /13° 0 mm 0 cm
Oct. 5 Sunny
Sunny
 30° /15° 0 mm 0 cm
Oct. 6 Sunny
Sunny
 32° /15° 0 mm 0 cm
Oct. 7 Sunny
Sunny
 25° /9° 0 mm 0 cm
Oct. 8 Overcast
Overcast
 26° /9° 0 mm 0 cm
Oct. 9 Sunny
Sunny
 25° /11° 0 mm 0 cm
Oct. 10 Overcast
Overcast
 23° /11° 0 mm 0 cm
Oct. 11 Overcast
Overcast
 20° /9° 0 mm 0 cm
Oct. 12 Overcast
Overcast
 17° /8° 0 mm 0 cm
Oct. 13 Sunny
Sunny
 18° /9° 0 mm 0 cm
Oct. 14 Sunny
Sunny
 22° /7° 0 mm 0 cm
Oct. 15 Sunny
Sunny
 20° /10° 0 mm 0 cm
Oct. 16 Moderate rain
Moderate rain
 16° /4° 3.7 mm 0 cm
Oct. 17 Light rain
Light rain
 14° /5° 0.9 mm 0 cm
Oct. 18 Sunny
Sunny
 15° /3° 0 mm 0 cm
Oct. 19 Sunny
Sunny
 14° /4° 0 mm 0 cm
Oct. 20 Sunny
Sunny
 16° /4° 0 mm 0 cm
Oct. 21 Overcast
Overcast
 18° /5° 0 mm 0 cm
Oct. 22 Overcast
Overcast
 17° /5° 0 mm 0 cm
Oct. 23 Overcast
Overcast
 16° /4° 0.7 mm 0 cm
Oct. 24 Cloudy
Cloudy
 13° /3° 1 mm 0 cm
Oct. 25 Overcast
Overcast
 14° /3° 3.2 mm 0 cm
Oct. 26 Sunny
Sunny
 13° /5° 0 mm 0 cm
Oct. 27 Overcast
Overcast
 14° /6° 0.2 mm 0 cm
Oct. 28 Overcast
Overcast
 10° /2° 0 mm 0 cm
Oct. 29 Mist
Mist
 12° /0° 0 mm 0 cm
Oct. 30 Cloudy
Cloudy
 10° /1° 0 mm 0 cm
Oct. 31 Light rain shower
Light rain shower
 10° /0° 17 mm 1.4 cm
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Important Notice
Our weather forecast for Ada County in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Ada County forecast closer to your planned date for the most up-to-date weather information.
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Ada County in October - FAQ

What are the expected maximum and minimum temperatures in Ada County during October?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 6°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Ada County during October?
Moderate rainfall is anticipated in Ada County during October, with a total of 54 mm spread over approximately 4 days. Considering plans for rainy days is advisable.

Will it snow in Ada County in October 2026?
Ada County typically sees 1.4 cm of snowfall during October.

What are the typical wind conditions in Ada County during October?
The average wind speed in Ada County during October is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

Ada County snow forecast October 2026

Track daily snowfall levels and discover Ada County’s snowy potential this October ❄️
On average, Ada County sees 1 snowy days during October, with approximately 1.4 cm of total snowfall.

October rainfall patterns in Ada County

Explore the daily rainfall trends and prepare for Ada Countys October weather 💧
Typically, Ada County has 4 rainy days in October with a total of 54 mm of rainfall.

UV exposure in Ada County during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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Location coordinates Where is Ada County?

Get accurate weather forecasts for Ada County, located at latitude 43.614 and longitude -116.203. Stay updated with localized weather information tailored for Ada County.

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