Monthly outlook for Riverton, CA: average high 58.1°, average low 37.8°. That is 3.9° below the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 3 days and 1.8 inches. The warmest day looks like 17 October (77.6°), the coolest 27 October (25.9°).
58.1°/37.8°
Average high / low
−3.9°
Below normal
3 / 3
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
66.3°
66.8°
-0.3°
25 October – 3 November
44.5°
62.1°
-9.8°
4 November – 13 November
at normal
57.6°
—
October records over 66 years
91.9°1 October 2024All-time high
25.3°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Grizzly Flats (10 mi).
Fri, 1676° / 44°0
76 °
Riverton, Friday, 16 October
Clear. High 76°, low 44°.
Pressure30.12 inHg
Wind6.6 mph E
Humidity15%
Visibility6.2 mi
Dew point22°
Sat, 1778° / 50°0
78 °
Riverton, Saturday, 17 October
Clear. High 78°, low 50°.
Pressure30.09 inHg
Wind6 mph W
Humidity17%
Visibility6.2 mi
Dew point22°
Sun, 1873° / 52°0
73 °
Riverton, Sunday, 18 October
Clear. High 73°, low 52°.
Pressure30.00 inHg
Wind9.2 mph SW
Humidity21%
Visibility6.2 mi
Dew point25°
Mon, 1963° / 46°0
63 °
Riverton, Monday, 19 October
Overcast. High 63°, low 46°.
Pressure29.91 inHg
Wind8.7 mph SW
Humidity30%
Visibility—
Dew point29°
Tue, 2058° / 44°0.06
58 °
Riverton, Tuesday, 20 October
Light rain. High 58°, low 44°.
Pressure29.88 inHg
Wind5.6 mph SW
Humidity36%
Visibility—
Dew point30°
Wed, 2153° / 36°0.01
53 °
Riverton, Wednesday, 21 October
Light rain. High 53°, low 36°.
Pressure29.88 inHg
Wind8.7 mph W
Humidity56%
Visibility—
Dew point33°
Thu, 2261° / 36°0
61 °
Riverton, Thursday, 22 October
Clear. High 61°, low 36°.
Pressure30.03 inHg
Wind9.8 mph W
Humidity35%
Visibility—
Dew point27°
Fri, 2365° / 43°0
65 °
Riverton, Friday, 23 October
Clear. High 65°, low 43°.
Pressure30.15 inHg
Wind8 mph W
Humidity25%
Visibility—
Dew point24°
Sat, 2461° / 39°0
61 °
Riverton, Saturday, 24 October
Clear. High 61°, low 39°.
Pressure30.06 inHg
Wind10.2 mph SW
Humidity27%
Visibility—
Dew point25°
Sun, 2537° / 28°0.15
37 °
Riverton, Sunday, 25 October
Light snow. High 37°, low 28°.
Pressure29.94 inHg
Wind8.2 mph SW
Humidity76%
Visibility—
Dew point28°
Mon, 2633° / 27°0.46
33 °
Riverton, Monday, 26 October
Snow. High 33°, low 27°.
Pressure29.94 inHg
Wind3.8 mph E
Humidity100%
Visibility—
Dew point31°
Tue, 2741° / 26°0.01
41 °
Riverton, Tuesday, 27 October
Light snow. High 41°, low 26°.
Pressure30.15 inHg
Wind6.7 mph E
Humidity76%
Visibility—
Dew point31°
Wed, 2848° / 31°0
48 °
Riverton, Wednesday, 28 October
Overcast. High 48°, low 31°.
Pressure30.09 inHg
Wind6.7 mph E
Humidity68%
Visibility—
Dew point34°
Thu, 2952° / 33°0
52 °
Riverton, Thursday, 29 October
Overcast. High 52°, low 33°.
Pressure30.12 inHg
Wind8.4 mph E
Humidity53%
Visibility—
Dew point30°
Fri, 3055° / 33°0
55 °
Riverton, Friday, 30 October
Clear. High 55°, low 33°.
Pressure30.18 inHg
Wind8.3 mph E
Humidity38%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3162° / 42°0.07
62 °
Riverton, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high62°
Average low42°
Average precipitation0.07 in
Chance of precipitation23%
Record high79° (1966)
Record low30° (1989)
Sun, 0162° / 42°0.09
62 °
Riverton, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high62°
Average low42°
Average precipitation0.09 in
Chance of precipitation22%
Record high78° (1966)
Record low30° (2003)
Mon, 0262° / 42°0.11
62 °
Riverton, Monday, 2 November
Climate normal for this date — 60-year average.
Average high62°
Average low42°
Average precipitation0.11 in
Chance of precipitation22%
Record high78° (2020)
Record low32° (2003)
Tue, 0362° / 42°0.1
62 °
Riverton, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high62°
Average low42°
Average precipitation0.1 in
Chance of precipitation25%
Record high78° (1976)
Record low18° (2022)
Wed, 0461° / 41°0.1
61 °
Riverton, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high61°
Average low41°
Average precipitation0.1 in
Chance of precipitation17%
Record high77° (1980)
Record low25° (2003)
Thu, 0560° / 41°0.14
60 °
Riverton, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high60°
Average low41°
Average precipitation0.14 in
Chance of precipitation18%
Record high78° (2020)
Record low27° (2011)
Fri, 0659° / 42°0.17
59 °
Riverton, Friday, 6 November
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.17 in
Chance of precipitation25%
Record high75° (1976)
Record low29° (2003)
Sat, 0758° / 41°0.13
58 °
Riverton, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.13 in
Chance of precipitation33%
Record high74° (1991)
Record low27° (2011)
Sun, 0857° / 40°0.18
57 °
Riverton, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high57°
Average low40°
Average precipitation0.18 in
Chance of precipitation33%
Record high74° (2019)
Record low27° (2011)
Mon, 0956° / 38°0.14
56 °
Riverton, Monday, 9 November
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.14 in
Chance of precipitation37%
Record high75° (2025)
Record low21° (2020)
Tue, 1056° / 38°0.19
56 °
Riverton, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.19 in
Chance of precipitation37%
Record high74° (2025)
Record low20° (2022)
Wed, 1156° / 39°0.19
56 °
Riverton, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.19 in
Chance of precipitation32%
Record high73° (1990)
Record low21° (1994)
Thu, 1256° / 38°0.15
56 °
Riverton, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.15 in
Chance of precipitation28%
Record high71° (1990)
Record low19° (1985)
Fri, 1356° / 38°0.22
56 °
Riverton, Friday, 13 November
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.22 in
Chance of precipitation32%
Record high72° (1995)
Record low12° (1985)
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 Riverton, CA 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 Riverton, CA 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.