Monthly outlook for Winchester, WY: average high 60.1°, average low 42°. That is 2.3° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 21 October (72.6°), the coolest 25 October (33.9°).
60.1°/42°
Average high / low
+2.3°
Above normal
0 / 3
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
62°
57.8°
+2.3°
25 October – 3 November
56.8°
51.2°
+3.1°
4 November – 13 November
at normal
46.4°
—
October records over 66 years
87.1°1 October 2011All-time high
-4.4°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Airport Road (10 mi).
Fri, 1659° / 34°0
59 °
Winchester, Friday, 16 October
Clear. High 59°, low 34°.
Pressure30.56 inHg
Wind4.8 mph SE
Humidity47%
Visibility6.2 mi
Dew point32°
Sat, 1769° / 38°0
69 °
Winchester, Saturday, 17 October
Partly cloudy. High 69°, low 38°.
Pressure30.15 inHg
Wind5.4 mph S
Humidity46%
Visibility6.2 mi
Dew point38°
Sun, 1866° / 43°0
66 °
Winchester, Sunday, 18 October
Clear. High 66°, low 43°.
Pressure30.09 inHg
Wind1.8 mph N
Humidity43%
Visibility6.2 mi
Dew point37°
Mon, 1967° / 43°0
67 °
Winchester, Monday, 19 October
Clear. High 67°, low 43°.
Pressure30.00 inHg
Wind4.7 mph E
Humidity47%
Visibility—
Dew point38°
Tue, 2068° / 44°0
68 °
Winchester, Tuesday, 20 October
Clear. High 68°, low 44°.
Pressure29.94 inHg
Wind4.1 mph E
Humidity48%
Visibility—
Dew point40°
Wed, 2173° / 52°0
73 °
Winchester, Wednesday, 21 October
Clear. High 73°, low 52°.
Pressure29.74 inHg
Wind12.8 mph SW
Humidity43%
Visibility—
Dew point41°
Thu, 2267° / 56°0
67 °
Winchester, Thursday, 22 October
Clear. High 67°, low 56°.
Pressure29.65 inHg
Wind20 mph NW
Humidity27%
Visibility—
Dew point29°
Fri, 2352° / 41°0
52 °
Winchester, Friday, 23 October
Overcast. High 52°, low 41°.
Pressure29.83 inHg
Wind31.4 mph N
Humidity31%
Visibility—
Dew point21°
Sat, 2447° / 37°0
47 °
Winchester, Saturday, 24 October
Partly cloudy. High 47°, low 37°.
Pressure30.50 inHg
Wind30.4 mph N
Humidity23%
Visibility—
Dew point7°
Sun, 2550° / 34°0
50 °
Winchester, Sunday, 25 October
Overcast. High 50°, low 34°.
Pressure30.33 inHg
Wind5.6 mph NE
Humidity29%
Visibility—
Dew point13°
Mon, 2649° / 39°0
49 °
Winchester, Monday, 26 October
Overcast. High 49°, low 39°.
Pressure30.39 inHg
Wind15.5 mph N
Humidity49%
Visibility—
Dew point28°
Tue, 2755° / 38°0
55 °
Winchester, Tuesday, 27 October
Overcast. High 55°, low 38°.
Pressure30.15 inHg
Wind2.6 mph S
Humidity39%
Visibility—
Dew point24°
Wed, 2861° / 43°0
61 °
Winchester, Wednesday, 28 October
Overcast. High 61°, low 43°.
Pressure29.94 inHg
Wind3 mph NE
Humidity28%
Visibility—
Dew point21°
Thu, 2961° / 46°0
61 °
Winchester, Thursday, 29 October
Overcast. High 61°, low 46°.
Pressure30.09 inHg
Wind5.2 mph NE
Humidity37%
Visibility—
Dew point30°
Fri, 3064° / 43°0
64 °
Winchester, Friday, 30 October
Overcast. High 64°, low 43°.
Pressure30.18 inHg
Wind6.5 mph S
Humidity47%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3150° / 29°0.04
50 °
Winchester, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low29°
Average precipitation0.04 in
Chance of precipitation25%
Record high69° (1999)
Record low-4° (1991)
Sun, 0149° / 29°0.05
49 °
Winchester, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low29°
Average precipitation0.05 in
Chance of precipitation23%
Record high73° (2014)
Record low1° (1971)
Mon, 0248° / 29°0.04
48 °
Winchester, Monday, 2 November
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.04 in
Chance of precipitation20%
Record high67° (2008)
Record low-10° (1991)
Tue, 0348° / 28°0.02
48 °
Winchester, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low28°
Average precipitation0.02 in
Chance of precipitation8%
Record high65° (2020)
Record low-11° (1991)
Wed, 0449° / 28°0.02
49 °
Winchester, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low28°
Average precipitation0.02 in
Chance of precipitation13%
Record high69° (1999)
Record low-2° (1973)
Thu, 0549° / 29°0.03
49 °
Winchester, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low29°
Average precipitation0.03 in
Chance of precipitation15%
Record high68° (1977)
Record low-4° (1973)
Fri, 0649° / 28°0.05
49 °
Winchester, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low28°
Average precipitation0.05 in
Chance of precipitation17%
Record high71° (2010)
Record low2° (1971)
Sat, 0749° / 28°0.02
49 °
Winchester, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low28°
Average precipitation0.02 in
Chance of precipitation15%
Record high68° (2012)
Record low3° (1990)
Sun, 0847° / 27°0.05
47 °
Winchester, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.05 in
Chance of precipitation23%
Record high69° (1999)
Record low4° (1986)
Mon, 0945° / 26°0.05
45 °
Winchester, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.05 in
Chance of precipitation23%
Record high64° (2016)
Record low2° (1960)
Tue, 1044° / 25°0.04
44 °
Winchester, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.04 in
Chance of precipitation22%
Record high65° (2007)
Record low-10° (1986)
Wed, 1143° / 24°0.02
43 °
Winchester, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high43°
Average low24°
Average precipitation0.02 in
Chance of precipitation20%
Record high64° (1999)
Record low-3° (1986)
Thu, 1244° / 24°0.03
44 °
Winchester, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low24°
Average precipitation0.03 in
Chance of precipitation18%
Record high67° (1999)
Record low-10° (2014)
Fri, 1344° / 25°0.03
44 °
Winchester, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.03 in
Chance of precipitation22%
Record high65° (2025)
Record low-11° (2014)
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 Winchester, WY 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 Winchester, WY 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.