Monthly outlook for Johnstown, WY: average high 57.4°, average low 40°. That is 0.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 9 October (80.4°), the coolest 16 October (29.9°).
57.4°/40°
Average high / low
+0.4°
Above normal
4 / 3
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
55.9°
57.5°
-0.9°
19 October – 28 October
60°
54.3°
+3.2°
29 October – 7 November
at normal
47.2°
—
October records over 66 years
82°4 October 2024All-time high
-11.2°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Pavillion (9 mi).
Sat, 1073° / 49°0
73 °
Johnstown, Saturday, 10 October
Light rain. High 73°, low 49°.
Pressure29.53 inHg
Wind6.8 mph S
Humidity24%
Visibility6.2 mi
Dew point33°
Sun, 1154° / 42°0.2
54 °
Johnstown, Sunday, 11 October
Rain. High 54°, low 42°.
Pressure29.74 inHg
Wind8.6 mph NE
Humidity65%
Visibility6.2 mi
Dew point40°
Mon, 1251° / 39°0.15
51 °
Johnstown, Monday, 12 October
Light rain. High 51°, low 39°.
Pressure29.85 inHg
Wind9.1 mph NE
Humidity64%
Visibility6.2 mi
Dew point36°
Tue, 1355° / 38°0.01
55 °
Johnstown, Tuesday, 13 October
Light rain. High 55°, low 38°.
Pressure29.97 inHg
Wind4.8 mph N
Humidity68%
Visibility—
Dew point38°
Wed, 1454° / 46°0.19
54 °
Johnstown, Wednesday, 14 October
Light rain. High 54°, low 46°.
Pressure29.80 inHg
Wind8.8 mph SE
Humidity73%
Visibility—
Dew point43°
Thu, 1547° / 38°0.36
47 °
Johnstown, Thursday, 15 October
Snow. High 47°, low 38°.
Pressure30.18 inHg
Wind11.8 mph NE
Humidity82%
Visibility—
Dew point35°
Fri, 1641° / 30°0
41 °
Johnstown, Friday, 16 October
Mostly clear. High 41°, low 30°.
Pressure30.59 inHg
Wind5.8 mph SE
Humidity51%
Visibility—
Dew point19°
Sat, 1751° / 30°0
51 °
Johnstown, Saturday, 17 October
Clear. High 51°, low 30°.
Pressure30.30 inHg
Wind4.2 mph SE
Humidity22%
Visibility—
Dew point6°
Sun, 1853° / 36°0
53 °
Johnstown, Sunday, 18 October
Partly cloudy. High 53°, low 36°.
Pressure30.33 inHg
Wind6.3 mph SE
Humidity31%
Visibility—
Dew point19°
Mon, 1956° / 36°0
56 °
Johnstown, Monday, 19 October
Clear. High 56°, low 36°.
Pressure30.12 inHg
Wind4.9 mph NW
Humidity34%
Visibility—
Dew point21°
Tue, 2059° / 42°0
59 °
Johnstown, Tuesday, 20 October
Clear. High 59°, low 42°.
Pressure30.06 inHg
Wind5.1 mph W
Humidity26%
Visibility—
Dew point19°
Wed, 2161° / 44°0
61 °
Johnstown, Wednesday, 21 October
Mostly clear. High 61°, low 44°.
Pressure30.06 inHg
Wind10.1 mph NE
Humidity23%
Visibility—
Dew point18°
Thu, 2258° / 40°0
58 °
Johnstown, Thursday, 22 October
Clear. High 58°, low 40°.
Pressure30.30 inHg
Wind5.1 mph NW
Humidity37%
Visibility—
Dew point25°
Fri, 2367° / 41°0
67 °
Johnstown, Friday, 23 October
Clear. High 67°, low 41°.
Pressure30.03 inHg
Wind8.5 mph W
Humidity19%
Visibility—
Dew point14°
Sat, 2459° / 44°0
59 °
Johnstown, Saturday, 24 October
Clear. High 59°, low 44°.
Pressure30.06 inHg
Wind6.5 mph W
Humidity20%
Visibility—
Dew point16°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2554° / 30°0.02
54 °
Johnstown, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high54°
Average low30°
Average precipitation0.02 in
Chance of precipitation15%
Record high73° (2014)
Record low2° (1975)
Mon, 2653° / 30°0.03
53 °
Johnstown, Monday, 26 October
Climate normal for this date — 60-year average.
Average high53°
Average low30°
Average precipitation0.03 in
Chance of precipitation15%
Record high69° (1988)
Record low-11° (2020)
Tue, 2752° / 29°0.03
52 °
Johnstown, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low29°
Average precipitation0.03 in
Chance of precipitation13%
Record high70° (2016)
Record low3° (2020)
Wed, 2851° / 28°0.04
51 °
Johnstown, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high51°
Average low28°
Average precipitation0.04 in
Chance of precipitation13%
Record high70° (1968)
Record low10° (2019)
Thu, 2949° / 29°0.05
49 °
Johnstown, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low29°
Average precipitation0.05 in
Chance of precipitation25%
Record high71° (1968)
Record low6° (2019)
Fri, 3047° / 27°0.04
47 °
Johnstown, Friday, 30 October
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.04 in
Chance of precipitation20%
Record high67° (1962)
Record low1° (2019)
Sat, 3147° / 27°0.02
47 °
Johnstown, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.02 in
Chance of precipitation12%
Record high66° (1988)
Record low1° (1991)
Sun, 0147° / 27°0.02
47 °
Johnstown, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.02 in
Chance of precipitation15%
Record high68° (2014)
Record low2° (2002)
Mon, 0246° / 26°0.05
46 °
Johnstown, Monday, 2 November
Climate normal for this date — 60-year average.
Average high46°
Average low26°
Average precipitation0.05 in
Chance of precipitation17%
Record high67° (2010)
Record low-8° (1991)
Tue, 0346° / 26°0.02
46 °
Johnstown, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low26°
Average precipitation0.02 in
Chance of precipitation10%
Record high68° (2020)
Record low-7° (1991)
Wed, 0448° / 26°0.02
48 °
Johnstown, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low26°
Average precipitation0.02 in
Chance of precipitation13%
Record high65° (1983)
Record low2° (1994)
Thu, 0547° / 26°0.02
47 °
Johnstown, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low26°
Average precipitation0.02 in
Chance of precipitation15%
Record high67° (2020)
Record low-2° (2003)
Fri, 0647° / 25°0.03
47 °
Johnstown, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low25°
Average precipitation0.03 in
Chance of precipitation10%
Record high67° (2010)
Record low-4° (1971)
Sat, 0746° / 26°0.02
46 °
Johnstown, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low26°
Average precipitation0.02 in
Chance of precipitation17%
Record high65° (2012)
Record low-1° (2003)
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 Johnstown, 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 Johnstown, 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.