As of 09:31 MDT

Weather in Winchester, WY

39°Current weather

Winchester, Saturday, 17 October, 09:31

Overcast. Feels like 37°. High 72°, low 38°.

Pressure30.24 inHg
Wind3.4 mph SW
Humidity81%
Visibility6.2 mi
Dew point34°

Monthly outlook for Winchester, WY: average high 59.5°, average low 40.8°. That is 2.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 17 October (72.2°), the coolest 31 October (26.9°).

59.5°/40.8°
Average high / low
+2.6°
Above normal
2 / 3
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October65°57.1°+4.4°
27 October – 5 November50.3°50.1°+0.1°
6 November – 15 Novemberat normal45.2°—

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, 1867° / 37°0Clear
67 °Clear

Winchester, Sunday, 18 October

Clear. High 67°, low 37°.

Pressure30.06 inHg
Wind5 mph N
Humidity38%
Visibility6.2 mi
Dew point35°
Mon, 1967° / 43°0Clear
67 °Clear

Winchester, Monday, 19 October

Clear. High 67°, low 43°.

Pressure30.00 inHg
Wind3.7 mph S
Humidity45%
Visibility6.2 mi
Dew point39°
Tue, 2068° / 44°0Clear
68 °Clear

Winchester, Tuesday, 20 October

Clear. High 68°, low 44°.

Pressure30.00 inHg
Wind2.8 mph S
Humidity45%
Visibility6.2 mi
Dew point40°
Wed, 2168° / 45°0Clear
68 °Clear

Winchester, Wednesday, 21 October

Clear. High 68°, low 45°.

Pressure30.09 inHg
Wind4.7 mph NW
Humidity50%
Visibility—
Dew point40°
Thu, 2272° / 47°0Clear
72 °Clear

Winchester, Thursday, 22 October

Clear. High 72°, low 47°.

Pressure29.91 inHg
Wind6.4 mph SE
Humidity50%
Visibility—
Dew point44°
Fri, 2369° / 50°0.04Light rain
69 °Light rain

Winchester, Friday, 23 October

Light rain. High 69°, low 50°.

Pressure29.47 inHg
Wind31.9 mph NW
Humidity25%
Visibility—
Dew point28°
Sat, 2451° / 40°0.01Light rain
51 °Light rain

Winchester, Saturday, 24 October

Light rain. High 51°, low 40°.

Pressure30.09 inHg
Wind26.7 mph NW
Humidity61%
Visibility—
Dew point34°
Sun, 2563° / 46°0Overcast
63 °Overcast

Winchester, Sunday, 25 October

Overcast. High 63°, low 46°.

Pressure29.80 inHg
Wind9.8 mph S
Humidity35%
Visibility—
Dew point29°
Mon, 2654° / 46°0Overcast
54 °Overcast

Winchester, Monday, 26 October

Overcast. High 54°, low 46°.

Pressure29.71 inHg
Wind11 mph SW
Humidity23%
Visibility—
Dew point15°
Tue, 2763° / 43°0Partly cloudy
63 °Partly cloudy

Winchester, Tuesday, 27 October

Partly cloudy. High 63°, low 43°.

Pressure29.59 inHg
Wind28.6 mph W
Humidity27%
Visibility—
Dew point22°
Wed, 2851° / 41°0Clear
51 °Clear

Winchester, Wednesday, 28 October

Clear. High 51°, low 41°.

Pressure30.00 inHg
Wind32.8 mph W
Humidity17%
Visibility—
Dew point5°
Thu, 2958° / 42°0Overcast
58 °Overcast

Winchester, Thursday, 29 October

Overcast. High 58°, low 42°.

Pressure29.62 inHg
Wind16.6 mph SW
Humidity22%
Visibility—
Dew point16°
Fri, 3045° / 34°0.04Light snow
45 °Light snow

Winchester, Friday, 30 October

Light snow. High 45°, low 34°.

Pressure29.65 inHg
Wind28.3 mph NW
Humidity68%
Visibility—
Dew point25°
Sat, 3141° / 27°0Partly cloudy
41 °Partly cloudy

Winchester, Saturday, 31 October

Partly cloudy. High 41°, low 27°.

Pressure29.85 inHg
Wind8.1 mph W
Humidity43%
Visibility—
Dew point16°
Sun, 0144° / 30°0Overcast
44 °Overcast

Winchester, Sunday, 1 November

Overcast. High 44°, low 30°.

Pressure29.91 inHg
Wind5.8 mph SE
Humidity44%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0248° / 29°0.04Climate normal
48 °Climate normal

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°0.02Climate normal
48 °Climate normal

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°0.02Climate normal
49 °Climate normal

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°0.03Climate normal
49 °Climate normal

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°0.05Climate normal
49 °Climate normal

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°0.02Climate normal
49 °Climate normal

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°0.05Climate normal
47 °Climate normal

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°0.05Climate normal
45 °Climate normal

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°0.04Climate normal
44 °Climate normal

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°0.02Climate normal
43 °Climate normal

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°0.03Climate normal
44 °Climate normal

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°0.03Climate normal
44 °Climate normal

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°0.04Climate normal
44 °Climate normal

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°0.02Climate normal
43 °Climate normal

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.