Multnomah County (Portland)
January
Weather in Multnomah County for January 2026
Your guide to Multnomah County weather in January - trends and predictions
With an average of 3 snowy days, Multnomah County usually enjoys a light touch of snow in January.
In general, the average temperature in Multnomah County at the beginning of January is 7.7 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 8.7 °F by the end of January.
Multnomah County experiences heavy rainfall in January, with over 20 rainy days and an average total precipitation 192.7 mm.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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4
Dry days
24
Rainy days
3
Snow days
7°/2°
Temperatures
12 km/h
Avg max wind
87 %
Avg humidity
Multnomah County Weather January
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  8° | 2  7° | 3  8° | ||||
| 4 7° | 5 8° | 6 9° | 7 7° | 8 8° | 9 9° | 10 7° |
| 11 7° | 12 6° | 13 2° | 14  4° | 15 4° | 16 2° | 17 4° |
| 18 7° | 19 4° | 20  5° | 21 6° | 22 8° | 23 8° | 24 6° |
| 25 8° | 26 8° | 27 9° | 28  10° | 29 10° | 30 8° | 31 8° |
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Temperatures trend during January in Multnomah County
See the weather trend as well as the moving average line
January weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Jan. 1 | Overcast | 8° /2° | 9.2 mm | 0 cm | |
| Jan. 2 | Patchy rain possible | 7° /2° | 12 mm | 0 cm | |
| Jan. 3 | Moderate rain at times | 8° /4° | 12.5 mm | 0 cm | |
| Jan. 4 | Moderate or heavy rain shower | 7° /3° | 4.7 mm | 0 cm | |
| Jan. 5 | Moderate rain at times | 8° /5° | 3 mm | 0 cm | |
| Jan. 6 | Moderate rain at times | 9° /4° | 7.3 mm | 0 cm | |
| Jan. 7 | Moderate rain at times | 7° /3° | 3.2 mm | 0 cm | |
| Jan. 8 | Moderate or heavy rain shower | 8° /3° | 9.7 mm | 0 cm | |
| Jan. 9 | Moderate or heavy rain shower | 9° /3° | 10.2 mm | 0 cm | |
| Jan. 10 | Overcast | 7° /2° | 12.7 mm | 0 cm | |
| Jan. 11 | Moderate or heavy rain shower | 7° /3° | 5.7 mm | 0 cm | |
| Jan. 12 | Moderate or heavy rain shower | 6° /0° | 12.1 mm | 1.8 cm | |
| Jan. 13 | Moderate rain at times | 2° /-3° | 10.2 mm | 6.1 cm | |
| Jan. 14 | Heavy rain at times | 4° /-2° | 2.2 mm | 0.1 cm | |
| Jan. 15 | Heavy rain at times | 4° /-3° | 6.7 mm | 0 cm | |
| Jan. 16 | Moderate rain at times | 2° /-3° | 2.2 mm | 0 cm | |
| Jan. 17 | Patchy rain possible | 4° /-1° | 3.7 mm | 0 cm | |
| Jan. 18 | Moderate or heavy rain shower | 7° /0° | 14.3 mm | 0 cm | |
| Jan. 19 | Patchy rain possible | 4° /-1° | 0.9 mm | 0 cm | |
| Jan. 20 | Partly cloudy | 5° /-1° | 0 mm | 0 cm | |
| Jan. 21 | Moderate rain at times | 6° /0° | 7 mm | 0 cm | |
| Jan. 22 | Patchy rain possible | 8° /1° | 3.1 mm | 0 cm | |
| Jan. 23 | Overcast | 8° /2° | 2.7 mm | 0 cm | |
| Jan. 24 | Overcast | 6° /2° | 3.4 mm | 0 cm | |
| Jan. 25 | Overcast | 8° /2° | 1.3 mm | 0 cm | |
| Jan. 26 | Overcast | 8° /2° | 3.3 mm | 0 cm | |
| Jan. 27 | Patchy rain possible | 9° /3° | 4.1 mm | 0 cm | |
| Jan. 28 | Sunny | 10° /4° | 4.3 mm | 0 cm | |
| Jan. 29 | Sunny | 10° /2° | 0 mm | 0 cm | |
| Jan. 30 | Partly cloudy | 8° /2° | 0.3 mm | 0 cm | |
| Jan. 31 | Overcast | 8° /4° | 4.9 mm | 0 cm | |
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Important Notice
Our weather forecast for Multnomah County 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 Multnomah County forecast closer to your planned date for the most up-to-date weather information.
Multnomah County in January - FAQ
What are the expected maximum and minimum temperatures in Multnomah County during January?
Prepare for cooler days with highs just around 7° and colder nights, dipping below 2°.
How much rainfall should be expected in Multnomah County during January?
Significant rainfall exceeding 192.7 mm is expected in Multnomah County during January, occurring over more than 24 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Multnomah County in January 2026?
Multnomah County experiences an average snowfall of 11.975 cm during January, occurring over 3 days.
What are the typical wind conditions in Multnomah County during January?
The average wind speed in Multnomah County during January is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
Multnomah County snow forecast January 2026
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January rainfall patterns in Multnomah County
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Where is Multnomah County?Get accurate weather forecasts for Multnomah County, located at latitude 45.523 and longitude -122.676. Stay updated with localized weather information tailored for Multnomah County.
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