Monthly outlook for Fossil, WY: average high 53.5°, average low 36.6°. That is 0.1° above the climate normal for October. Precipitation is expected on 7 days (about 1.6 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 9 October (71.9°), the coolest 23 October (24.5°).
53.5°/36.6°
Average high / low
+0.1°
Above normal
7 / 3
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
57.3°
54.5°
+1.5°
19 October – 28 October
47.1°
50.1°
-1.7°
29 October – 7 November
at normal
43.3°
—
October records over 66 years
78.6°4 October 2024All-time high
-16.4°30 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Oakley (11 mi).
Sat, 1066° / 43°0.06
66 °
Fossil, Saturday, 10 October
Light rain. High 66°, low 43°.
Pressure29.68 inHg
Wind19.1 mph SW
Humidity42%
Visibility5.8 mi
Dew point37°
Sun, 1157° / 41°0.51
57 °
Fossil, Sunday, 11 October
Rain. High 57°, low 41°.
Pressure29.62 inHg
Wind6.9 mph E
Humidity90%
Visibility2.7 mi
Dew point47°
Mon, 1255° / 42°0.17
55 °
Fossil, Monday, 12 October
Rain. High 55°, low 42°.
Pressure29.83 inHg
Wind5.3 mph SW
Humidity65%
Visibility6.2 mi
Dew point38°
Tue, 1353° / 38°0.37
53 °
Fossil, Tuesday, 13 October
Rain. High 53°, low 38°.
Pressure29.83 inHg
Wind5.4 mph SE
Humidity58%
Visibility6.2 mi
Dew point38°
Wed, 1445° / 37°0.21
45 °
Fossil, Wednesday, 14 October
Light rain. High 45°, low 37°.
Pressure30.09 inHg
Wind5.6 mph N
Humidity73%
Visibility—
Dew point34°
Thu, 1550° / 38°0.13
50 °
Fossil, Thursday, 15 October
Light rain. High 50°, low 38°.
Pressure30.27 inHg
Wind14.1 mph NW
Humidity73%
Visibility—
Dew point36°
Fri, 1653° / 36°0
53 °
Fossil, Friday, 16 October
Clear. High 53°, low 36°.
Pressure30.39 inHg
Wind10 mph NW
Humidity50%
Visibility—
Dew point29°
Sat, 1760° / 37°0
60 °
Fossil, Saturday, 17 October
Clear. High 60°, low 37°.
Pressure30.24 inHg
Wind11.1 mph W
Humidity37%
Visibility—
Dew point24°
Sun, 1861° / 41°0
61 °
Fossil, Sunday, 18 October
Overcast. High 61°, low 41°.
Pressure30.00 inHg
Wind13.7 mph W
Humidity32%
Visibility—
Dew point25°
Mon, 1957° / 43°0
57 °
Fossil, Monday, 19 October
Overcast. High 57°, low 43°.
Pressure29.85 inHg
Wind21.9 mph W
Humidity37%
Visibility—
Dew point28°
Tue, 2050° / 34°0
50 °
Fossil, Tuesday, 20 October
Overcast. High 50°, low 34°.
Pressure29.83 inHg
Wind29.2 mph W
Humidity35%
Visibility—
Dew point22°
Wed, 2147° / 28°0
47 °
Fossil, Wednesday, 21 October
Clear. High 47°, low 28°.
Pressure30.24 inHg
Wind17.7 mph W
Humidity35%
Visibility—
Dew point12°
Thu, 2248° / 32°0.17
48 °
Fossil, Thursday, 22 October
Snow. High 48°, low 32°.
Pressure29.91 inHg
Wind24.1 mph W
Humidity26%
Visibility—
Dew point11°
Fri, 2339° / 25°0
39 °
Fossil, Friday, 23 October
Partly cloudy. High 39°, low 25°.
Pressure30.42 inHg
Wind18 mph W
Humidity58%
Visibility—
Dew point19°
Sat, 2443° / 26°0
43 °
Fossil, Saturday, 24 October
Partly cloudy. High 43°, low 26°.
Pressure30.42 inHg
Wind13.4 mph W
Humidity35%
Visibility—
Dew point11°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2550° / 29°0.04
50 °
Fossil, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high50°
Average low29°
Average precipitation0.04 in
Chance of precipitation20%
Record high68° (2014)
Record low7° (2020)
Mon, 2649° / 29°0.04
49 °
Fossil, Monday, 26 October
Climate normal for this date — 60-year average.
Average high49°
Average low29°
Average precipitation0.04 in
Chance of precipitation23%
Record high66° (1977)
Record low-3° (2020)
Tue, 2748° / 28°0.04
48 °
Fossil, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high48°
Average low28°
Average precipitation0.04 in
Chance of precipitation15%
Record high65° (2024)
Record low2° (1996)
Wed, 2847° / 28°0.05
47 °
Fossil, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.05 in
Chance of precipitation25%
Record high64° (1990)
Record low2° (1984)
Thu, 2946° / 28°0.06
46 °
Fossil, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.06 in
Chance of precipitation30%
Record high64° (1962)
Record low0° (2019)
Fri, 3044° / 26°0.06
44 °
Fossil, Friday, 30 October
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.06 in
Chance of precipitation30%
Record high64° (1962)
Record low-16° (2019)
Sat, 3143° / 26°0.04
43 °
Fossil, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.04 in
Chance of precipitation27%
Record high62° (2014)
Record low-7° (1972)
Sun, 0143° / 25°0.03
43 °
Fossil, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high43°
Average low25°
Average precipitation0.03 in
Chance of precipitation15%
Record high62° (2014)
Record low1° (2004)
Mon, 0243° / 24°0.04
43 °
Fossil, Monday, 2 November
Climate normal for this date — 60-year average.
Average high43°
Average low24°
Average precipitation0.04 in
Chance of precipitation23%
Record high61° (2020)
Record low-4° (1991)
Tue, 0343° / 24°0.03
43 °
Fossil, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high43°
Average low24°
Average precipitation0.03 in
Chance of precipitation17%
Record high62° (2020)
Record low-14° (1991)
Wed, 0443° / 24°0.02
43 °
Fossil, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high43°
Average low24°
Average precipitation0.02 in
Chance of precipitation10%
Record high62° (2020)
Record low-6° (1994)
Thu, 0544° / 26°0.02
44 °
Fossil, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.02 in
Chance of precipitation18%
Record high62° (2020)
Record low-2° (1961)
Fri, 0643° / 25°0.02
43 °
Fossil, Friday, 6 November
Climate normal for this date — 60-year average.
Average high43°
Average low25°
Average precipitation0.02 in
Chance of precipitation17%
Record high63° (2020)
Record low-8° (1971)
Sat, 0742° / 25°0.04
42 °
Fossil, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.04 in
Chance of precipitation20%
Record high60° (1980)
Record low-5° (1990)
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 Fossil, 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 Fossil, 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.