As of 12:05 MDT

Weather in Illco, WY

45°Current weather

Illco, Thursday, 15 October, 12:05

Overcast. Feels like 41°. High 47°, low 33°.

Pressure30.53 inHg
Wind6.9 mph N
Humidity66%
Visibility6.2 mi
Dew point34°

Monthly outlook for Illco, WY: average high 57.1°, average low 39.5°. That is 1.6° above the climate normal for October. Precipitation is expected on 3 days (about 0.2 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 21 October (69.6°), the coolest 16 October (28°).

57.1°/39.5°
Average high / low
+1.6°
Above normal
3 / 3
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October60°56°+2.2°
25 October – 3 November52.2°49.2°+1.6°
4 November – 13 Novemberat normal45.4°—

October records over 66 years

83.7°4 October 2024All-time high
-14.1°31 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Bar Nunn (10 mi).

Fri, 1656° / 28°0Clear
56 °Clear

Illco, Friday, 16 October

Clear. High 56°, low 28°.

Pressure30.62 inHg
Wind14.9 mph SW
Humidity51%
Visibility6.2 mi
Dew point28°
Sat, 1765° / 39°0Clear
65 °Clear

Illco, Saturday, 17 October

Clear. High 65°, low 39°.

Pressure30.21 inHg
Wind19.1 mph SW
Humidity39%
Visibility6.2 mi
Dew point33°
Sun, 1862° / 39°0Clear
62 °Clear

Illco, Sunday, 18 October

Clear. High 62°, low 39°.

Pressure30.06 inHg
Wind3.2 mph S
Humidity41%
Visibility6.2 mi
Dew point34°
Mon, 1964° / 42°0Clear
64 °Clear

Illco, Monday, 19 October

Clear. High 64°, low 42°.

Pressure30.00 inHg
Wind14.5 mph SW
Humidity49%
Visibility6.2 mi
Dew point40°
Tue, 2066° / 45°0Clear
66 °Clear

Illco, Tuesday, 20 October

Clear. High 66°, low 45°.

Pressure30.00 inHg
Wind14.9 mph SW
Humidity53%
Visibility—
Dew point42°
Wed, 2170° / 49°0Clear
70 °Clear

Illco, Wednesday, 21 October

Clear. High 70°, low 49°.

Pressure29.80 inHg
Wind27.3 mph SW
Humidity28%
Visibility—
Dew point31°
Thu, 2263° / 53°0Clear
63 °Clear

Illco, Thursday, 22 October

Clear. High 63°, low 53°.

Pressure29.77 inHg
Wind20.1 mph SW
Humidity38%
Visibility—
Dew point35°
Fri, 2352° / 42°0Overcast
52 °Overcast

Illco, Friday, 23 October

Overcast. High 52°, low 42°.

Pressure29.94 inHg
Wind21.8 mph N
Humidity50%
Visibility—
Dew point30°
Sat, 2454° / 37°0.1Light rain
54 °Light rain

Illco, Saturday, 24 October

Light rain. High 54°, low 37°.

Pressure30.21 inHg
Wind16.6 mph SW
Humidity31%
Visibility—
Dew point17°
Sun, 2567° / 36°0Overcast
67 °Overcast

Illco, Sunday, 25 October

Overcast. High 67°, low 36°.

Pressure29.97 inHg
Wind21.4 mph SW
Humidity40%
Visibility—
Dew point26°
Mon, 2653° / 41°0Overcast
53 °Overcast

Illco, Monday, 26 October

Overcast. High 53°, low 41°.

Pressure29.94 inHg
Wind21.3 mph NE
Humidity59%
Visibility—
Dew point31°
Tue, 2749° / 41°0.09Light rain
49 °Light rain

Illco, Tuesday, 27 October

Light rain. High 49°, low 41°.

Pressure29.80 inHg
Wind21.8 mph SW
Humidity23%
Visibility—
Dew point10°
Wed, 2850° / 38°0Overcast
50 °Overcast

Illco, Wednesday, 28 October

Overcast. High 50°, low 38°.

