As of 18:24 MDT

Weather in Islay, WY

70°Current weather

Islay, Thursday, 8 October, 18:24

Overcast. Feels like 67°. High 77°, low 47°.

Pressure29.85 inHg
Wind12 mph S
Humidity24%
Visibility6.2 mi
Dew point31°

Monthly outlook for Islay, WY: average high 62.4°, average low 42°. That is 3.4° above the climate normal for October. Precipitation is expected on 5 days (about 0.5 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 9 October (78.5°), the coolest 16 October (24.1°).

62.4°/42°
Average high / low
+3.4°
Above normal
5 / 4
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 October – 17 October62.2°57°+2.9°
18 October – 27 October62.7°54°+4.8°
28 October – 6 Novemberat normal47.3°—

October records over 66 years

80.6°2 October 2024All-time high
-5.1°26 October 2020All-time low
Fri, 0978° / 46°0Clear
78 °Clear

Islay, Friday, 9 October

Clear. High 78°, low 46°.

Pressure29.83 inHg
Wind11.9 mph SW
Humidity19%
Visibility6.2 mi
Dew point25°
Sat, 1075° / 50°0.06Light rain
75 °Light rain

Islay, Saturday, 10 October

Light rain. High 75°, low 50°.

Pressure29.65 inHg
Wind15.9 mph SW
Humidity21%
Visibility6.2 mi
Dew point28°
Sun, 1171° / 56°0.05Light rain
71 °Light rain

Islay, Sunday, 11 October

Light rain. High 71°, low 56°.

Pressure29.71 inHg
Wind14 mph SW
Humidity29%
Visibility6.2 mi
Dew point35°
Mon, 1268° / 46°0.09Light rain
68 °Light rain

Islay, Monday, 12 October

Light rain. High 68°, low 46°.

Pressure29.77 inHg
Wind9.5 mph S
Humidity42%
Visibility6.2 mi
Dew point43°
Tue, 1359° / 48°0.05Light rain
59 °Light rain

Islay, Tuesday, 13 October

Light rain. High 59°, low 48°.

Pressure29.88 inHg
Wind13.8 mph SE
Humidity58%
Visibility—
Dew point43°
Wed, 1455° / 44°0.17Rain
55 °Rain

Islay, Wednesday, 14 October

Rain. High 55°, low 44°.

Pressure29.62 inHg
Wind36.7 mph W
Humidity45%
Visibility—
Dew point29°
Thu, 1547° / 34°0.04Snow
47 °Snow

Islay, Thursday, 15 October

Snow. High 47°, low 34°.

Pressure30.06 inHg
Wind21.1 mph SW
Humidity32%
Visibility—
Dew point17°
Fri, 1641° / 24°0Light snow
41 °Light snow

Islay, Friday, 16 October

Light snow. High 41°, low 24°.

Pressure30.59 inHg
Wind17.2 mph SE
Humidity61%
Visibility—
Dew point21°
Sat, 1751° / 27°0Clear
51 °Clear

Islay, Saturday, 17 October

Clear. High 51°, low 27°.

Pressure30.39 inHg
Wind18.6 mph S
Humidity48%
Visibility—
Dew point25°
Sun, 1866° / 38°0Clear
66 °Clear

Islay, Sunday, 18 October

Clear. High 66°, low 38°.

Pressure30.00 inHg
Wind17.4 mph W
Humidity28%
Visibility—
Dew point27°
Mon, 1954° / 42°0Partly cloudy
54 °Partly cloudy

Islay, Monday, 19 October

Partly cloudy. High 54°, low 42°.

Pressure30.00 inHg
Wind34.2 mph W
Humidity30%
Visibility—
Dew point21°
Tue, 2058° / 39°0Clear
58 °Clear

Islay, Tuesday, 20 October

Clear. High 58°, low 39°.

Pressure30.09 inHg
Wind20.7 mph W
Humidity28%
Visibility—
Dew point20°
Wed, 2165° / 42°0Clear
65 °Clear

Islay, Wednesday, 21 October

Clear. High 65°, low 42°.

