As of 08:12 PDT

Weather in Prosser, WA

49°Current weather

Prosser, Sunday, 11 October, 08:12

Overcast. Feels like 49°. High 62°, low 41°.

Pressure29.85 inHg
Wind3 mph NW
Humidity70%
Visibility6.2 mi
Dew point39°

Monthly outlook for Prosser, WA: average high 66.5°, average low 45.3°. That is 1.4° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 17 October (78.4°), the coolest 12 October (36.2°).

66.5°/45.3°
Average high / low
+1.4°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October67.7°65.4°+1.3°
21 October – 30 October64.4°59.8°+2.6°
31 October – 9 Novemberat normal54.5°—

October records over 66 years

90.3°6 October 2014All-time high
21.6°30 October 2019All-time low
Mon, 1261° / 36°0Mostly clear
61 °Mostly clear

Prosser, Monday, 12 October

Mostly clear. High 61°, low 36°.

Pressure30.06 inHg
Wind2.7 mph N
Humidity39%
Visibility6.2 mi
Dew point26°
Tue, 1364° / 40°0Mostly clear
64 °Mostly clear

Prosser, Tuesday, 13 October

Mostly clear. High 64°, low 40°.

Pressure30.15 inHg
Wind2.4 mph SW
Humidity37%
Visibility6.2 mi
Dew point30°
Wed, 1469° / 46°0Overcast
69 °Overcast

Prosser, Wednesday, 14 October

Overcast. High 69°, low 46°.

Pressure30.24 inHg
Wind3.5 mph SW
Humidity32%
Visibility6.2 mi
Dew point33°
Thu, 1571° / 50°0Clear
71 °Clear

Prosser, Thursday, 15 October

Clear. High 71°, low 50°.

Pressure30.42 inHg
Wind4 mph NE
Humidity37%
Visibility—
Dew point36°
Fri, 1675° / 51°0Clear
75 °Clear

Prosser, Friday, 16 October

Clear. High 75°, low 51°.

Pressure30.21 inHg
Wind6 mph SE
Humidity32%
Visibility—
Dew point33°
Sat, 1778° / 54°0Overcast
78 °Overcast

Prosser, Saturday, 17 October

Overcast. High 78°, low 54°.

Pressure30.06 inHg
Wind14.7 mph W
Humidity39%
Visibility—
Dew point39°
Sun, 1870° / 49°0Overcast
70 °Overcast

Prosser, Sunday, 18 October

Overcast. High 70°, low 49°.

Pressure30.03 inHg
Wind6.6 mph SE
Humidity46%
Visibility—
Dew point38°
Mon, 1967° / 48°0.02Light rain
67 °Light rain

Prosser, Monday, 19 October

Light rain. High 67°, low 48°.

Pressure30.00 inHg
Wind20 mph W
Humidity45%
Visibility—
Dew point38°
Tue, 2061° / 42°0Clear
61 °Clear

Prosser, Tuesday, 20 October

Clear. High 61°, low 42°.

Pressure30.15 inHg
Wind6.2 mph W
Humidity47%
Visibility—
Dew point32°
Wed, 2164° / 44°0Overcast
64 °Overcast

Prosser, Wednesday, 21 October

Overcast. High 64°, low 44°.

Pressure30.12 inHg
Wind4 mph W
Humidity54%
Visibility—
Dew point37°
Thu, 2261° / 43°0Overcast
61 °Overcast

Prosser, Thursday, 22 October

Overcast. High 61°, low 43°.

Pressure30.15 inHg
Wind7.5 mph NE
Humidity47%
Visibility—
Dew point34°
Fri, 2367° / 46°0Overcast
67 °Overcast

Prosser, Friday, 23 October

Overcast. High 67°, low 46°.

Pressure30.09 inHg
Wind14.5 mph W
Humidity46%
Visibility—
Dew point37°
Sat, 2462° / 44°0Partly cloudy
62 °Partly cloudy

Prosser, Saturday, 24 October

Partly cloudy. High 62°, low 44°.

Pressure30.21 inHg
Wind6.6 mph NE
Humidity48%
Visibility—
Dew point36°
Sun, 2563° / 45°0Overcast
63 °Overcast

Prosser, Sunday, 25 October

Overcast. High 63°, low 45°.

Pressure30.45 inHg
Wind3.3 mph NW
Humidity33%
Visibility—
Dew point27°
Mon, 2670° / 47°0Overcast
70 °Overcast

Prosser, Monday, 26 October

Overcast. High 70°, low 47°.

Pressure30.21 inHg
Wind5.5 mph S
Humidity31%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2758° / 40°0.05Climate normal
58 °Climate normal

Prosser, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high58°
Average low40°
Average precipitation0.05 in
Chance of precipitation18%
Record high76° (2003)
Record low30° (2020)
Wed, 2857° / 40°0.04Climate normal
57 °Climate normal

Prosser, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high57°
Average low40°
Average precipitation0.04 in
Chance of precipitation30%
Record high73° (2003)
Record low29° (2023)
Thu, 2957° / 40°0.05Climate normal
57 °Climate normal

Prosser, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high57°
Average low40°
Average precipitation0.05 in
Chance of precipitation25%
Record high74° (1965)
Record low24° (1971)
Fri, 3056° / 39°0.04Climate normal
56 °Climate normal

Prosser, Friday, 30 October

Climate normal for this date — 60-year average.

Average high56°
Average low39°
Average precipitation0.04 in
Chance of precipitation23%
Record high71° (1967)
Record low22° (2019)
Sat, 3156° / 40°0.05Climate normal
56 °Climate normal

Prosser, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.05 in
Chance of precipitation22%
Record high72° (1967)
Record low23° (2006)
Sun, 0155° / 39°0.05Climate normal
55 °Climate normal

Prosser, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.05 in
Chance of precipitation28%
Record high68° (1965)
Record low21° (2002)
Mon, 0255° / 39°0.03Climate normal
55 °Climate normal

Prosser, Monday, 2 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.03 in
Chance of precipitation17%
Record high67° (1993)
Record low23° (2002)
Tue, 0356° / 39°0.02Climate normal
56 °Climate normal

Prosser, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high56°
Average low39°
Average precipitation0.02 in
Chance of precipitation17%
Record high71° (1983)
Record low24° (2002)
Wed, 0456° / 40°0.06Climate normal
56 °Climate normal

Prosser, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.06 in
Chance of precipitation27%
Record high70° (2020)
Record low26° (2003)
Thu, 0555° / 39°0.04Climate normal
55 °Climate normal

Prosser, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.04 in
Chance of precipitation23%
Record high69° (2012)
Record low22° (2003)
Fri, 0654° / 38°0.05Climate normal
54 °Climate normal

Prosser, Friday, 6 November

Climate normal for this date — 60-year average.

Average high54°
Average low38°
Average precipitation0.05 in
Chance of precipitation28%
Record high70° (2006)
Record low23° (2003)
Sat, 0754° / 38°0.06Climate normal
54 °Climate normal

Prosser, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high54°
Average low38°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (1978)
Record low22° (1973)
Sun, 0852° / 37°0.04Climate normal
52 °Climate normal

Prosser, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.04 in
Chance of precipitation25%
Record high64° (1995)
Record low28° (2003)
Mon, 0952° / 37°0.03Climate normal
52 °Climate normal

Prosser, Monday, 9 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.03 in
Chance of precipitation18%
Record high66° (2016)
Record low24° (2020)

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 Prosser, 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 Prosser, 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.