As of 19:09 PDT

Weather in Umtanum, WA

43°Current weather

Umtanum, Friday, 30 October, 19:09

Clear. Feels like 41°. High 46°, low 36°.

Pressure29.91 inHg
Wind4.6 mph E
Humidity72%
Visibility6.2 mi
Dew point35°

Monthly outlook for Umtanum, WA: average high 50.3°, average low 37.4°. That is 0.4° above the climate normal for October. Precipitation is expected on 5 days (about 1.0 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 1 November (56.5°), the coolest 31 October (30.3°).

50.3°/37.4°
Average high / low
+0.4°
Above normal
5 / 5
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
30 October – 8 November52.7°50.8°+1.1°
9 November – 18 November46.3°46.9°-0.3°
19 November – 28 Novemberat normal41.1°—

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).

Sat, 3150° / 30°0Partly cloudy
50 °Partly cloudy

Umtanum, Saturday, 31 October

Partly cloudy. High 50°, low 30°.

Pressure30.03 inHg
Wind0.7 mph NE
Humidity58%
Visibility6.2 mi
Dew point33°
Sun, 0157° / 36°0Clear
57 °Clear

Umtanum, Sunday, 1 November

Clear. High 57°, low 36°.

Pressure30.03 inHg
Wind2.2 mph E
Humidity55%
Visibility6.2 mi
Dew point35°
Mon, 0254° / 37°0Overcast
54 °Overcast

Umtanum, Monday, 2 November

Overcast. High 54°, low 37°.

Pressure30.27 inHg
Wind1.6 mph E
Humidity48%
Visibility6.2 mi
Dew point28°
Tue, 0354° / 42°0Overcast
54 °Overcast

Umtanum, Tuesday, 3 November

Overcast. High 54°, low 42°.

Pressure30.09 inHg
Wind1.5 mph N
Humidity56%
Visibility6.2 mi
Dew point35°
Wed, 0455° / 40°0Clear
55 °Clear

Umtanum, Wednesday, 4 November

Clear. High 55°, low 40°.

Pressure30.15 inHg
Wind2.6 mph SE
Humidity63%
Visibility—
Dew point36°
Thu, 0556° / 39°0Overcast
56 °Overcast

Umtanum, Thursday, 5 November

Overcast. High 56°, low 39°.

Pressure29.94 inHg
Wind6.4 mph SE
Humidity63%
Visibility—
Dew point37°
Fri, 0654° / 38°0.07Light rain
54 °Light rain

Umtanum, Friday, 6 November

Light rain. High 54°, low 38°.

Pressure29.97 inHg
Wind23.1 mph NW
Humidity41%
Visibility—
Dew point28°
Sat, 0751° / 34°0Overcast
51 °Overcast

Umtanum, Saturday, 7 November

Overcast. High 51°, low 34°.

Pressure30.33 inHg
Wind5.8 mph SE
Humidity53%
Visibility—
Dew point28°
Sun, 0850° / 39°0Overcast
50 °Overcast

Umtanum, Sunday, 8 November

Overcast. High 50°, low 39°.

Pressure30.21 inHg
Wind3.1 mph NE
Humidity44%
Visibility—
Dew point25°
Mon, 0947° / 40°0.18Light rain
47 °Light rain

Umtanum, Monday, 9 November

Light rain. High 47°, low 40°.

Pressure29.94 inHg
Wind4.6 mph N
Humidity68%
Visibility—
Dew point35°
Tue, 1044° / 35°0.26Rain
44 °Rain

Umtanum, Tuesday, 10 November

Rain. High 44°, low 35°.

Pressure29.94 inHg
Wind4.1 mph NE
Humidity79%
Visibility—
Dew point35°
Wed, 1147° / 39°0.08Light rain
47 °Light rain

Umtanum, Wednesday, 11 November

Light rain. High 47°, low 39°.

Pressure29.71 inHg
Wind8.3 mph NW
Humidity84%
Visibility—
Dew point40°
Thu, 1249° / 38°0Overcast
49 °Overcast

Umtanum, Thursday, 12 November

Overcast. High 49°, low 38°.

Pressure30.09 inHg
Wind3.8 mph S
Humidity82%
Visibility—
Dew point38°
Fri, 1342° / 38°0.38Light rain
42 °Light rain

Umtanum, Friday, 13 November

Light rain. High 42°, low 38°.

Pressure29.88 inHg
Wind6.1 mph E
Humidity73%
Visibility—
Dew point34°
Sat, 1447° / 39°0.02Light rain
47 °Light rain

Umtanum, Saturday, 14 November

Light rain. High 47°, low 39°.

Pressure29.71 inHg
Wind4.9 mph S
Humidity81%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 2441° / 28°0.11Climate normal
41 °Climate normal

Umtanum, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high41°
Average low28°
Average precipitation0.11 in
Chance of precipitation43%
Record high57° (1995)
Record low-11° (1985)
Wed, 2540° / 28°0.12Climate normal
40 °Climate normal

Umtanum, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high40°
Average low28°
Average precipitation0.12 in
Chance of precipitation37%
Record high55° (1963)
Record low-7° (1985)
Thu, 2639° / 27°0.05Climate normal
39 °Climate normal

Umtanum, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high39°
Average low27°
Average precipitation0.05 in
Chance of precipitation23%
Record high54° (2014)
Record low-3° (1985)
Fri, 2740° / 28°0.08Climate normal
40 °Climate normal

Umtanum, Friday, 27 November

Climate normal for this date — 60-year average.

Average high40°
Average low28°
Average precipitation0.08 in
Chance of precipitation40%
Record high56° (2014)
Record low-1° (1979)
Sat, 2840° / 27°0.07Climate normal
40 °Climate normal

Umtanum, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high40°
Average low27°
Average precipitation0.07 in
Chance of precipitation30%
Record high58° (2021)
Record low2° (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.