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United States weather

10 day weather forecast for Umatilla County

Tuesday, November 3rd, 2026, at 03:46 PM
Today
Overcast
12° 3°
Tomorrow
Sunny
14° 2°
Thursday
Patchy rain possible
14° 4°
Friday
Overcast
16° 4°
Saturday
Overcast
20° 7°
Sunday
Overcast
16° 6°
Monday
Overcast
10° 4°
 More Details See
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Umatilla County Weather Pages

Umatilla County weather forecast

The weather forecast for Umatilla County over the next 4 days indicates chilly conditions with temperatures ranging from 12 °C to 16 °C.

Light rain is expected on Thursday, accompanied by a gentle breeze.

On Saturday, expect a change in weather with temperatures reaching 20°C.

Weather today

Umatilla County 14 days weather forecast

This weeks weather in Umatilla County. Click on a date for detailed forecasts
Tue. 3
12°
3°
Overcast
0.1 mm
Wed. 4
14°
2°
Sunny
0 mm
Thu. 5
14°
4°
Patchy rain possible
1.2 mm
Fri. 6
16°
4°
Overcast
0.1 mm
Sat. 7
20°
7°
Overcast
0 mm
Sun. 8
16°
6°
Overcast
0.9 mm
Mon. 9
10°
4°
Overcast
0 mm
Tue. 10
14°
4°
Partly cloudy
0 mm
Wed. 11
14°
7°
Partly cloudy
0 mm
Thu. 12
19°
8°
Overcast
0 mm
Fri. 13
13°
9°
Patchy rain possible
2.1 mm
Sat. 14
12°
8°
Patchy rain possible
0.3 mm
Sun. 15
11°
8°
Light rain
8.6 mm
Mon. 16
8°
6°
Light rain
5.7 mm
Further Ahead
Select a date

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Access Umatilla County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Umatilla County long range weather forecast

30 day weather forecast for Umatilla County
October
December
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Moderate or heavy rain shower
14°
2
Patchy rain possible
13°
3
Overcast
12°
4
Sunny
14°
5
Patchy rain possible
14°
6
Overcast
16°
7
Overcast
20°
8
Overcast
16°
9
Overcast
10°
10
Partly cloudy
14°
11
Partly cloudy
14°
12
Overcast
19°
13
Patchy rain possible
13°
14
Patchy rain possible
12°
15
Light rain
11°
16
Light rain
8°
17
Moderate or heavy rain shower
10°
18
Patchy rain possible
7°
19
Overcast
7°
20
Light rain
9°
21
Patchy rain possible
9°
22
Heavy rain at times
10°
23
Moderate rain
10°
24
Patchy rain possible
8°
25
Patchy rain possible
7°
26
Moderate rain at times
7°
27
Patchy rain possible
8°
28
Heavy rain
6°
29
Mist
3°
30
Light snow
2°
Important Notice
Our Umatilla County long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.

Rain Forecast for the Next 14 Days in Umatilla County

A total of 19 mm is expected over 4 rainy days. The wettest day is Sunday 15, with 8.6 mm. Click a day for details.
Tue. 3
0.1
0.1 mm
22%
Wed. 4
0 mm
6%
Thu. 5
1.2
1.2 mm
57%
Fri. 6
0.1
0.1 mm
17%
Sat. 7
0 mm
7%
Sun. 8
0.9
0.9 mm
43%
Mon. 9
0 mm
14%
Tue. 10
0 mm
10%
Wed. 11
0 mm
7%
Thu. 12
0 mm
9%
Fri. 13
2.1
2.1 mm
57%
Sat. 14
0.3
0.3 mm
23%
Sun. 15
8.6
8.6 mm
80%
Mon. 16
5.7
5.7 mm
86%

Frequently asked questions about the weather in Umatilla County

How warm is it in Umatilla County over the next 14 days?
Over the next two weeks, temperatures in Umatilla County are expected to range from around 2 °C on the coldest nights up to about 20 °C on the warmest days. Use this range to plan what to pack and wear.

Will it rain in Umatilla County in the next two weeks?
Yes - rain is expected on about 4 of the next 14 days in Umatilla County, with roughly 19 mm of rainfall in total. It is worth keeping an umbrella or raincoat handy.

How windy is it in Umatilla County?
Maximum wind speeds in Umatilla County are forecast to reach about 27 km/h at their peak over the next 14 days.

When is the best time to visit Umatilla County?
For a month-by-month look at temperatures and rainfall, see our best time to visit Umatilla County guide.

How accurate is the 14-day forecast for Umatilla County?
Our Umatilla County forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.
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