Pressure30.09 inHg
Wind16.1 mph W
Humidity14%
Visibility—
Dew point9°
Thu, 2265° / 43°0Overcast
65 °Overcast

Islay, Thursday, 22 October

Overcast. High 65°, low 43°.

Pressure30.09 inHg
Wind12.9 mph W
Humidity17%
Visibility—
Dew point14°
Fri, 2368° / 46°0Clear
68 °Clear

Islay, Friday, 23 October

Clear. High 68°, low 46°.

Pressure30.00 inHg
Wind12.8 mph W
Humidity17%
Visibility—
Dew point17°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2453° / 32°0.06Climate normal
53 °Climate normal

Islay, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high53°
Average low32°
Average precipitation0.06 in
Chance of precipitation18%
Record high70° (2014)
Record low15° (1975)
Sun, 2554° / 32°0.04Climate normal
54 °Climate normal

Islay, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high54°
Average low32°
Average precipitation0.04 in
Chance of precipitation18%
Record high70° (2014)
Record low2° (2020)
Mon, 2652° / 32°0.05Climate normal
52 °Climate normal

Islay, Monday, 26 October

Climate normal for this date — 60-year average.

Average high52°
Average low32°
Average precipitation0.05 in
Chance of precipitation22%
Record high71° (1977)
Record low-5° (2020)
Tue, 2750° / 31°0.02Climate normal
50 °Climate normal

Islay, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high50°
Average low31°
Average precipitation0.02 in
Chance of precipitation18%
Record high73° (2016)
Record low-1° (2011)
Wed, 2851° / 30°0.05Climate normal
51 °Climate normal

Islay, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high51°
Average low30°
Average precipitation0.05 in
Chance of precipitation18%
Record high70° (2024)
Record low1° (2019)
Thu, 2950° / 31°0.06Climate normal
50 °Climate normal

Islay, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high50°
Average low31°
Average precipitation0.06 in
Chance of precipitation27%
Record high70° (1968)
Record low-3° (2019)
Fri, 3047° / 29°0.04Climate normal
47 °Climate normal

Islay, Friday, 30 October

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.04 in
Chance of precipitation23%
Record high67° (1968)
Record low-5° (2019)
Sat, 3146° / 29°0.05Climate normal
46 °Climate normal

Islay, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high46°
Average low29°
Average precipitation0.05 in
Chance of precipitation30%
Record high68° (2008)
Record low-2° (1991)
Sun, 0146° / 28°0.06Climate normal
46 °Climate normal

Islay, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high46°
Average low28°
Average precipitation0.06 in
Chance of precipitation28%
Record high65° (1988)
Record low2° (1991)
Mon, 0246° / 27°0.06Climate normal
46 °Climate normal

Islay, Monday, 2 November

Climate normal for this date — 60-year average.

Average high46°
Average low27°
Average precipitation0.06 in
Chance of precipitation27%
Record high67° (2025)
Record low-7° (1995)
Tue, 0346° / 26°0.05Climate normal
46 °Climate normal

Islay, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high46°
Average low26°
Average precipitation0.05 in
Chance of precipitation22%
Record high66° (2020)
Record low-8° (1967)
Wed, 0447° / 27°0.02Climate normal
47 °Climate normal

Islay, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high47°
Average low27°
Average precipitation0.02 in
Chance of precipitation12%
Record high65° (2001)
Record low1° (1990)
Thu, 0547° / 28°0.03Climate normal
47 °Climate normal

Islay, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high47°
Average low28°
Average precipitation0.03 in
Chance of precipitation18%
Record high66° (1975)
Record low-7° (1967)
Fri, 0647° / 29°0.02Climate normal
47 °Climate normal

Islay, Friday, 6 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.02 in
Chance of precipitation18%
Record high68° (2020)
Record low0° (1961)

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 Islay, 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 Islay, 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.