As of 01:57 MDT

Weather in Guernsey, WY

39°Current weather

Guernsey, Friday, 16 October, 01:57

Clear. Feels like 34°. High 53°, low 29°.

Pressure30.83 inHg
Wind7.1 mph NW
Humidity74%
Visibility6.2 mi
Dew point31°

Monthly outlook for Guernsey, WY: average high 59°, average low 39.3°. That is 0° above the climate normal for October. Precipitation is expected on 3 days (about 1.7 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 17 October (75°), the coolest 16 October (29.4°).

59°/39.3°
Average high / low
+0°
Above normal
3 / 3
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October61.9°61.1°+0.4°
26 October – 4 November54.3°54.2°+0°
5 November – 14 Novemberat normal51°—

October records over 66 years

87.6°2 October 2024All-time high
-11.7°30 October 2019All-time low
Sat, 1775° / 38°0Clear
75 °Clear

Guernsey, Saturday, 17 October

Clear. High 75°, low 38°.

Pressure30.12 inHg
Wind3.3 mph S
Humidity26%
Visibility6.2 mi
Dew point29°
Sun, 1865° / 41°0Overcast
65 °Overcast

Guernsey, Sunday, 18 October

Overcast. High 65°, low 41°.

Pressure30.06 inHg
Wind7.3 mph N
Humidity35%
Visibility6.2 mi
Dew point35°
Mon, 1970° / 42°0Clear
70 °Clear

Guernsey, Monday, 19 October

Clear. High 70°, low 42°.

Pressure29.97 inHg
Wind5.3 mph S
Humidity38%
Visibility6.2 mi
Dew point38°
Tue, 2070° / 43°0Clear
70 °Clear

Guernsey, Tuesday, 20 October

Clear. High 70°, low 43°.

Pressure29.88 inHg
Wind6.6 mph S
Humidity46%
Visibility—
Dew point40°
Wed, 2172° / 45°0Mostly clear
72 °Mostly clear

Guernsey, Wednesday, 21 October

Mostly clear. High 72°, low 45°.

Pressure29.97 inHg
Wind8.3 mph SE
Humidity40%
Visibility—
Dew point40°
Thu, 2270° / 52°0Overcast
70 °Overcast

Guernsey, Thursday, 22 October

Overcast. High 70°, low 52°.

Pressure29.83 inHg
Wind11 mph SE
Humidity43%
Visibility—
Dew point42°
Fri, 2358° / 40°1.06Heavy rain
58 °Heavy rain

Guernsey, Friday, 23 October

Heavy rain. High 58°, low 40°.

Pressure29.53 inHg
Wind25.5 mph NW
Humidity85%
Visibility—
Dew point46°
Sat, 2439° / 34°0.03Snow
39 °Snow

Guernsey, Saturday, 24 October

Snow. High 39°, low 34°.

Pressure30.39 inHg
Wind19.2 mph NW
Humidity73%
Visibility—
Dew point28°
Sun, 2547° / 32°0Overcast
47 °Overcast

Guernsey, Sunday, 25 October

Overcast. High 47°, low 32°.

Pressure30.39 inHg
Wind6 mph S
Humidity41%
Visibility—
Dew point19°
Mon, 2651° / 33°0.08Light rain
51 °Light rain

Guernsey, Monday, 26 October

Light rain. High 51°, low 33°.

Pressure29.94 inHg
Wind4.3 mph S
Humidity32%
Visibility—
Dew point17°
Tue, 2742° / 32°0.5Snow
42 °Snow

Guernsey, Tuesday, 27 October

Snow. High 42°, low 32°.

Pressure29.94 inHg
Wind11.2 mph N
Humidity99%
Visibility—
Dew point37°
Wed, 2857° / 32°0Overcast
57 °Overcast

Guernsey, Wednesday, 28 October

Overcast. High 57°, low 32°.

Pressure29.80 inHg
Wind20 mph W
Humidity34%
Visibility—
Dew point22°
Thu, 2958° / 44°0Overcast
58 °Overcast

Guernsey, Thursday, 29 October

Overcast. High 58°, low 44°.

