Monthly outlook for Rock River, WY: average high 56.5°, average low 38.2°. That is 4.8° above the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 22 October (64.1°), the coolest 27 October (26.7°).
56.5°/38.2°
Average high / low
+4.8°
Above normal
2 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
57°
50.2°
+3.8°
30 October – 8 November
55.6°
43.9°
+6.5°
9 November – 18 November
at normal
40.4°
—
October records over 66 years
77.4°4 October 2024All-time high
-15°30 October 2019All-time low
Wed, 2164° / 41°0
64 °
Rock River, Wednesday, 21 October
Partly cloudy. High 64°, low 41°.
Pressure30.15 inHg
Wind11.5 mph SE
Humidity45%
Visibility6.2 mi
Dew point39°
Thu, 2264° / 43°0
64 °
Rock River, Thursday, 22 October
Overcast. High 64°, low 43°.
Pressure30.09 inHg
Wind3.8 mph W
Humidity55%
Visibility6.2 mi
Dew point45°
Fri, 2361° / 46°0
61 °
Rock River, Friday, 23 October
Light rain. High 61°, low 46°.
Pressure29.83 inHg
Wind18 mph SW
Humidity46%
Visibility6.2 mi
Dew point39°
Sat, 2447° / 38°0.07
47 °
Rock River, Saturday, 24 October
Light rain. High 47°, low 38°.
Pressure30.18 inHg
Wind14.8 mph E
Humidity73%
Visibility—
Dew point37°
Sun, 2552° / 36°0.05
52 °
Rock River, Sunday, 25 October
Light rain. High 52°, low 36°.
Pressure30.24 inHg
Wind14.2 mph E
Humidity63%
Visibility—
Dew point31°
Mon, 2658° / 38°0
58 °
Rock River, Monday, 26 October
Clear. High 58°, low 38°.
Pressure30.12 inHg
Wind12.2 mph NW
Humidity18%
Visibility—
Dew point10°
Tue, 2745° / 27°0
45 °
Rock River, Tuesday, 27 October
Overcast. High 45°, low 27°.
Pressure30.39 inHg
Wind13.4 mph E
Humidity49%
Visibility—
Dew point20°
Wed, 2859° / 28°0
59 °
Rock River, Wednesday, 28 October
Clear. High 59°, low 28°.
Pressure30.09 inHg
Wind22.6 mph W
Humidity26%
Visibility—
Dew point17°
Thu, 2959° / 37°0
59 °
Rock River, Thursday, 29 October
Overcast. High 59°, low 37°.
Pressure29.91 inHg
Wind22.4 mph W
Humidity29%
Visibility—
Dew point23°
Fri, 3058° / 41°0
58 °
Rock River, Friday, 30 October
Overcast. High 58°, low 41°.
Pressure29.85 inHg
Wind19.7 mph W
Humidity41%
Visibility—
Dew point31°
Sat, 3156° / 42°0
56 °
Rock River, Saturday, 31 October
Overcast. High 56°, low 42°.
Pressure29.83 inHg
Wind18.4 mph W
Humidity41%
Visibility—
Dew point31°
Sun, 0153° / 41°0
53 °
Rock River, Sunday, 1 November
Overcast. High 53°, low 41°.
Pressure30.12 inHg
Wind18.3 mph W
Humidity48%
Visibility—
Dew point30°
Mon, 0256° / 37°0
56 °
Rock River, Monday, 2 November
Clear. High 56°, low 37°.
Pressure30.18 inHg
Wind18.2 mph W
Humidity29%
Visibility—
Dew point20°
Tue, 0360° / 36°0
60 °
Rock River, Tuesday, 3 November
Overcast. High 60°, low 36°.
Pressure29.97 inHg
Wind10.3 mph W
Humidity24%
Visibility—
Dew point16°
Wed, 0450° / 43°0
50 °
Rock River, Wednesday, 4 November
Overcast. High 50°, low 43°.
Pressure29.88 inHg
Wind25.4 mph W
Humidity45%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Wed, 1838° / 22°0.02
38 °
Rock River, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high38°
Average low22°
Average precipitation0.02 in
Chance of precipitation20%
Record high60° (2008)
Record low-5° (2022)
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.