Monthly outlook for Rock River, WY: average high 56°, average low 36.8°. That is 3.6° above the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 17 October (68.8°), the coolest 25 October (29°).
56°/36.8°
Average high / low
+3.6°
Above normal
3 / 4
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
58.7°
51.7°
+3.9°
27 October – 5 November
51.6°
45°
+3.7°
6 November – 15 November
at normal
41.9°
—
October records over 66 years
77.4°4 October 2024All-time high
-15°30 October 2019All-time low
Sun, 1866° / 36°0
66 °
Rock River, Sunday, 18 October
Overcast. High 66°, low 36°.
Pressure30.12 inHg
Wind1.6 mph E
Humidity42%
Visibility6.2 mi
Dew point31°
Mon, 1960° / 40°0
60 °
Rock River, Monday, 19 October
Overcast. High 60°, low 40°.
Pressure30.09 inHg
Wind0.2 mph S
Humidity48%
Visibility6.2 mi
Dew point36°
Tue, 2061° / 38°0
61 °
Rock River, Tuesday, 20 October
Clear. High 61°, low 38°.
Pressure30.06 inHg
Wind3.6 mph NW
Humidity54%
Visibility6.2 mi
Dew point41°
Wed, 2164° / 37°0
64 °
Rock River, Wednesday, 21 October
Mostly clear. High 64°, low 37°.
Pressure30.15 inHg
Wind6.8 mph SE
Humidity45%
Visibility6.2 mi
Dew point39°
Thu, 2263° / 43°0
63 °
Rock River, Thursday, 22 October
Overcast. High 63°, low 43°.
Pressure30.00 inHg
Wind12.2 mph SE
Humidity47%
Visibility—
Dew point37°
Fri, 2358° / 43°1.07
58 °
Rock River, Friday, 23 October
Heavy rain. High 58°, low 43°.
Pressure29.71 inHg
Wind13 mph NE
Humidity46%
Visibility—
Dew point36°
Sat, 2443° / 32°0.07
43 °
Rock River, Saturday, 24 October
Snow. High 43°, low 32°.
Pressure30.42 inHg
Wind13.6 mph N
Humidity63%
Visibility—
Dew point24°
Sun, 2550° / 29°0
50 °
Rock River, Sunday, 25 October
Clear. High 50°, low 29°.
Pressure30.39 inHg
Wind6 mph S
Humidity22%
Visibility—
Dew point6°
Mon, 2653° / 34°0
53 °
Rock River, Monday, 26 October
Overcast. High 53°, low 34°.
Pressure30.03 inHg
Wind5.2 mph SW
Humidity18%
Visibility—
Dew point5°
Tue, 2756° / 41°0
56 °
Rock River, Tuesday, 27 October
Mostly clear. High 56°, low 41°.
Pressure29.83 inHg
Wind28.6 mph W
Humidity42%
Visibility—
Dew point29°
Wed, 2854° / 40°0
54 °
Rock River, Wednesday, 28 October
Clear. High 54°, low 40°.
Pressure29.68 inHg
Wind28.6 mph W
Humidity37%
Visibility—
Dew point26°
Thu, 2949° / 37°0
49 °
Rock River, Thursday, 29 October
Clear. High 49°, low 37°.
Pressure29.94 inHg
Wind28.7 mph W
Humidity35%
Visibility—
Dew point19°
Fri, 3055° / 39°0
55 °
Rock River, Friday, 30 October
Clear. High 55°, low 39°.
Pressure29.74 inHg
Wind17.2 mph W
Humidity29%
Visibility—
Dew point19°
Sat, 3141° / 32°0.19
41 °
Rock River, Saturday, 31 October
Snow. High 41°, low 32°.
Pressure29.80 inHg
Wind36.2 mph W
Humidity59%
Visibility—
Dew point20°
Sun, 0156° / 38°0
56 °
Rock River, Sunday, 1 November
Clear. High 56°, low 38°.
Pressure29.80 inHg
Wind30.4 mph W
Humidity35%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0243° / 26°0.05
43 °
Rock River, Monday, 2 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.05 in
Chance of precipitation20%
Record high64° (2008)
Record low-9° (1991)
Tue, 0343° / 26°0.06
43 °
Rock River, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.06 in
Chance of precipitation20%
Record high61° (2015)
Record low-6° (1967)
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)
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.