Pressure30.00 inHg
Wind19.4 mph W
Humidity40%
Visibility—
Dew point29°
Fri, 3065° / 46°0Partly cloudy
65 °Partly cloudy

Guernsey, Friday, 30 October

Partly cloudy. High 65°, low 46°.

Pressure29.91 inHg
Wind19.7 mph W
Humidity27%
Visibility—
Dew point26°
Sat, 3152° / 46°0Mostly clear
52 °Mostly clear

Guernsey, Saturday, 31 October

Mostly clear. High 52°, low 46°.

Pressure30.03 inHg
Wind12.7 mph W
Humidity46%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0152° / 33°0.04Climate normal
52 °Climate normal

Guernsey, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high52°
Average low33°
Average precipitation0.04 in
Chance of precipitation15%
Record high75° (1988)
Record low6° (1991)
Mon, 0252° / 32°0.04Climate normal
52 °Climate normal

Guernsey, Monday, 2 November

Climate normal for this date — 60-year average.

Average high52°
Average low32°
Average precipitation0.04 in
Chance of precipitation13%
Record high76° (2008)
Record low-4° (1991)
Tue, 0352° / 31°0.04Climate normal
52 °Climate normal

Guernsey, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high52°
Average low31°
Average precipitation0.04 in
Chance of precipitation20%
Record high70° (2020)
Record low-3° (1991)
Wed, 0454° / 31°0.01Climate normal
54 °Climate normal

Guernsey, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high54°
Average low31°
Average precipitation0.01 in
Chance of precipitation10%
Record high74° (1983)
Record low5° (1967)
Thu, 0554° / 32°0.02Climate normal
54 °Climate normal

Guernsey, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high54°
Average low32°
Average precipitation0.02 in
Chance of precipitation8%
Record high74° (2001)
Record low-1° (1967)
Fri, 0653° / 32°0.02Climate normal
53 °Climate normal

Guernsey, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°
Average low32°
Average precipitation0.02 in
Chance of precipitation13%
Record high75° (2010)
Record low0° (1971)
Sat, 0754° / 32°0.01Climate normal
54 °Climate normal

Guernsey, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high54°
Average low32°
Average precipitation0.01 in
Chance of precipitation8%
Record high76° (1999)
Record low5° (1990)
Sun, 0852° / 32°0.04Climate normal
52 °Climate normal

Guernsey, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high52°
Average low32°
Average precipitation0.04 in
Chance of precipitation20%
Record high76° (1999)
Record low15° (1990)
Mon, 0950° / 30°0.03Climate normal
50 °Climate normal

Guernsey, Monday, 9 November

Climate normal for this date — 60-year average.

Average high50°
Average low30°
Average precipitation0.03 in
Chance of precipitation20%
Record high72° (2016)
Record low7° (1960)
Tue, 1050° / 29°0.02Climate normal
50 °Climate normal

Guernsey, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high50°
Average low29°
Average precipitation0.02 in
Chance of precipitation20%
Record high74° (2005)
Record low1° (1986)
Wed, 1148° / 29°0.03Climate normal
48 °Climate normal

Guernsey, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high72° (2005)
Record low6° (1986)
Thu, 1250° / 29°0.04Climate normal
50 °Climate normal

Guernsey, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high50°
Average low29°
Average precipitation0.04 in
Chance of precipitation12%
Record high75° (1999)
Record low-10° (2000)
Fri, 1350° / 30°0.04Climate normal
50 °Climate normal

Guernsey, Friday, 13 November

Climate normal for this date — 60-year average.

Average high50°
Average low30°
Average precipitation0.04 in
Chance of precipitation17%
Record high74° (1999)
Record low-5° (2000)
Sat, 1449° / 29°0.02Climate normal
49 °Climate normal

Guernsey, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high49°
Average low29°
Average precipitation0.02 in
Chance of precipitation15%
Record high71° (2025)
Record low2° (2000)

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 Guernsey, 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 Guernsey, 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.