Monthly outlook for Barstow, WA: average high 56.7°, average low 38°. That is 1.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 15 October (67.7°), the coolest 24 October (31.6°).
56.7°/38°
Average high / low
+1.5°
Above normal
1 / 5
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
58.3°
56.3°
+1.1°
25 October – 3 November
54°
48.8°
+2.9°
4 November – 13 November
at normal
44.2°
—
October records over 66 years
87.4°1 October 1992All-time high
-0°31 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Kettle Falls (12 mi).
Fri, 1662° / 45°0
62 °
Barstow, Friday, 16 October
Overcast. High 62°, low 45°.
Pressure30.36 inHg
Wind2.8 mph SE
Humidity40%
Visibility6.2 mi
Dew point33°
Sat, 1764° / 38°0
64 °
Barstow, Saturday, 17 October
Overcast. High 64°, low 38°.
Pressure30.03 inHg
Wind2.5 mph S
Humidity45%
Visibility6.2 mi
Dew point37°
Sun, 1858° / 35°0
58 °
Barstow, Sunday, 18 October
Overcast. High 58°, low 35°.
Pressure30.12 inHg
Wind2.6 mph SE
Humidity41%
Visibility6.2 mi
Dew point25°
Mon, 1959° / 41°0
59 °
Barstow, Monday, 19 October
Overcast. High 59°, low 41°.
Pressure29.91 inHg
Wind4.3 mph NW
Humidity44%
Visibility—
Dew point31°
Tue, 2058° / 41°0
58 °
Barstow, Tuesday, 20 October
Overcast. High 58°, low 41°.
Pressure30.00 inHg
Wind4.1 mph NW
Humidity50%
Visibility—
Dew point35°
Wed, 2153° / 36°0
53 °
Barstow, Wednesday, 21 October
Overcast. High 53°, low 36°.
Pressure29.94 inHg
Wind4.1 mph SE
Humidity58%
Visibility—
Dew point33°
Thu, 2253° / 37°0.01
53 °
Barstow, Thursday, 22 October
Light rain. High 53°, low 37°.
Pressure29.91 inHg
Wind6.4 mph W
Humidity51%
Visibility—
Dew point32°
Fri, 2354° / 34°0
54 °
Barstow, Friday, 23 October
Mostly clear. High 54°, low 34°.
Pressure30.30 inHg
Wind7.5 mph NW
Humidity48%
Visibility—
Dew point28°
Sat, 2453° / 32°0
53 °
Barstow, Saturday, 24 October
Clear. High 53°, low 32°.
Pressure30.62 inHg
Wind4 mph NW
Humidity45%
Visibility—
Dew point25°
Sun, 2554° / 34°0
54 °
Barstow, Sunday, 25 October
Overcast. High 54°, low 34°.
Pressure30.56 inHg
Wind3.5 mph E
Humidity44%
Visibility—
Dew point24°
Mon, 2656° / 36°0
56 °
Barstow, Monday, 26 October
Overcast. High 56°, low 36°.
Pressure30.42 inHg
Wind3.4 mph NW
Humidity44%
Visibility—
Dew point27°
Tue, 2756° / 38°0.01
56 °
Barstow, Tuesday, 27 October
Light rain. High 56°, low 38°.
Pressure30.09 inHg
Wind4.7 mph SE
Humidity50%
Visibility—
Dew point30°
Wed, 2860° / 40°0
60 °
Barstow, Wednesday, 28 October
Partly cloudy. High 60°, low 40°.
Pressure30.09 inHg
Wind4.4 mph NW
Humidity50%
Visibility—
Dew point34°
Thu, 2951° / 40°0.06
51 °
Barstow, Thursday, 29 October
Light rain. High 51°, low 40°.
Pressure29.77 inHg
Wind3.6 mph E
Humidity68%
Visibility—
Dew point36°
Fri, 3047° / 38°0.01
47 °
Barstow, Friday, 30 October
Light snow. High 47°, low 38°.
Pressure29.88 inHg
Wind13 mph NW
Humidity32%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3148° / 35°0.08
48 °
Barstow, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.08 in
Chance of precipitation33%
Record high61° (1988)
Record low0° (1984)
Sun, 0148° / 35°0.09
48 °
Barstow, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation42%
Record high62° (1987)
Record low13° (1984)
Mon, 0247° / 34°0.08
47 °
Barstow, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.08 in
Chance of precipitation30%
Record high60° (2018)
Record low18° (1961)
Tue, 0346° / 34°0.05
46 °
Barstow, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.05 in
Chance of precipitation27%
Record high59° (1975)
Record low16° (1994)
Wed, 0447° / 35°0.09
47 °
Barstow, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation37%
Record high63° (1975)
Record low15° (1961)
Thu, 0546° / 34°0.06
46 °
Barstow, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.06 in
Chance of precipitation40%
Record high58° (1975)
Record low11° (1961)
Fri, 0645° / 34°0.08
45 °
Barstow, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.08 in
Chance of precipitation43%
Record high57° (2006)
Record low17° (1961)
Sat, 0745° / 34°0.1
45 °
Barstow, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.1 in
Chance of precipitation38%
Record high58° (2006)
Record low17° (1961)
Sun, 0844° / 33°0.07
44 °
Barstow, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.07 in
Chance of precipitation32%
Record high58° (2016)
Record low16° (2022)
Mon, 0944° / 33°0.08
44 °
Barstow, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.08 in
Chance of precipitation40%
Record high59° (2016)
Record low5° (1986)
Tue, 1043° / 33°0.07
43 °
Barstow, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.07 in
Chance of precipitation35%
Record high56° (1989)
Record low9° (1986)
Wed, 1143° / 32°0.07
43 °
Barstow, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.07 in
Chance of precipitation35%
Record high56° (1990)
Record low2° (1985)
Thu, 1243° / 32°0.08
43 °
Barstow, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.08 in
Chance of precipitation40%
Record high58° (1999)
Record low2° (1985)
Fri, 1342° / 32°0.11
42 °
Barstow, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.11 in
Chance of precipitation42%
Record high54° (1967)
Record low10° (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 Barstow, 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 Barstow, 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.