As of 13:57 PDT

Weather in Umtanum, WA

52°Current weather

Umtanum, Sunday, 25 October, 13:57

Overcast. Feels like 49°. High 52°, low 38°.

Pressure30.03 inHg
Wind2.2 mph E
Humidity57%
Visibility6.2 mi
Dew point37°

Monthly outlook for Umtanum, WA: average high 51.7°, average low 36.6°. That is 0.1° below the climate normal for October. Precipitation is expected on 6 days (about 1.0 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 1 November (55.9°), the coolest 30 October (30.9°).

51.7°/36.6°
Average high / low
−0.1°
Below normal
6 / 5
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
25 October – 3 November51.6°53.2°-0.9°
4 November – 13 November52°48.8°+1.8°
14 November – 23 Novemberat normal44.1°—

October records over 66 years

87.8°6 October 2014All-time high
17.6°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Hillside Siding (9 mi).

Mon, 2655° / 40°0.03Light rain
55 °Light rain

Umtanum, Monday, 26 October

Light rain. High 55°, low 40°.

Pressure30.03 inHg
Wind1.5 mph N
Humidity71%
Visibility6.2 mi
Dew point41°
Tue, 2754° / 36°0.11Light rain
54 °Light rain

Umtanum, Tuesday, 27 October

Light rain. High 54°, low 36°.

Pressure29.97 inHg
Wind2.2 mph N
Humidity64%
Visibility6.2 mi
Dew point40°
Wed, 2849° / 34°0.2Rain
49 °Rain

Umtanum, Wednesday, 28 October

Rain. High 49°, low 34°.

Pressure29.97 inHg
Wind0.9 mph SE
Humidity72%
Visibility6.2 mi
Dew point37°
Thu, 2948° / 33°0.06Light rain
48 °Light rain

Umtanum, Thursday, 29 October

Light rain. High 48°, low 33°.

Pressure30.03 inHg
Wind5.5 mph SE
Humidity66%
Visibility6.2 mi
Dew point34°
Fri, 3047° / 31°0.03Light rain
47 °Light rain

Umtanum, Friday, 30 October

Light rain. High 47°, low 31°.

Pressure30.03 inHg
Wind2.8 mph SE
Humidity83%
Visibility—
Dew point35°
Sat, 3150° / 34°0Overcast
50 °Overcast

Umtanum, Saturday, 31 October

Overcast. High 50°, low 34°.

Pressure30.03 inHg
Wind4.9 mph NW
Humidity61%
Visibility—
Dew point31°
Sun, 0156° / 39°0Overcast
56 °Overcast

Umtanum, Sunday, 1 November

Overcast. High 56°, low 39°.

Pressure29.85 inHg
Wind13.2 mph NW
Humidity55%
Visibility—
Dew point34°
Mon, 0253° / 34°0Clear
53 °Clear

Umtanum, Monday, 2 November

Clear. High 53°, low 34°.

Pressure30.09 inHg
Wind9.3 mph NW
Humidity44%
Visibility—
Dew point24°
Tue, 0352° / 39°0Overcast
52 °Overcast

Umtanum, Tuesday, 3 November

Overcast. High 52°, low 39°.

Pressure30.12 inHg
Wind7.7 mph E
Humidity51%
Visibility—
Dew point29°
Wed, 0453° / 37°0.06Light rain
53 °Light rain

Umtanum, Wednesday, 4 November

Light rain. High 53°, low 37°.

Pressure29.88 inHg
Wind10.7 mph E
Humidity46%
Visibility—
Dew point27°
Thu, 0553° / 44°0.37Rain
53 °Rain

Umtanum, Thursday, 5 November

Rain. High 53°, low 44°.

Pressure29.68 inHg
Wind11.1 mph S
Humidity77%
Visibility—
Dew point41°
Fri, 0651° / 40°0Partly cloudy
51 °Partly cloudy

Umtanum, Friday, 6 November

Partly cloudy. High 51°, low 40°.

