As of 21:24 PDT

Weather in Mattawa, WA

51°Current weather

Mattawa, Saturday, 17 October, 21:24

Overcast. Feels like 49°. High 65°, low 48°.

Pressure30.12 inHg
Wind6.4 mph NW
Humidity56%
Visibility6.2 mi
Dew point36°

Monthly outlook for Mattawa, WA: average high 62.4°, average low 44.1°. That is 1.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 4 days and 0.6 inches. The warmest day looks like 22 October (69.7°), the coolest 18 October (35.3°).

62.4°/44.1°
Average high / low
+1.3°
Above normal
1 / 4
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October64.8°62.5°+1.3°
27 October – 5 November58.6°55.4°+1.8°
6 November – 15 Novemberat normal50.9°—

October records over 66 years

91.2°6 October 2014All-time high
23.7°29 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Desert Aire (4 mi).

Sun, 1866° / 35°0Clear
66 °Clear

Mattawa, Sunday, 18 October

Clear. High 66°, low 35°.

Pressure30.15 inHg
Wind3.4 mph N
Humidity36%
Visibility6.2 mi
Dew point27°
Mon, 1960° / 40°0Overcast
60 °Overcast

Mattawa, Monday, 19 October

Overcast. High 60°, low 40°.

Pressure29.94 inHg
Wind1.4 mph E
Humidity36%
Visibility6.2 mi
Dew point31°
Tue, 2070° / 48°0Clear
70 °Clear

Mattawa, Tuesday, 20 October

Clear. High 70°, low 48°.

Pressure30.06 inHg
Wind5.2 mph N
Humidity32%
Visibility6.2 mi
Dew point34°
Wed, 2167° / 48°0Clear
67 °Clear

Mattawa, Wednesday, 21 October

Clear. High 67°, low 48°.

Pressure29.97 inHg
Wind1.3 mph NE
Humidity36%
Visibility6.2 mi
Dew point34°
Thu, 2270° / 49°0Mostly clear
70 °Mostly clear

Mattawa, Thursday, 22 October

Mostly clear. High 70°, low 49°.

Pressure29.83 inHg
Wind19.2 mph W
Humidity45%
Visibility—
Dew point38°
Fri, 2362° / 47°0Clear
62 °Clear

Mattawa, Friday, 23 October

Clear. High 62°, low 47°.

Pressure30.09 inHg
Wind15.5 mph W
Humidity39%
Visibility—
Dew point30°
Sat, 2462° / 44°0Partly cloudy
62 °Partly cloudy

Mattawa, Saturday, 24 October

Partly cloudy. High 62°, low 44°.

Pressure30.39 inHg
Wind5.5 mph NW
Humidity29%
Visibility—
Dew point22°
Sun, 2563° / 45°0Overcast
63 °Overcast

Mattawa, Sunday, 25 October

Overcast. High 63°, low 45°.

Pressure30.27 inHg
Wind6 mph NW
Humidity35%
Visibility—
Dew point28°
Mon, 2663° / 46°0Overcast
63 °Overcast

Mattawa, Monday, 26 October

Overcast. High 63°, low 46°.

Pressure29.97 inHg
Wind6 mph NW
Humidity39%
Visibility—
Dew point31°
Tue, 2768° / 44°0Mostly clear
68 °Mostly clear

Mattawa, Tuesday, 27 October

Mostly clear. High 68°, low 44°.

Pressure29.77 inHg
Wind16.5 mph NW
Humidity32%
Visibility—
Dew point28°
Wed, 2862° / 46°0Overcast
62 °Overcast

Mattawa, Wednesday, 28 October

Overcast. High 62°, low 46°.

Pressure29.88 inHg
Wind22.3 mph W
Humidity46%
Visibility—
Dew point34°
Thu, 2961° / 44°0Overcast
61 °Overcast

Mattawa, Thursday, 29 October

Overcast. High 61°, low 44°.

Pressure29.94 inHg
Wind23.6 mph SW
Humidity57%
Visibility—
Dew point38°
Fri, 3057° / 40°0.01Light rain
57 °Light rain

Mattawa, Friday, 30 October

Light rain. High 57°, low 40°.

Pressure29.53 inHg
Wind23.6 mph SW
Humidity45%
Visibility—
Dew point32°
Sat, 3150° / 39°0.13Light rain
50 °Light rain

Mattawa, Saturday, 31 October

Light rain. High 50°, low 39°.

Pressure29.50 inHg
Wind11.3 mph SW
Humidity85%
Visibility—
Dew point38°
Sun, 0155° / 43°0Overcast
55 °Overcast

Mattawa, Sunday, 1 November

Overcast. High 55°, low 43°.

Pressure29.53 inHg
Wind25.4 mph SW
Humidity61%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0254° / 39°0.03Climate normal
54 °Climate normal

Mattawa, Monday, 2 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.03 in
Chance of precipitation23%
Record high66° (2018)
Record low25° (1991)
Tue, 0355° / 40°0.02Climate normal
55 °Climate normal

Mattawa, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.02 in
Chance of precipitation13%
Record high69° (1975)
Record low26° (2002)
Wed, 0455° / 40°0.07Climate normal
55 °Climate normal

Mattawa, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.07 in
Chance of precipitation32%
Record high70° (2020)
Record low29° (2002)
Thu, 0553° / 38°0.06Climate normal
53 °Climate normal

Mattawa, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation40%
Record high65° (2012)
Record low15° (1973)
Fri, 0653° / 38°0.05Climate normal
53 °Climate normal

Mattawa, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.05 in
Chance of precipitation30%
Record high67° (2006)
Record low23° (2003)
Sat, 0753° / 38°0.06Climate normal
53 °Climate normal

Mattawa, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation33%
Record high66° (1978)
Record low19° (1973)
Sun, 0852° / 37°0.04Climate normal
52 °Climate normal

Mattawa, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.04 in
Chance of precipitation18%
Record high64° (1995)
Record low26° (1973)
Mon, 0951° / 37°0.04Climate normal
51 °Climate normal

Mattawa, Monday, 9 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.04 in
Chance of precipitation20%
Record high65° (1989)
Record low27° (2020)
Tue, 1050° / 37°0.05Climate normal
50 °Climate normal

Mattawa, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.05 in
Chance of precipitation32%
Record high67° (1989)
Record low16° (1986)
Wed, 1150° / 36°0.05Climate normal
50 °Climate normal

Mattawa, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.05 in
Chance of precipitation35%
Record high65° (1990)
Record low20° (1985)
Thu, 1251° / 37°0.05Climate normal
51 °Climate normal

Mattawa, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.05 in
Chance of precipitation23%
Record high69° (1999)
Record low10° (1985)
Fri, 1350° / 37°0.06Climate normal
50 °Climate normal

Mattawa, Friday, 13 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.06 in
Chance of precipitation32%
Record high67° (1999)
Record low10° (1985)
Sat, 1451° / 36°0.03Climate normal
51 °Climate normal

Mattawa, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high51°
Average low36°
Average precipitation0.03 in
Chance of precipitation17%
Record high68° (2021)
Record low15° (1985)
Sun, 1549° / 36°0.04Climate normal
49 °Climate normal

Mattawa, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.04 in
Chance of precipitation27%
Record high66° (2021)
Record low19° (2000)

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 Mattawa, 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 Mattawa, 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.