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Twin Falls (ID)
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United States weather

Weather in Twin Falls, Idaho for December 2026

Your guide to Twin Falls weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 2 snowy days, Twin Falls usually enjoys a light touch of snow in December.

    • Temperatures

  • In general, the average temperature in Twin Falls at the beginning of December is 5.1 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 5.4 °F by the end of December.

    • Rain 🌧️

  • Twin Falls experiences moderate rainfall in December, with an average of 8 rainy days and a total precipitation of 76.7 mm.

    • More

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

Average dry days
21
Dry days
Average rainy days
8
Rainy days
Average snowy days
2
Snow days
Average temperatures
7°/-1°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Twin Falls Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Freezing fog
4°
2
Moderate snow
5°
3
Mist
0°
4
Mist
4°
5
Overcast
10°
6
Moderate or heavy sleet
7°
7
Overcast
6°
8
Overcast
9°
9
Overcast
10°
10
Overcast
14°
11
Partly cloudy
11°
12
Sunny
9°
13
Overcast
9°
14
Cloudy
10°
15
Overcast
8°
16
Thundery outbreaks possible
12°
17
Moderate or heavy rain with thunder
10°
18
Moderate or heavy rain shower
3°
19
Overcast
8°
20
Freezing fog
1°
21
Fog
8°
22
Overcast
9°
23
Overcast
11°
24
Overcast
10°
25
Mist
10°
26
Thundery outbreaks possible
9°
27
Overcast
3°
28
Sunny
0°
29
Sunny
4°
30
Sunny
6°
31
Overcast
6°

Temperatures trend during December in Twin Falls

See the weather trend as well as the moving average line

December weather in Twin Falls day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Freezing fog
Freezing fog
 4° /-5° 0 mm 0 cm
Dec. 2 Moderate snow
Moderate snow
 5° /0° 8.8 mm 6.4 cm
Dec. 3 Mist
Mist
 0° /-3° 0 mm 0 cm
Dec. 4 Mist
Mist
 4° /-6° 0 mm 0 cm
Dec. 5 Overcast
Overcast
 10° /1° 0.8 mm 0 cm
Dec. 6 Moderate or heavy sleet
Moderate or heavy sleet
 7° /0° 11.2 mm 0 cm
Dec. 7 Overcast
Overcast
 6° /0° 0 mm 0 cm
Dec. 8 Overcast
Overcast
 9° /4° 0 mm 0 cm
Dec. 9 Overcast
Overcast
 10° /1° 0 mm 0 cm
Dec. 10 Overcast
Overcast
 14° /4° 0 mm 0 cm
Dec. 11 Partly cloudy
Partly cloudy
 11° /0° 0 mm 0 cm
Dec. 12 Sunny
Sunny
 9° /0° 0 mm 0 cm
Dec. 13 Overcast
Overcast
 9° /-1° 0 mm 0 cm
Dec. 14 Cloudy
Cloudy
 10° /-3° 0 mm 0 cm
Dec. 15 Overcast
Overcast
 8° /-2° 0 mm 0 cm
Dec. 16 Thundery outbreaks possible
Thundery outbreaks possible
 12° /4° 0 mm 0 cm
Dec. 17 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 10° /0° 22 mm 0 cm
Dec. 18 Moderate or heavy rain shower
Moderate or heavy rain shower
 3° /-2° 21.9 mm 0 cm
Dec. 19 Overcast
Overcast
 8° /2° 1.5 mm 0 cm
Dec. 20 Freezing fog
Freezing fog
 1° /-2° 1.9 mm 1.4 cm
Dec. 21 Fog
Fog
 8° /2° 1.3 mm 0 cm
Dec. 22 Overcast
Overcast
 9° /5° 0 mm 0 cm
Dec. 23 Overcast
Overcast
 11° /3° 0 mm 0 cm
Dec. 24 Overcast
Overcast
 10° /2° 1.3 mm 0 cm
Dec. 25 Mist
Mist
 10° /3° 0 mm 0 cm
Dec. 26 Thundery outbreaks possible
Thundery outbreaks possible
 9° /4° 6 mm 0 cm
Dec. 27 Overcast
Overcast
 3° /-4° 0 mm 0 cm
Dec. 28 Sunny
Sunny
 0° /-7° 0 mm 0 cm
Dec. 29 Sunny
Sunny
 4° /-7° 0 mm 0 cm
Dec. 30 Sunny
Sunny
 6° /-4° 0 mm 0 cm
Dec. 31 Overcast
Overcast
 6° /-4° 0 mm 0 cm
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Important Notice
Our weather forecast for Twin Falls in December 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 Twin Falls forecast closer to your planned date for the most up-to-date weather information.
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Twin Falls in December - FAQ

What are the expected maximum and minimum temperatures in Twin Falls during December?

Prepare for cooler days with highs just around 7° and colder nights, dipping below -1°.

How much rainfall should be expected in Twin Falls during December?

Moderate rainfall is anticipated in Twin Falls during December, with a total of 76.7 mm spread over approximately 8 days. Considering plans for rainy days is advisable.

Will it snow in Twin Falls in December 2026?

Twin Falls experiences an average snowfall of 7.7 cm during December, occurring over 2 days.

What are the typical wind conditions in Twin Falls during December?

The average wind speed in Twin Falls during December is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

Twin Falls snow forecast December 2026

Track daily snowfall levels and discover Twin Falls’s snowy potential this December ❄️
On average, Twin Falls sees 2 snowy days during December, with approximately 7.7 cm of total snowfall.

December rainfall patterns in Twin Falls

Explore the daily rainfall trends and prepare for Twin Fallss December weather 💧
Typically, Twin Falls has 8 rainy days in December with a total of 76.7 mm of rainfall.

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Location coordinates Where is Twin Falls?

Get accurate weather forecasts for Twin Falls, located at latitude 42.563 and longitude -114.461. Stay updated with localized weather information tailored for Twin Falls.

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