Pressure29.80 inHg
Wind6 mph SW
Humidity69%
Visibility—
Dew point37°
Sat, 0753° / 37°0.02Light rain
53 °Light rain

Umtanum, Saturday, 7 November

Light rain. High 53°, low 37°.

Pressure30.06 inHg
Wind10.1 mph W
Humidity54%
Visibility—
Dew point32°
Sun, 0853° / 38°0.01Light rain
53 °Light rain

Umtanum, Sunday, 8 November

Light rain. High 53°, low 38°.

Pressure30.12 inHg
Wind16.4 mph W
Humidity73%
Visibility—
Dew point36°
Mon, 0948° / 34°0Partly cloudy
48 °Partly cloudy

Umtanum, Monday, 9 November

Partly cloudy. High 48°, low 34°.

Pressure30.45 inHg
Wind5.2 mph NW
Humidity67%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1048° / 33°0.06Climate normal
48 °Climate normal

Umtanum, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation28%
Record high63° (1989)
Record low9° (1986)
Wed, 1148° / 33°0.06Climate normal
48 °Climate normal

Umtanum, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation35%
Record high63° (1990)
Record low1° (1985)
Thu, 1248° / 33°0.08Climate normal
48 °Climate normal

Umtanum, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high48°
Average low33°
Average precipitation0.08 in
Chance of precipitation25%
Record high65° (1999)
Record low-3° (1985)
Fri, 1347° / 34°0.09Climate normal
47 °Climate normal

Umtanum, Friday, 13 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.09 in
Chance of precipitation37%
Record high64° (1999)
Record low12° (1985)
Sat, 1447° / 34°0.06Climate normal
47 °Climate normal

Umtanum, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high62° (2021)
Record low10° (1964)
Sun, 1547° / 34°0.06Climate normal
47 °Climate normal

Umtanum, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.06 in
Chance of precipitation32%
Record high58° (2021)
Record low13° (1964)
Mon, 1646° / 34°0.06Climate normal
46 °Climate normal

Umtanum, Monday, 16 November

Climate normal for this date — 60-year average.

Average high46°
Average low34°
Average precipitation0.06 in
Chance of precipitation37%
Record high61° (1976)
Record low17° (1964)
Tue, 1746° / 33°0.08Climate normal
46 °Climate normal

Umtanum, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.08 in
Chance of precipitation42%
Record high61° (1976)
Record low17° (1987)
Wed, 1845° / 31°0.05Climate normal
45 °Climate normal

Umtanum, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high45°
Average low31°
Average precipitation0.05 in
Chance of precipitation27%
Record high57° (2008)
Record low14° (1994)
Thu, 1944° / 31°0.12Climate normal
44 °Climate normal

Umtanum, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.12 in
Chance of precipitation50%
Record high56° (1989)
Record low-5° (1985)
Fri, 2044° / 31°0.09Climate normal
44 °Climate normal

Umtanum, Friday, 20 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.09 in
Chance of precipitation33%
Record high54° (1971)
Record low10° (1985)
Sat, 2142° / 29°0.07Climate normal
42 °Climate normal

Umtanum, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high42°
Average low29°
Average precipitation0.07 in
Chance of precipitation32%
Record high54° (1989)
Record low1° (1985)
Sun, 2241° / 28°0.09Climate normal
41 °Climate normal

Umtanum, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high41°
Average low28°
Average precipitation0.09 in
Chance of precipitation37%
Record high54° (1990)
Record low6° (1985)
Mon, 2340° / 28°0.08Climate normal
40 °Climate normal

Umtanum, Monday, 23 November

Climate normal for this date — 60-year average.

Average high40°
Average low28°
Average precipitation0.08 in
Chance of precipitation43%
Record high55° (2017)
Record low-14° (1985)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Umtanum, WA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Umtanum, WA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.