Monthly outlook for Barstow, WA: average high 57.8°, average low 39°. That is 2.9° above the climate normal for October. Precipitation is expected on 5 days (about 1.3 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 26 October (65.7°), the coolest 1 November (30.5°).
57.8°/39°
Average high / low
+2.9°
Above normal
5 / 5
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
62.5°
55°
+4.2°
27 October – 5 November
49.9°
47.6°
+1.3°
6 November – 15 November
at normal
43.4°
—
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).
Sun, 1863° / 33°0
63 °
Barstow, Sunday, 18 October
Overcast. High 63°, low 33°.
Pressure30.15 inHg
Wind2.9 mph SE
Humidity42%
Visibility6.2 mi
Dew point27°
Mon, 1958° / 37°0
58 °
Barstow, Monday, 19 October
Overcast. High 58°, low 37°.
Pressure29.94 inHg
Wind1.4 mph NE
Humidity44%
Visibility6.2 mi
Dew point29°
Tue, 2063° / 37°0
63 °
Barstow, Tuesday, 20 October
Clear. High 63°, low 37°.
Pressure30.09 inHg
Wind2.5 mph N
Humidity36%
Visibility6.2 mi
Dew point31°
Wed, 2163° / 41°0
63 °
Barstow, Wednesday, 21 October
Clear. High 63°, low 41°.
Pressure29.97 inHg
Wind2.2 mph E
Humidity38%
Visibility6.2 mi
Dew point33°
Thu, 2259° / 42°0
59 °
Barstow, Thursday, 22 October
Overcast. High 59°, low 42°.
Pressure29.88 inHg
Wind4.1 mph SE
Humidity52%
Visibility—
Dew point36°
Fri, 2364° / 40°0
64 °
Barstow, Friday, 23 October
Mostly clear. High 64°, low 40°.
Pressure30.06 inHg
Wind4.9 mph NW
Humidity42%
Visibility—
Dew point31°
Sat, 2462° / 41°0
62 °
Barstow, Saturday, 24 October
Overcast. High 62°, low 41°.
Pressure30.15 inHg
Wind2.9 mph NW
Humidity41%
Visibility—
Dew point30°
Sun, 2564° / 40°0
64 °
Barstow, Sunday, 25 October
Partly cloudy. High 64°, low 40°.
Pressure30.18 inHg
Wind3 mph E
Humidity44%
Visibility—
Dew point32°
Mon, 2666° / 41°0
66 °
Barstow, Monday, 26 October
Overcast. High 66°, low 41°.
Pressure30.00 inHg
Wind2.3 mph E
Humidity42%
Visibility—
Dew point32°
Tue, 2766° / 46°0
66 °
Barstow, Tuesday, 27 October
Overcast. High 66°, low 46°.
Pressure29.71 inHg
Wind3.6 mph SE
Humidity39%
Visibility—
Dew point32°
Wed, 2862° / 43°0.08
62 °
Barstow, Wednesday, 28 October
Light rain. High 62°, low 43°.
Pressure29.71 inHg
Wind6.8 mph S
Humidity52%
Visibility—
Dew point36°
Thu, 2947° / 40°0.2
47 °
Barstow, Thursday, 29 October
Light rain. High 47°, low 40°.
Pressure29.71 inHg
Wind6.7 mph SE
Humidity97%
Visibility—
Dew point43°
Fri, 3039° / 33°0.54
39 °
Barstow, Friday, 30 October
Snow. High 39°, low 33°.
Pressure29.80 inHg
Wind3.4 mph SE
Humidity93%
Visibility—
Dew point36°
Sat, 3144° / 37°0.36
44 °
Barstow, Saturday, 31 October
Snow. High 44°, low 37°.
Pressure29.47 inHg
Wind3.8 mph SE
Humidity97%
Visibility—
Dew point40°
Sun, 0142° / 30°0.1
42 °
Barstow, Sunday, 1 November
Snow. High 42°, low 30°.
Pressure30.00 inHg
Wind3.6 mph SE
Humidity92%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 1443° / 31°0.07
43 °
Barstow, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.07 in
Chance of precipitation28%
Record high56° (1999)
Record low8° (1964)
Sun, 1542° / 31°0.08
42 °
Barstow, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.08 in
Chance of precipitation43%
Record high56° (2001)
Record low13° (2000)
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.