Monthly outlook for Rock River, WY: average high 57.5°, average low 38.3°. That is 5.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 21 October (64.1°), the coolest 28 October (27.6°).
57.5°/38.3°
Average high / low
+5.1°
Above normal
2 / 4
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
57.3°
50.8°
+3.6°
29 October – 7 November
57.8°
44.3°
+7.5°
8 November – 17 November
at normal
40.9°
—
October records over 66 years
77.4°4 October 2024All-time high
-15°30 October 2019All-time low
Tue, 2063° / 37°0
63 °
Rock River, Tuesday, 20 October
Clear. High 63°, low 37°.
Pressure30.06 inHg
Wind8.3 mph NW
Humidity52%
Visibility6.2 mi
Dew point41°
Wed, 2164° / 40°0
64 °
Rock River, Wednesday, 21 October
Overcast. High 64°, low 40°.
Pressure30.12 inHg
Wind9.2 mph S
Humidity43%
Visibility6.2 mi
Dew point39°
Thu, 2263° / 44°0.01
63 °
Rock River, Thursday, 22 October
Light rain. High 63°, low 44°.
Pressure30.00 inHg
Wind4.8 mph S
Humidity49%
Visibility6.2 mi
Dew point43°
Fri, 2355° / 44°0
55 °
Rock River, Friday, 23 October
Clear. High 55°, low 44°.
Pressure29.83 inHg
Wind17.4 mph W
Humidity42%
Visibility6.2 mi
Dew point32°
Sat, 2447° / 35°0.05
47 °
Rock River, Saturday, 24 October
Light rain. High 47°, low 35°.
Pressure30.15 inHg
Wind13.7 mph W
Humidity74%
Visibility—
Dew point33°
Sun, 2557° / 33°0.07
57 °
Rock River, Sunday, 25 October
Light rain. High 57°, low 33°.
Pressure30.24 inHg
Wind10.2 mph NW
Humidity29%
Visibility—
Dew point18°
Mon, 2661° / 37°0
61 °
Rock River, Monday, 26 October
Clear. High 61°, low 37°.
Pressure30.09 inHg
Wind17.2 mph W
Humidity14%
Visibility—
Dew point7°
Tue, 2746° / 30°0
46 °
Rock River, Tuesday, 27 October
Overcast. High 46°, low 30°.
Pressure30.36 inHg
Wind15.5 mph E
Humidity46%
Visibility—
Dew point20°
Wed, 2855° / 28°0
55 °
Rock River, Wednesday, 28 October
Clear. High 55°, low 28°.
Pressure30.24 inHg
Wind8.9 mph SE
Humidity38%
Visibility—
Dew point19°
Thu, 2961° / 35°0
61 °
Rock River, Thursday, 29 October
Overcast. High 61°, low 35°.
Pressure29.94 inHg
Wind25.1 mph W
Humidity17%
Visibility—
Dew point12°
Fri, 3060° / 45°0
60 °
Rock River, Friday, 30 October
Overcast. High 60°, low 45°.
Pressure29.97 inHg
Wind24.1 mph W
Humidity25%
Visibility—
Dew point21°
Sat, 3156° / 46°0
56 °
Rock River, Saturday, 31 October
Overcast. High 56°, low 46°.
Pressure29.94 inHg
Wind19.4 mph W
Humidity35%
Visibility—
Dew point27°
Sun, 0155° / 41°0
55 °
Rock River, Sunday, 1 November
Light rain. High 55°, low 41°.
Pressure30.12 inHg
Wind21.3 mph W
Humidity44%
Visibility—
Dew point29°
Mon, 0262° / 39°0
62 °
Rock River, Monday, 2 November
Overcast. High 62°, low 39°.
Pressure29.97 inHg
Wind18.8 mph W
Humidity25%
Visibility—
Dew point20°
Tue, 0354° / 44°0.02
54 °
Rock River, Tuesday, 3 November
Light rain. High 54°, low 44°.
Pressure29.71 inHg
Wind32.8 mph W
Humidity52%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0444° / 26°0.02
44 °
Rock River, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.02 in
Chance of precipitation13%
Record high64° (1983)
Record low-3° (2002)
Thu, 0544° / 27°0.02
44 °
Rock River, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high44°
Average low27°
Average precipitation0.02 in
Chance of precipitation20%
Record high63° (1999)
Record low-6° (1961)
Fri, 0644° / 28°0.02
44 °
Rock River, Friday, 6 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.02 in
Chance of precipitation17%
Record high64° (1999)
Record low1° (1967)
Sat, 0745° / 27°0.02
45 °
Rock River, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.02 in
Chance of precipitation13%
Record high66° (1999)
Record low-5° (2003)
Sun, 0844° / 26°0.05
44 °
Rock River, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.05 in
Chance of precipitation32%
Record high63° (1999)
Record low3° (2000)
Mon, 0942° / 26°0.06
42 °
Rock River, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.06 in
Chance of precipitation30%
Record high61° (2016)
Record low1° (1960)
Tue, 1042° / 24°0.04
42 °
Rock River, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.04 in
Chance of precipitation23%
Record high63° (1980)
Record low-1° (1986)
Wed, 1140° / 24°0.04
40 °
Rock River, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.04 in
Chance of precipitation25%
Record high62° (1980)
Record low1° (2014)
Thu, 1241° / 24°0.04
41 °
Rock River, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high41°
Average low24°
Average precipitation0.04 in
Chance of precipitation20%
Record high64° (1999)
Record low-12° (2014)
Fri, 1342° / 25°0.05
42 °
Rock River, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.05 in
Chance of precipitation23%
Record high62° (1999)
Record low-10° (2014)
Sat, 1440° / 24°0.04
40 °
Rock River, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.04 in
Chance of precipitation23%
Record high63° (1999)
Record low-5° (2000)
Sun, 1540° / 22°0.04
40 °
Rock River, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high40°
Average low22°
Average precipitation0.04 in
Chance of precipitation17%
Record high65° (1999)
Record low-13° (1997)
Mon, 1640° / 24°0.02
40 °
Rock River, Monday, 16 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.02 in
Chance of precipitation10%
Record high62° (2016)
Record low-12° (2014)
Tue, 1739° / 23°0.04
39 °
Rock River, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high39°
Average low23°
Average precipitation0.04 in
Chance of precipitation23%
Record high64° (1999)
Record low-5° (1980)
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 Rock River, 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 Rock River, 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.