Monthly outlook for Marcus, WA: average high 59.4°, average low 39.5°. That is 0.2° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 8 October (78°), the coolest 16 October (32.6°).
59.4°/39.5°
Average high / low
+0.2°
Above normal
2 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
58°
60.5°
-1.4°
17 October – 26 October
61.7°
55°
+3.7°
27 October – 5 November
at normal
47.6°
—
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 (4 mi).
Thu, 0878° / 47°0
78 °
Marcus, Thursday, 8 October
Overcast. High 78°, low 47°.
Pressure30.00 inHg
Wind1.5 mph E
Humidity56%
Visibility6.2 mi
Dew point48°
Fri, 0965° / 47°0.02
65 °
Marcus, Friday, 9 October
Light rain. High 65°, low 47°.
Pressure29.53 inHg
Wind7.1 mph SE
Humidity58%
Visibility6.2 mi
Dew point45°
Sat, 1051° / 39°0.1
51 °
Marcus, Saturday, 10 October
Light rain. High 51°, low 39°.
Pressure29.88 inHg
Wind5 mph NW
Humidity92%
Visibility3.8 mi
Dew point42°
Sun, 1151° / 36°0
51 °
Marcus, Sunday, 11 October
Clear. High 51°, low 36°.
Pressure30.12 inHg
Wind6.4 mph N
Humidity51%
Visibility6.2 mi
Dew point23°
Mon, 1254° / 35°0
54 °
Marcus, Monday, 12 October
Clear. High 54°, low 35°.
Pressure30.12 inHg
Wind3 mph E
Humidity55%
Visibility—
Dew point30°
Tue, 1346° / 39°0.23
46 °
Marcus, Tuesday, 13 October
Snow. High 46°, low 39°.
Pressure29.88 inHg
Wind4.1 mph S
Humidity61%
Visibility—
Dew point33°
Wed, 1449° / 40°0
49 °
Marcus, Wednesday, 14 October
Overcast. High 49°, low 40°.
Pressure29.88 inHg
Wind7.7 mph NW
Humidity60%
Visibility—
Dew point35°
Thu, 1553° / 35°0
53 °
Marcus, Thursday, 15 October
Mostly clear. High 53°, low 35°.
Pressure30.45 inHg
Wind5.2 mph N
Humidity57%
Visibility—
Dew point33°
Fri, 1656° / 33°0
56 °
Marcus, Friday, 16 October
Clear. High 56°, low 33°.
Pressure30.53 inHg
Wind4.5 mph NW
Humidity53%
Visibility—
Dew point29°
Sat, 1761° / 37°0
61 °
Marcus, Saturday, 17 October
Clear. High 61°, low 37°.
Pressure30.09 inHg
Wind4 mph N
Humidity52%
Visibility—
Dew point33°
Sun, 1860° / 39°0
60 °
Marcus, Sunday, 18 October
Overcast. High 60°, low 39°.
Pressure29.88 inHg
Wind4.3 mph SE
Humidity52%
Visibility—
Dew point34°
Mon, 1960° / 38°0
60 °
Marcus, Monday, 19 October
Mostly clear. High 60°, low 38°.
Pressure30.18 inHg
Wind2.8 mph SE
Humidity44%
Visibility—
Dew point30°
Tue, 2063° / 40°0
63 °
Marcus, Tuesday, 20 October
Clear. High 63°, low 40°.
Pressure30.39 inHg
Wind2.8 mph N
Humidity54%
Visibility—
Dew point37°
Wed, 2164° / 42°0
64 °
Marcus, Wednesday, 21 October
Overcast. High 64°, low 42°.
Pressure30.39 inHg
Wind4.5 mph NW
Humidity60%
Visibility—
Dew point40°
Thu, 2261° / 39°0
61 °
Marcus, Thursday, 22 October
Clear. High 61°, low 39°.
Pressure30.47 inHg
Wind4.3 mph N
Humidity53%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2355° / 39°0.07
55 °
Marcus, Friday, 23 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.07 in
Chance of precipitation32%
Record high67° (1992)
Record low29° (2020)
Sat, 2454° / 38°0.06
54 °
Marcus, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.06 in
Chance of precipitation23%
Record high67° (1992)
Record low17° (2020)
Sun, 2553° / 37°0.07
53 °
Marcus, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.07 in
Chance of precipitation38%
Record high65° (1965)
Record low20° (2020)
Mon, 2651° / 37°0.06
51 °
Marcus, Monday, 26 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.06 in
Chance of precipitation30%
Record high66° (1965)
Record low21° (1996)
Tue, 2750° / 37°0.07
50 °
Marcus, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.07 in
Chance of precipitation40%
Record high65° (1965)
Record low24° (1970)
Wed, 2849° / 36°0.08
49 °
Marcus, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.08 in
Chance of precipitation38%
Record high62° (1983)
Record low14° (1991)
Thu, 2949° / 35°0.07
49 °
Marcus, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation33%
Record high64° (1987)
Record low9° (1991)
Fri, 3048° / 35°0.06
48 °
Marcus, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.06 in
Chance of precipitation28%
Record high63° (1987)
Record low14° (1972)
Sat, 3148° / 35°0.08
48 °
Marcus, 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 °
Marcus, 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 °
Marcus, 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 °
Marcus, 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 °
Marcus, 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 °
Marcus, 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)
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 Marcus, 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 Marcus, 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.