Monthly outlook for Gilliam, WA: average high 55.2°, average low 44.8°. That is 1.8° above the climate normal for October. Precipitation is expected on 8 days (about 1.4 inches), against a normal of 8 days and 2.2 inches. The warmest day looks like 9 November (68.5°), the coolest 31 October (33°).
55.2°/44.8°
Average high / low
+1.8°
Above normal
8 / 8
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
51.9°
53.1°
-0.6°
5 November – 14 November
60.6°
49.4°
+6.2°
15 November – 24 November
at normal
45.2°
—
October records over 66 years
88.3°2 October 1975All-time high
10.6°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Kooskooskie (9 mi).
Tue, 2754° / 44°0.03
54 °
Gilliam, Tuesday, 27 October
Light rain. High 54°, low 44°.
Pressure29.97 inHg
Wind12.6 mph SW
Humidity63%
Visibility6.2 mi
Dew point41°
Wed, 2853° / 45°0.19
53 °
Gilliam, Wednesday, 28 October
Rain. High 53°, low 45°.
Pressure29.97 inHg
Wind11.2 mph SW
Humidity58%
Visibility6.2 mi
Dew point37°
Thu, 2955° / 40°0
55 °
Gilliam, Thursday, 29 October
Mostly clear. High 55°, low 40°.
Pressure30.00 inHg
Wind3.4 mph W
Humidity48%
Visibility6.2 mi
Dew point32°
Fri, 3045° / 35°0.07
45 °
Gilliam, Friday, 30 October
Light rain. High 45°, low 35°.
Pressure29.97 inHg
Wind8 mph SW
Humidity95%
Visibility—
Dew point40°
Sat, 3143° / 33°0.04
43 °
Gilliam, Saturday, 31 October
Light rain. High 43°, low 33°.
Pressure30.06 inHg
Wind5.6 mph S
Humidity89%
Visibility—
Dew point34°
Sun, 0150° / 41°0.01
50 °
Gilliam, Sunday, 1 November
Light rain. High 50°, low 41°.
Pressure30.15 inHg
Wind9.1 mph SW
Humidity62%
Visibility—
Dew point35°
Mon, 0252° / 39°0
52 °
Gilliam, Monday, 2 November
Overcast. High 52°, low 39°.
Pressure30.27 inHg
Wind6 mph E
Humidity41%
Visibility—
Dew point26°
Tue, 0355° / 44°0.13
55 °
Gilliam, Tuesday, 3 November
Light rain. High 55°, low 44°.
Pressure29.94 inHg
Wind6.2 mph NW
Humidity37%
Visibility—
Dew point25°
Wed, 0460° / 45°0.12
60 °
Gilliam, Wednesday, 4 November
Light rain. High 60°, low 45°.
Pressure29.97 inHg
Wind7.5 mph SE
Humidity51%
Visibility—
Dew point37°
Thu, 0562° / 54°0.06
62 °
Gilliam, Thursday, 5 November
Light rain. High 62°, low 54°.
Pressure29.74 inHg
Wind8.6 mph SE
Humidity52%
Visibility—
Dew point42°
Fri, 0665° / 50°0.38
65 °
Gilliam, Friday, 6 November
Rain. High 65°, low 50°.
Pressure29.68 inHg
Wind16.9 mph S
Humidity79%
Visibility—
Dew point47°
Sat, 0753° / 48°0.33
53 °
Gilliam, Saturday, 7 November
Light rain. High 53°, low 48°.
Pressure29.62 inHg
Wind26.3 mph SW
Humidity57%
Visibility—
Dew point38°
Sun, 0857° / 46°0.02
57 °
Gilliam, Sunday, 8 November
Light rain. High 57°, low 46°.
Pressure30.06 inHg
Wind14 mph SW
Humidity46%
Visibility—
Dew point33°
Mon, 0968° / 54°0
68 °
Gilliam, Monday, 9 November
Light rain. High 68°, low 54°.
Pressure30.09 inHg
Wind11.3 mph SW
Humidity50%
Visibility—
Dew point44°
Tue, 1059° / 55°0.02
59 °
Gilliam, Tuesday, 10 November
Light rain. High 59°, low 55°.
Pressure30.12 inHg
Wind5.9 mph SE
Humidity64%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1149° / 35°0.13
49 °
Gilliam, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.13 in
Chance of precipitation43%
Record high67° (1990)
Record low3° (2000)
Thu, 1249° / 36°0.17
49 °
Gilliam, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.17 in
Chance of precipitation42%
Record high72° (1999)
Record low4° (1985)
Fri, 1348° / 35°0.15
48 °
Gilliam, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.15 in
Chance of precipitation57%
Record high70° (1999)
Record low5° (1985)
Sat, 1448° / 35°0.09
48 °
Gilliam, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation43%
Record high67° (1999)
Record low9° (1985)
Sun, 1549° / 35°0.1
49 °
Gilliam, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.1 in
Chance of precipitation45%
Record high65° (2021)
Record low13° (1964)
Mon, 1647° / 35°0.15
47 °
Gilliam, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.15 in
Chance of precipitation58%
Record high62° (1999)
Record low10° (1964)
Tue, 1747° / 35°0.17
47 °
Gilliam, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.17 in
Chance of precipitation58%
Record high64° (1976)
Record low6° (2000)
Wed, 1846° / 34°0.15
46 °
Gilliam, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.15 in
Chance of precipitation52%
Record high60° (2008)
Record low13° (2000)
Thu, 1946° / 33°0.14
46 °
Gilliam, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.14 in
Chance of precipitation43%
Record high60° (1989)
Record low8° (1985)
Fri, 2045° / 33°0.15
45 °
Gilliam, Friday, 20 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.15 in
Chance of precipitation53%
Record high62° (2002)
Record low14° (1985)
Sat, 2144° / 31°0.13
44 °
Gilliam, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.13 in
Chance of precipitation53%
Record high58° (2002)
Record low3° (1985)
Sun, 2244° / 31°0.16
44 °
Gilliam, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.16 in
Chance of precipitation53%
Record high66° (2017)
Record low-2° (1985)
Mon, 2343° / 30°0.17
43 °
Gilliam, Monday, 23 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.17 in
Chance of precipitation58%
Record high64° (2017)
Record low-11° (1985)
Tue, 2442° / 31°0.18
42 °
Gilliam, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.18 in
Chance of precipitation58%
Record high56° (1976)
Record low-10° (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 Gilliam, 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 Gilliam, 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.