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Weather in Umatilla County, Oregon for January 2026

Your guide to Umatilla County weather in January - trends and predictions

    Official Weather Alert ⚠️

  • Special Weather Statement - See hour by hour.

    • Snow Forecast ❄️

  • With an average of 2 snowy days, Umatilla County usually enjoys a light touch of snow in January.
    According to Umatilla County snow forecast for January 2026, no snow is expected until the end of the month.

    • Temperatures

  • So far, January 2026 in Umatilla County is slightly warmer than the historical average by 0.8 °F.

  • The forecast for the upcoming days in Umatilla County predicts a temperature of 9.4 °F, which is slightly above the historical average.

  • In general, the average temperature in Umatilla County at the beginning of January is 7 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 10.6 °F by the end of January.

    • Rain 🌧️

  • Umatilla County experiences moderate rainfall in January, with an average of 8 rainy days and a total precipitation of 46.5 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
4°/-1°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Umatilla County Weather January

Move between months or click on a day
December
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
5°
2
Heavy rain at times
9°
3
Moderate or heavy rain shower
7°
4
Heavy rain at times
9°
5
Moderate rain at times
8°
6
Patchy rain possible
6°
7
Overcast
5°
8
Overcast
4°
9
Overcast
5°
10
Patchy rain possible
8°
11
Overcast
9°
12
Overcast
9°
13
Partly cloudy
9°
14
Cloudy
4°
15
Overcast
2°
16
Cloudy
6°
17
Light freezing rain
3°
18
Overcast
1°
19
Cloudy
1°
20
Partly cloudy
2°
21
Overcast
3°
22
Sunny
2°
23
Weather Alert Light freezing rain
1°
24
Sunny
3°
25
Partly cloudy
7°
26
Partly cloudy
10°
27
Partly cloudy
11°
28
Patchy rain possible
10°
29
Patchy rain possible
9°
30
Partly cloudy
14°
31
Partly cloudy
13°

Temperatures trend during January in Umatilla County

See the weather trend as well as the moving average line

January weather in Umatilla County day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
Jan. 1 Patchy rain possible
Patchy rain possible
 5° /-1° 1.2 mm 0.3 cm
Jan. 2 Heavy rain at times
Heavy rain at times
 9° /1° 4.2 mm 0 cm
Jan. 3 Moderate or heavy rain shower
Moderate or heavy rain shower
 7° /1° 11.8 mm 0 cm
Jan. 4 Heavy rain at times
Heavy rain at times
 9° /3° 2 mm 0 cm
Jan. 5 Moderate rain at times
Moderate rain at times
 8° /2° 2.2 mm 0 cm
Jan. 6 Patchy rain possible
Patchy rain possible
 6° /0° 0.3 mm 0 cm
Jan. 7 Overcast
Overcast
 5° /1° 0 mm 0 cm
Jan. 8 Overcast
Overcast
 4° /0° 0 mm 0 cm
Jan. 9 Overcast
Overcast
 5° /0° 0 mm 0 cm
Jan. 10 Patchy rain possible
Patchy rain possible
 8° /0° 0.2 mm 0 cm
Jan. 11 Overcast
Overcast
 9° /1° 0 mm 0 cm
Jan. 12 Overcast
Overcast
 9° /1° 0 mm 0 cm
Jan. 13 Partly cloudy
Partly cloudy
 9° /1° 0 mm 0 cm
Jan. 14 Cloudy
Cloudy
 4° /0° 0 mm 0 cm
Jan. 15 Overcast
Overcast
 2° /-1° 0 mm 0 cm
Jan. 16 Cloudy
Cloudy
 6° /-1° 0.2 mm 0 cm
Jan. 17 Light freezing rain
Light freezing rain
 3° /-1° 0.9 mm 0.2 cm
Jan. 18 Overcast
Overcast
 1° /-3° 0 mm 0 cm
Jan. 19 Cloudy
Cloudy
 1° /-2° 0 mm 0 cm
Jan. 20 Partly cloudy
Partly cloudy
 2° /-3° 0 mm 0 cm
Jan. 21 Overcast
Overcast
 3° /-3° 0 mm 0 cm
Jan. 22 Sunny
Sunny
 2° /-2° 0 mm 0 cm
Jan. 23 Light freezing rain
Light freezing rain
 1° /-4° 0.1 mm 0 cm
Jan. 24 Sunny
Sunny
 3° /-5° 0 mm 0 cm
Jan. 25 Partly cloudy
Partly cloudy
 7° /-5° 0 mm 0 cm
Jan. 26 Partly cloudy
Partly cloudy
 10° /-1° 0.1 mm 0 cm
Jan. 27 Partly cloudy
Partly cloudy
 11° /-1° 0 mm 0 cm
Jan. 28 Patchy rain possible
Patchy rain possible
 10° /5° 2.9 mm 0 cm
Jan. 29 Patchy rain possible
Patchy rain possible
 9° /3° 0.7 mm 0 cm
Jan. 30 Partly cloudy
Partly cloudy
 14° /5° 0 mm 0 cm
Jan. 31 Partly cloudy
Partly cloudy
 13° /5° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Umatilla 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 Umatilla County forecast closer to your planned date for the most up-to-date weather information.
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Umatilla County in January - FAQ

What are the expected maximum and minimum temperatures in Umatilla County 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 Umatilla County during January?

In January, Umatilla County can expect light to moderate rainfall, totaling 46.5 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.

Will it snow in Umatilla County in January 2026?

Umatilla County experiences an average snowfall of 1 cm during January, occurring over 2 days.

What are the typical wind conditions in Umatilla County during January?

The average wind speed in Umatilla County during January is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

Umatilla County snow forecast January 2026

Track daily snowfall levels and discover Umatilla County’s snowy potential this January ❄️
On average, Umatilla County sees 2 snowy days during January, with approximately 1 cm of total snowfall.

January rainfall patterns in Umatilla County

Explore the daily rainfall trends and prepare for Umatilla Countys January weather 💧
Typically, Umatilla County has 8 rainy days in January with a total of 46.5 mm of rainfall.
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Pendleton
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Location coordinates Where is Umatilla County?

Get accurate weather forecasts for Umatilla County, located at latitude 45.672 and longitude -118.789. Stay updated with localized weather information tailored for Umatilla County.

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