Monthly outlook for Grandview, WA: average high 64.8°, average low 44.1°. That is 1.7° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 16 October (71.9°), the coolest 24 October (38.5°).
64.8°/44.1°
Average high / low
+1.7°
Above normal
0 / 3
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
65.5°
63.9°
+0.9°
25 October – 3 November
63.5°
57°
+3.6°
4 November – 13 November
at normal
52.7°
—
October records over 66 years
90.1°6 October 2014All-time high
21.2°30 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Mabton (5 mi).
Fri, 1672° / 40°0
72 °
Grandview, Friday, 16 October
Overcast. High 72°, low 40°.
Pressure30.30 inHg
Wind2.3 mph S
Humidity35%
Visibility6.2 mi
Dew point37°
Sat, 1770° / 40°0
70 °
Grandview, Saturday, 17 October
Overcast. High 70°, low 40°.
Pressure30.18 inHg
Wind2 mph W
Humidity40%
Visibility6.2 mi
Dew point40°
Sun, 1864° / 41°0
64 °
Grandview, Sunday, 18 October
Overcast. High 64°, low 41°.
Pressure30.09 inHg
Wind1.9 mph W
Humidity34%
Visibility6.2 mi
Dew point26°
Mon, 1964° / 46°0
64 °
Grandview, Monday, 19 October
Overcast. High 64°, low 46°.
Pressure29.85 inHg
Wind1.5 mph SW
Humidity34%
Visibility6.2 mi
Dew point25°
Tue, 2066° / 46°0
66 °
Grandview, Tuesday, 20 October
Overcast. High 66°, low 46°.
Pressure30.03 inHg
Wind3.4 mph S
Humidity44%
Visibility—
Dew point35°
Wed, 2165° / 47°0
65 °
Grandview, Wednesday, 21 October
Overcast. High 65°, low 47°.
Pressure29.94 inHg
Wind10.6 mph SE
Humidity37%
Visibility—
Dew point31°
Thu, 2265° / 46°0
65 °
Grandview, Thursday, 22 October
Overcast. High 65°, low 46°.
Pressure29.94 inHg
Wind7.8 mph NW
Humidity49%
Visibility—
Dew point35°
Fri, 2362° / 43°0
62 °
Grandview, Friday, 23 October
Mostly clear. High 62°, low 43°.
Pressure30.18 inHg
Wind16.1 mph NW
Humidity31%
Visibility—
Dew point26°
Sat, 2456° / 39°0
56 °
Grandview, Saturday, 24 October
Partly cloudy. High 56°, low 39°.
Pressure30.53 inHg
Wind6.4 mph W
Humidity48%
Visibility—
Dew point29°
Sun, 2558° / 40°0
58 °
Grandview, Sunday, 25 October
Partly cloudy. High 58°, low 40°.
Pressure30.47 inHg
Wind3.9 mph SE
Humidity41%
Visibility—
Dew point26°
Mon, 2664° / 47°0
64 °
Grandview, Monday, 26 October
Overcast. High 64°, low 47°.
Pressure30.15 inHg
Wind4.7 mph W
Humidity39%
Visibility—
Dew point30°
Tue, 2769° / 54°0
69 °
Grandview, Tuesday, 27 October
Overcast. High 69°, low 54°.
Pressure29.97 inHg
Wind17.4 mph SW
Humidity60%
Visibility—
Dew point47°
Wed, 2870° / 50°0
70 °
Grandview, Wednesday, 28 October
Clear. High 70°, low 50°.
Pressure30.15 inHg
Wind14.3 mph W
Humidity29%
Visibility—
Dew point32°
Thu, 2962° / 42°0
62 °
Grandview, Thursday, 29 October
Clear. High 62°, low 42°.
Pressure30.36 inHg
Wind7.2 mph E
Humidity35%
Visibility—
Dew point26°
Fri, 3058° / 41°0
58 °
Grandview, Friday, 30 October
Clear. High 58°, low 41°.
Pressure30.30 inHg
Wind3.6 mph E
Humidity34%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3156° / 40°0.06
56 °
Grandview, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (1967)
Record low22° (2002)
Sun, 0155° / 39°0.05
55 °
Grandview, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.05 in
Chance of precipitation30%
Record high69° (1965)
Record low21° (2002)
Mon, 0255° / 39°0.04
55 °
Grandview, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.04 in
Chance of precipitation23%
Record high67° (1993)
Record low22° (2002)
Tue, 0356° / 39°0.02
56 °
Grandview, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.02 in
Chance of precipitation13%
Record high70° (1983)
Record low23° (2002)
Wed, 0456° / 40°0.07
56 °
Grandview, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.07 in
Chance of precipitation33%
Record high70° (2020)
Record low25° (2003)
Thu, 0555° / 39°0.04
55 °
Grandview, 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 low19° (1973)
Fri, 0654° / 38°0.06
54 °
Grandview, Friday, 6 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.06 in
Chance of precipitation28%
Record high69° (2006)
Record low23° (2003)
Sat, 0754° / 38°0.06
54 °
Grandview, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.06 in
Chance of precipitation28%
Record high70° (1978)
Record low21° (1973)
Sun, 0852° / 38°0.04
52 °
Grandview, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.04 in
Chance of precipitation23%
Record high64° (1995)
Record low28° (2003)
Mon, 0952° / 37°0.04
52 °
Grandview, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.04 in
Chance of precipitation18%
Record high66° (2016)
Record low26° (2020)
Tue, 1051° / 37°0.05
51 °
Grandview, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.05 in
Chance of precipitation32%
Record high66° (1989)
Record low19° (1986)
Wed, 1152° / 37°0.05
52 °
Grandview, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.05 in
Chance of precipitation25%
Record high70° (1990)
Record low22° (1985)
Thu, 1252° / 37°0.05
52 °
Grandview, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.05 in
Chance of precipitation20%
Record high70° (1999)
Record low14° (1985)
Fri, 1351° / 37°0.06
51 °
Grandview, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.06 in
Chance of precipitation32%
Record high70° (1999)
Record low16° (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 Grandview, 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 Grandview, 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.