Monthly outlook for Winchester, WY: average high 62.4°, average low 41.1°. That is 4.2° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 17 October (73.3°), the coolest 25 October (35.5°).
62.4°/41.1°
Average high / low
+4.2°
Above normal
2 / 3
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
64.2°
57.1°
+3.9°
27 October – 5 November
59.4°
50.1°
+5.1°
6 November – 15 November
at normal
45.2°
—
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).
Sun, 1868° / 37°0
68 °
Winchester, Sunday, 18 October
Mostly clear. High 68°, low 37°.
Pressure30.06 inHg
Wind4.6 mph N
Humidity38%
Visibility6.2 mi
Dew point34°
Mon, 1968° / 36°0
68 °
Winchester, Monday, 19 October
Clear. High 68°, low 36°.
Pressure30.03 inHg
Wind3.8 mph S
Humidity45%
Visibility6.2 mi
Dew point39°
Tue, 2069° / 45°0
69 °
Winchester, Tuesday, 20 October
Clear. High 69°, low 45°.
Pressure30.00 inHg
Wind2.2 mph SW
Humidity44%
Visibility6.2 mi
Dew point41°
Wed, 2168° / 46°0
68 °
Winchester, Wednesday, 21 October
Clear. High 68°, low 46°.
Pressure30.09 inHg
Wind2.1 mph SE
Humidity53%
Visibility6.2 mi
Dew point43°
Thu, 2273° / 48°0
73 °
Winchester, Thursday, 22 October
Partly cloudy. High 73°, low 48°.
Pressure29.88 inHg
Wind12.4 mph S
Humidity47%
Visibility—
Dew point43°
Fri, 2361° / 38°0.02
61 °
Winchester, Friday, 23 October
Light rain. High 61°, low 38°.
Pressure29.62 inHg
Wind18.8 mph NW
Humidity55%
Visibility—
Dew point44°
Sat, 2445° / 36°0.19
45 °
Winchester, Saturday, 24 October
Snow. High 45°, low 36°.
Pressure30.53 inHg
Wind21.2 mph NW
Humidity41%
Visibility—
Dew point19°
Sun, 2555° / 35°0
55 °
Winchester, Sunday, 25 October
Clear. High 55°, low 35°.
Pressure30.36 inHg
Wind6.2 mph S
Humidity38%
Visibility—
Dew point22°
Mon, 2662° / 41°0
62 °
Winchester, Monday, 26 October
Clear. High 62°, low 41°.
Pressure30.00 inHg
Wind7.2 mph S
Humidity26%
Visibility—
Dew point19°
Tue, 2762° / 45°0
62 °
Winchester, Tuesday, 27 October
Overcast. High 62°, low 45°.
Pressure29.77 inHg
Wind6.7 mph NE
Humidity31%
Visibility—
Dew point25°
Wed, 2861° / 46°0
61 °
Winchester, Wednesday, 28 October
Overcast. High 61°, low 46°.
Pressure29.65 inHg
Wind17.4 mph NW
Humidity31%
Visibility—
Dew point25°
Thu, 2956° / 46°0.02
56 °
Winchester, Thursday, 29 October
Light rain. High 56°, low 46°.
Pressure29.85 inHg
Wind6.3 mph NE
Humidity53%
Visibility—
Dew point35°
Fri, 3060° / 42°0
60 °
Winchester, Friday, 30 October
Mostly clear. High 60°, low 42°.
Pressure29.62 inHg
Wind20.2 mph S
Humidity26%
Visibility—
Dew point20°
Sat, 3152° / 38°0.04
52 °
Winchester, Saturday, 31 October
Snow. High 52°, low 38°.
Pressure29.68 inHg
Wind17.1 mph NW
Humidity36%
Visibility—
Dew point19°
Sun, 0165° / 41°0
65 °
Winchester, Sunday, 1 November
Mostly clear. High 65°, low 41°.
Pressure29.68 inHg
Wind24.3 mph SW
Humidity30%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 1444° / 25°0.04
44 °
Winchester, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.04 in
Chance of precipitation12%
Record high69° (2025)
Record low-2° (1978)
Sun, 1543° / 24°0.02
43 °
Winchester, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high43°
Average low24°
Average precipitation0.02 in
Chance of precipitation12%
Record high67° (2016)
Record low-10° (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.