Monthly outlook for Grandview, WA: average high 60.1°, average low 41.7°. That is 0.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.5 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 21 October (66.5°), the coolest 24 October (38.8°).
60.1°/41.7°
Average high / low
+0.8°
Above normal
1 / 4
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
62.9°
60.5°
+1.3°
30 October – 8 November
55.3°
54.7°
+0.3°
9 November – 18 November
at normal
50.8°
—
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).
Wed, 2166° / 39°0
66 °
Grandview, Wednesday, 21 October
Overcast. High 66°, low 39°.
Pressure30.00 inHg
Wind1.8 mph SW
Humidity37%
Visibility6.2 mi
Dew point35°
Thu, 2266° / 40°0
66 °
Grandview, Thursday, 22 October
Overcast. High 66°, low 40°.
Pressure29.88 inHg
Wind0.8 mph SW
Humidity45%
Visibility6.2 mi
Dew point37°
Fri, 2364° / 41°0
64 °
Grandview, Friday, 23 October
Clear. High 64°, low 41°.
Pressure30.24 inHg
Wind7.1 mph W
Humidity37%
Visibility6.2 mi
Dew point31°
Sat, 2462° / 39°0
62 °
Grandview, Saturday, 24 October
Overcast. High 62°, low 39°.
Pressure30.24 inHg
Wind1.4 mph S
Humidity40%
Visibility6.2 mi
Dew point27°
Sun, 2564° / 42°0
64 °
Grandview, Sunday, 25 October
Overcast. High 64°, low 42°.
Pressure30.27 inHg
Wind4.8 mph N
Humidity37%
Visibility—
Dew point29°
Mon, 2660° / 44°0
60 °
Grandview, Monday, 26 October
Partly cloudy. High 60°, low 44°.
Pressure30.39 inHg
Wind5.7 mph NE
Humidity38%
Visibility—
Dew point28°
Tue, 2760° / 41°0
60 °
Grandview, Tuesday, 27 October
Mostly clear. High 60°, low 41°.
Pressure30.27 inHg
Wind5.6 mph NW
Humidity30%
Visibility—
Dew point21°
Wed, 2859° / 43°0
59 °
Grandview, Wednesday, 28 October
Overcast. High 59°, low 43°.
Pressure30.18 inHg
Wind4.9 mph NW
Humidity30%
Visibility—
Dew point22°
Thu, 2962° / 43°0
62 °
Grandview, Thursday, 29 October
Partly cloudy. High 62°, low 43°.
Pressure30.03 inHg
Wind7 mph SE
Humidity29%
Visibility—
Dew point21°
Fri, 3063° / 43°0
63 °
Grandview, Friday, 30 October
Partly cloudy. High 63°, low 43°.
Pressure29.80 inHg
Wind7 mph NW
Humidity35%
Visibility—
Dew point27°
Sat, 3163° / 41°0
63 °
Grandview, Saturday, 31 October
Partly cloudy. High 63°, low 41°.
Pressure29.68 inHg
Wind19.5 mph W
Humidity46%
Visibility—
Dew point31°
Sun, 0157° / 40°0
57 °
Grandview, Sunday, 1 November
Clear. High 57°, low 40°.
Pressure30.00 inHg
Wind12.1 mph W
Humidity42%
Visibility—
Dew point28°
Mon, 0254° / 41°0
54 °
Grandview, Monday, 2 November
Overcast. High 54°, low 41°.
Pressure30.18 inHg
Wind3.4 mph NW
Humidity45%
Visibility—
Dew point27°
Tue, 0350° / 46°0.01
50 °
Grandview, Tuesday, 3 November
Light rain. High 50°, low 46°.
Pressure30.15 inHg
Wind5.1 mph NW
Humidity64%
Visibility—
Dew point36°
Wed, 0444° / 43°0.46
44 °
Grandview, Wednesday, 4 November
Rain. High 44°, low 43°.
Pressure29.94 inHg
Wind5.3 mph NW
Humidity92%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 1451° / 37°0.02
51 °
Grandview, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.02 in
Chance of precipitation18%
Record high67° (2001)
Record low18° (1985)
Sun, 1550° / 36°0.05
50 °
Grandview, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.05 in
Chance of precipitation28%
Record high66° (2021)
Record low20° (1985)
Mon, 1650° / 36°0.05
50 °
Grandview, Monday, 16 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.05 in
Chance of precipitation28%
Record high65° (1976)
Record low20° (2014)
Tue, 1750° / 36°0.06
50 °
Grandview, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.06 in
Chance of precipitation30%
Record high68° (2019)
Record low19° (2014)
Wed, 1849° / 35°0.04
49 °
Grandview, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.04 in
Chance of precipitation20%
Record high60° (2003)
Record low18° (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.