Monthly outlook for Grant, WA: average high 59.3°, average low 42.7°. That is 0.2° below the climate normal for October. Precipitation is expected on 5 days (about 3.7 inches), against a normal of 6 days and 2.4 inches. The warmest day looks like 8 October (71.9°), the coolest 13 October (36°).
59.3°/42.7°
Average high / low
−0.2°
Below normal
5 / 6
Wet days / normal
3.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
61.9°
60.8°
+0.6°
18 October – 27 October
55.1°
57.1°
-1.1°
28 October – 6 November
at normal
53.5°
—
October records over 66 years
87.1°1 October 1987All-time high
28.6°28 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Grapeview (7 mi).
Fri, 0961° / 47°0.02
61 °
Grant, Friday, 9 October
Light rain. High 61°, low 47°.
Pressure29.80 inHg
Wind15.3 mph W
Humidity57%
Visibility6.2 mi
Dew point46°
Sat, 1059° / 43°0.02
59 °
Grant, Saturday, 10 October
Light rain. High 59°, low 43°.
Pressure29.85 inHg
Wind7.5 mph NE
Humidity67%
Visibility6.2 mi
Dew point44°
Sun, 1163° / 41°0
63 °
Grant, Sunday, 11 October
Clear. High 63°, low 41°.
Pressure30.00 inHg
Wind4.1 mph NE
Humidity47%
Visibility6.2 mi
Dew point38°
Mon, 1263° / 38°0
63 °
Grant, Monday, 12 October
Clear. High 63°, low 38°.
Pressure30.06 inHg
Wind3.5 mph NE
Humidity53%
Visibility—
Dew point36°
Tue, 1361° / 36°0.33
61 °
Grant, Tuesday, 13 October
Rain. High 61°, low 36°.
Pressure29.97 inHg
Wind13.6 mph SW
Humidity68%
Visibility—
Dew point41°
Wed, 1455° / 43°0.02
55 °
Grant, Wednesday, 14 October
Light rain. High 55°, low 43°.
Pressure29.88 inHg
Wind7.9 mph W
Humidity61%
Visibility—
Dew point40°
Thu, 1560° / 40°0
60 °
Grant, Thursday, 15 October
Clear. High 60°, low 40°.
Pressure30.33 inHg
Wind3.9 mph NE
Humidity63%
Visibility—
Dew point40°
Fri, 1662° / 41°0
62 °
Grant, Friday, 16 October
Overcast. High 62°, low 41°.
Pressure30.33 inHg
Wind3.7 mph S
Humidity62%
Visibility—
Dew point40°
Sat, 1763° / 44°0
63 °
Grant, Saturday, 17 October
Overcast. High 63°, low 44°.
Pressure30.33 inHg
Wind4.3 mph NE
Humidity58%
Visibility—
Dew point41°
Sun, 1861° / 43°0
61 °
Grant, Sunday, 18 October
Overcast. High 61°, low 43°.
Pressure30.24 inHg
Wind2.1 mph W
Humidity69%
Visibility—
Dew point43°
Mon, 1961° / 42°0
61 °
Grant, Monday, 19 October
Overcast. High 61°, low 42°.
Pressure30.24 inHg
Wind4.4 mph NE
Humidity68%
Visibility—
Dew point43°
Tue, 2054° / 45°1.01
54 °
Grant, Tuesday, 20 October
Heavy rain. High 54°, low 45°.
Pressure30.12 inHg
Wind5.8 mph SW
Humidity61%
Visibility—
Dew point40°
Wed, 2158° / 47°0.39
58 °
Grant, Wednesday, 21 October
Rain. High 58°, low 47°.
Pressure29.83 inHg
Wind15.6 mph SW
Humidity76%
Visibility—
Dew point46°
Thu, 2248° / 42°1.38
48 °
Grant, Thursday, 22 October
Rain. High 48°, low 42°.
Pressure29.38 inHg
Wind6 mph NE
Humidity96%
Visibility—
Dew point42°
Fri, 2349° / 43°0.58
49 °
Grant, Friday, 23 October
Rain. High 49°, low 43°.
Pressure29.71 inHg
Wind2.8 mph NW
Humidity95%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2456° / 47°0.2
56 °
Grant, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high56°
Average low47°
Average precipitation0.2 in
Chance of precipitation48%
Record high69° (1965)
Record low38° (2024)
Sun, 2556° / 47°0.2
56 °
Grant, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high56°
Average low47°
Average precipitation0.2 in
Chance of precipitation50%
Record high68° (1965)
Record low37° (2020)
Mon, 2655° / 46°0.22
55 °
Grant, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low46°
Average precipitation0.22 in
Chance of precipitation55%
Record high69° (1965)
Record low36° (2020)
Tue, 2755° / 46°0.23
55 °
Grant, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low46°
Average precipitation0.23 in
Chance of precipitation40%
Record high66° (1968)
Record low29° (2023)
Wed, 2855° / 45°0.23
55 °
Grant, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low45°
Average precipitation0.23 in
Chance of precipitation52%
Record high68° (1962)
Record low29° (2023)
Thu, 2954° / 45°0.17
54 °
Grant, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.17 in
Chance of precipitation45%
Record high68° (1962)
Record low34° (2023)
Fri, 3054° / 45°0.21
54 °
Grant, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.21 in
Chance of precipitation52%
Record high62° (1987)
Record low36° (1991)
Sat, 3154° / 45°0.28
54 °
Grant, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.28 in
Chance of precipitation50%
Record high63° (1964)
Record low33° (1984)
Sun, 0154° / 45°0.22
54 °
Grant, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.22 in
Chance of precipitation53%
Record high65° (1981)
Record low35° (1973)
Mon, 0254° / 45°0.22
54 °
Grant, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.22 in
Chance of precipitation55%
Record high66° (1962)
Record low36° (1973)
Tue, 0353° / 45°0.24
53 °
Grant, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low45°
Average precipitation0.24 in
Chance of precipitation55%
Record high64° (2010)
Record low34° (2017)
Wed, 0454° / 45°0.3
54 °
Grant, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.3 in
Chance of precipitation60%
Record high66° (1980)
Record low34° (2003)
Thu, 0553° / 44°0.19
53 °
Grant, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low44°
Average precipitation0.19 in
Chance of precipitation60%
Record high64° (1997)
Record low32° (1973)
Fri, 0652° / 44°0.3
52 °
Grant, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.3 in
Chance of precipitation58%
Record high58° (1976)
Record low35° (2017)
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 Grant, 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 Grant, 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.