Pressure29.71 inHg
Wind32.6 mph SW
Humidity38%
Visibility—
Dew point20°
Thu, 2953° / 37°0Light rain
53 °Light rain

Illco, Thursday, 29 October

Light rain. High 53°, low 37°.

Pressure29.74 inHg
Wind24.1 mph SW
Humidity34%
Visibility—
Dew point20°
Fri, 3041° / 33°0Overcast
41 °Overcast

Illco, Friday, 30 October

Overcast. High 41°, low 33°.

Pressure30.18 inHg
Wind26.4 mph W
Humidity23%
Visibility—
Dew point4°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3147° / 28°0.05Climate normal
47 °Climate normal

Illco, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high47°
Average low28°
Average precipitation0.05 in
Chance of precipitation25%
Record high67° (2014)
Record low-14° (1991)
Sun, 0147° / 27°0.05Climate normal
47 °Climate normal

Illco, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high47°
Average low27°
Average precipitation0.05 in
Chance of precipitation23%
Record high68° (2014)
Record low-9° (2002)
Mon, 0246° / 26°0.04Climate normal
46 °Climate normal

Illco, Monday, 2 November

Climate normal for this date — 60-year average.

Average high46°
Average low26°
Average precipitation0.04 in
Chance of precipitation20%
Record high68° (2025)
Record low-20° (1991)
Tue, 0346° / 26°0.04Climate normal
46 °Climate normal

Illco, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high46°
Average low26°
Average precipitation0.04 in
Chance of precipitation18%
Record high67° (2015)
Record low-16° (1991)
Wed, 0447° / 26°0.01Climate normal
47 °Climate normal

Illco, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high47°
Average low26°
Average precipitation0.01 in
Chance of precipitation12%
Record high70° (2020)
Record low-2° (2002)
Thu, 0547° / 27°0.03Climate normal
47 °Climate normal

Illco, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high47°
Average low27°
Average precipitation0.03 in
Chance of precipitation17%
Record high68° (2001)
Record low-7° (1967)
Fri, 0647° / 28°0.04Climate normal
47 °Climate normal

Illco, Friday, 6 November

Climate normal for this date — 60-year average.

Average high47°
Average low28°
Average precipitation0.04 in
Chance of precipitation25%
Record high68° (2020)
Record low-7° (2003)
Sat, 0747° / 27°0.03Climate normal
47 °Climate normal

Illco, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high47°
Average low27°
Average precipitation0.03 in
Chance of precipitation20%
Record high69° (1999)
Record low-10° (2003)
Sun, 0846° / 26°0.06Climate normal
46 °Climate normal

Illco, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high46°
Average low26°
Average precipitation0.06 in
Chance of precipitation20%
Record high68° (1999)
Record low-4° (2003)
Mon, 0945° / 25°0.04Climate normal
45 °Climate normal

Illco, Monday, 9 November

Climate normal for this date — 60-year average.

Average high45°
Average low25°
Average precipitation0.04 in
Chance of precipitation22%
Record high65° (2016)
Record low-6° (1966)
Tue, 1044° / 24°0.05Climate normal
44 °Climate normal

Illco, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high44°
Average low24°
Average precipitation0.05 in
Chance of precipitation22%
Record high66° (2005)
Record low-14° (1986)
Wed, 1142° / 24°0.03Climate normal
42 °Climate normal

Illco, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high42°
Average low24°
Average precipitation0.03 in
Chance of precipitation15%
Record high65° (2005)
Record low-7° (2014)
Thu, 1244° / 24°0.03Climate normal
44 °Climate normal

Illco, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high44°
Average low24°
Average precipitation0.03 in
Chance of precipitation17%
Record high67° (1999)
Record low-16° (2000)
Fri, 1344° / 25°0.05Climate normal
44 °Climate normal

Illco, Friday, 13 November

Climate normal for this date — 60-year average.

Average high44°
Average low25°
Average precipitation0.05 in
Chance of precipitation23%
Record high66° (1999)
Record low-15° (1986)

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 Illco, 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 Illco, 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.