Monthly outlook for Winthrop, WA: average high 55.8°, average low 38.1°. That is 0.9° below the climate normal for October. Precipitation is expected on 4 days (about 0.4 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 17 October (65.4°), the coolest 12 October (29.3°).
55.8°/38.1°
Average high / low
−0.9°
Below normal
4 / 4
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
58.2°
59°
-0.4°
19 October – 28 October
51.7°
53°
-0.7°
29 October – 7 November
at normal
46.6°
—
October records over 66 years
84.4°1 October 1992All-time high
-3.3°31 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Twisp (8 mi).
Sat, 1055° / 35°0.05
55 °
Winthrop, Saturday, 10 October
Light rain. High 55°, low 35°.
Pressure29.83 inHg
Wind4.2 mph NW
Humidity60%
Visibility6.2 mi
Dew point29°
Sun, 1153° / 34°0
53 °
Winthrop, Sunday, 11 October
Light rain. High 53°, low 34°.
Pressure30.00 inHg
Wind1.7 mph SE
Humidity46%
Visibility6.2 mi
Dew point25°
Mon, 1254° / 29°0
54 °
Winthrop, Monday, 12 October
Clear. High 54°, low 29°.
Pressure30.03 inHg
Wind2.6 mph SE
Humidity44%
Visibility6.2 mi
Dew point24°
Tue, 1355° / 33°0
55 °
Winthrop, Tuesday, 13 October
Mostly clear. High 55°, low 33°.
Pressure30.12 inHg
Wind2.4 mph S
Humidity46%
Visibility6.2 mi
Dew point27°
Wed, 1461° / 36°0
61 °
Winthrop, Wednesday, 14 October
Clear. High 61°, low 36°.
Pressure30.18 inHg
Wind4.7 mph SE
Humidity49%
Visibility—
Dew point34°
Thu, 1562° / 38°0
62 °
Winthrop, Thursday, 15 October
Overcast. High 62°, low 38°.
Pressure30.33 inHg
Wind5.6 mph SE
Humidity50%
Visibility—
Dew point35°
Fri, 1661° / 43°0
61 °
Winthrop, Friday, 16 October
Partly cloudy. High 61°, low 43°.
Pressure30.42 inHg
Wind7 mph SE
Humidity43%
Visibility—
Dew point31°
Sat, 1765° / 44°0
65 °
Winthrop, Saturday, 17 October
Overcast. High 65°, low 44°.
Pressure30.06 inHg
Wind5 mph NW
Humidity39%
Visibility—
Dew point32°
Sun, 1858° / 45°0.01
58 °
Winthrop, Sunday, 18 October
Light rain. High 58°, low 45°.
Pressure29.97 inHg
Wind4.8 mph NW
Humidity49%
Visibility—
Dew point35°
Mon, 1956° / 42°0
56 °
Winthrop, Monday, 19 October
Partly cloudy. High 56°, low 42°.
Pressure29.94 inHg
Wind6 mph S
Humidity53%
Visibility—
Dew point36°
Tue, 2056° / 40°0.01
56 °
Winthrop, Tuesday, 20 October
Light rain. High 56°, low 40°.
Pressure29.88 inHg
Wind9.3 mph W
Humidity50%
Visibility—
Dew point33°
Wed, 2142° / 40°0.2
42 °
Winthrop, Wednesday, 21 October
Snow. High 42°, low 40°.
Pressure30.06 inHg
Wind5.8 mph SE
Humidity98%
Visibility—
Dew point40°
Thu, 2250° / 35°0.06
50 °
Winthrop, Thursday, 22 October
Snow. High 50°, low 35°.
Pressure30.12 inHg
Wind6 mph NW
Humidity67%
Visibility—
Dew point34°
Fri, 2351° / 34°0
51 °
Winthrop, Friday, 23 October
Overcast. High 51°, low 34°.
Pressure30.45 inHg
Wind5.7 mph NW
Humidity61%
Visibility—
Dew point31°
Sat, 2454° / 37°0
54 °
Winthrop, Saturday, 24 October
Overcast. High 54°, low 37°.
Pressure30.47 inHg
Wind3 mph NW
Humidity61%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2552° / 35°0.11
52 °
Winthrop, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.11 in
Chance of precipitation40%
Record high65° (1965)
Record low6° (2020)
Mon, 2651° / 33°0.11
51 °
Winthrop, Monday, 26 October
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.11 in
Chance of precipitation35%
Record high67° (1965)
Record low6° (1970)
Tue, 2750° / 34°0.09
50 °
Winthrop, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.09 in
Chance of precipitation30%
Record high62° (1965)
Record low3° (1970)
Wed, 2849° / 34°0.11
49 °
Winthrop, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.11 in
Chance of precipitation45%
Record high64° (1987)
Record low15° (1971)
Thu, 2949° / 32°0.07
49 °
Winthrop, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.07 in
Chance of precipitation35%
Record high67° (1987)
Record low7° (1991)
Fri, 3048° / 32°0.07
48 °
Winthrop, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.07 in
Chance of precipitation43%
Record high63° (1962)
Record low3° (1972)
Sat, 3148° / 33°0.14
48 °
Winthrop, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.14 in
Chance of precipitation43%
Record high62° (2017)
Record low-3° (1984)
Sun, 0147° / 32°0.14
47 °
Winthrop, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.14 in
Chance of precipitation43%
Record high58° (1962)
Record low14° (1971)
Mon, 0247° / 31°0.09
47 °
Winthrop, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.09 in
Chance of precipitation35%
Record high61° (1987)
Record low7° (1961)
Tue, 0347° / 32°0.09
47 °
Winthrop, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.09 in
Chance of precipitation43%
Record high57° (1987)
Record low10° (1994)
Wed, 0447° / 33°0.15
47 °
Winthrop, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.15 in
Chance of precipitation50%
Record high58° (1987)
Record low10° (1961)
Thu, 0545° / 31°0.11
45 °
Winthrop, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.11 in
Chance of precipitation42%
Record high57° (2012)
Record low5° (1971)
Fri, 0645° / 31°0.17
45 °
Winthrop, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.17 in
Chance of precipitation52%
Record high58° (1987)
Record low9° (1971)
Sat, 0745° / 31°0.13
45 °
Winthrop, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.13 in
Chance of precipitation35%
Record high55° (1997)
Record low17° (1982)
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 Winthrop, 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 Winthrop, 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.