Idaho Falls (ID)
January
Weather in Idaho Falls, Idaho for January 2026
Your guide to Idaho Falls weather in January - trends and predictions
Idaho Falls typically experiences moderate snowfall in January, with an average of 7 snowy days.
In general, the average temperature in Idaho Falls at the beginning of January is -0.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of -4.6 °F by the end of January.
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Snow Forecast ❄️
Temperatures
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21
Dry days
3
Rainy days
7
Snow days
-4°/-13°
Temperatures
10 km/h
Avg max wind
90 %
Avg humidity
Idaho Falls Weather January
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Temperatures trend during January in Idaho Falls
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January weather in Idaho Falls day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Jan. 1 |  Patchy moderate snow | -1° /-9° | 2.8 mm | 0.4 cm | |
| Jan. 2 |  Light freezing rain | 0° /-3° | 2.1 mm | 0.8 cm | |
| Jan. 3 |  Moderate snow | 1° /-1° | 6.3 mm | 4.6 cm | |
| Jan. 4 |  Moderate or heavy snow showers | 1° /-3° | 5.1 mm | 3 cm | |
| Jan. 5 | Light freezing rain | -1° /-3° | 2.6 mm | 0.8 cm | |
| Jan. 6 | Light freezing rain | -1° /-9° | 1.4 mm | 0.9 cm | |
| Jan. 7 |  Sunny | -4° /-14° | 0 mm | 0 cm | |
| Jan. 8 | Light freezing rain | -8° /-18° | 0.2 mm | 0 cm | |
| Jan. 9 |  Overcast | -4° /-8° | 0 mm | 0 cm | |
| Jan. 10 | Overcast | -3° /-9° | 1.3 mm | 0.5 cm | |
| Jan. 11 | Overcast | -2° /-8° | 0.2 mm | 0 cm | |
| Jan. 12 | Overcast | -5° /-8° | 0 mm | 0 cm | |
| Jan. 13 | Light freezing rain | -4° /-7° | 0.2 mm | 0 cm | |
| Jan. 14 |  Cloudy | -4° /-8° | 0 mm | 0 cm | |
| Jan. 15 | Overcast | -3° /-10° | 0 mm | 0 cm | |
| Jan. 16 | Overcast | -3° /-11° | 0 mm | 0 cm | |
| Jan. 17 | Light freezing rain | -2° /-11° | 0.6 mm | 0 cm | |
| Jan. 18 | Cloudy | -7° /-16° | 0 mm | 0 cm | |
| Jan. 19 | Light freezing rain | -7° /-19° | 1.1 mm | 0 cm | |
| Jan. 20 | Sunny | -13° /-25° | 0 mm | 0 cm | |
| Jan. 21 | Overcast | -9° /-24° | 0 mm | 0 cm | |
| Jan. 22 |  Partly cloudy | -7° /-22° | 0 mm | 0 cm | |
| Jan. 23 | Overcast | -8° /-16° | 0 mm | 0 cm | |
| Jan. 24 | Light freezing rain | -5° /-13° | 0.3 mm | 0 cm | |
| Jan. 25 | Sunny | -4° /-17° | 0 mm | 0 cm | |
| Jan. 26 | Sunny | -5° /-22° | 0 mm | 0 cm | |
| Jan. 27 | Cloudy | -5° /-22° | 0 mm | 0 cm | |
| Jan. 28 | Overcast | -7° /-15° | 0 mm | 0 cm | |
| Jan. 29 | Overcast | -6° /-14° | 0 mm | 0 cm | |
| Jan. 30 |  Freezing fog | -5° /-17° | 0 mm | 0 cm | |
| Jan. 31 |  Mist | 0° /-9° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Idaho Falls in January 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 Idaho Falls forecast closer to your planned date for the most up-to-date weather information.
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Idaho Falls in January - FAQ
What are the expected maximum and minimum temperatures in Idaho Falls during January?
Brace for cold days with temperatures not exceeding -4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Idaho Falls during January?
In January, Idaho Falls can expect light to moderate rainfall, totaling 24.3 mm across approximately 3 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Idaho Falls in January 2026?
Idaho Falls experiences an average snowfall of 10.9 cm during January, occurring over 7 days.
What are the typical wind conditions in Idaho Falls during January?
The average wind speed in Idaho Falls during January is 10 km/h, suggesting breezy to windy conditions, depending on your activities.
Idaho Falls snow forecast January 2026
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January rainfall patterns in Idaho Falls
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Where is Idaho Falls?Get accurate weather forecasts for Idaho Falls, located at latitude 43.467 and longitude -112.034. Stay updated with localized weather information tailored for Idaho Falls.
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