Monthly outlook for Riverton, CA: average high 56.5°, average low 39.1°. That is 4.4° below the climate normal for October. Precipitation is expected on 7 days (about 4.6 inches), against a normal of 3 days and 1.7 inches. The warmest day looks like 17 October (75.2°), the coolest 30 October (27.4°).
56.5°/39.1°
Average high / low
−4.4°
Below normal
7 / 3
Wet days / normal
4.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
61.4°
66°
-2.5°
27 October – 5 November
48.2°
61.5°
-7.4°
6 November – 15 November
at normal
56.6°
—
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).
Sun, 1871° / 42°0
71 °
Riverton, Sunday, 18 October
Clear. High 71°, low 42°.
Pressure30.00 inHg
Wind8.4 mph SW
Humidity21%
Visibility6.2 mi
Dew point26°
Mon, 1965° / 47°0
65 °
Riverton, Monday, 19 October
Partly cloudy. High 65°, low 47°.
Pressure29.88 inHg
Wind8.9 mph SW
Humidity32%
Visibility6.2 mi
Dew point34°
Tue, 2063° / 42°0
63 °
Riverton, Tuesday, 20 October
Overcast. High 63°, low 42°.
Pressure29.85 inHg
Wind5.8 mph SW
Humidity30%
Visibility6.2 mi
Dew point32°
Wed, 2157° / 47°0.22
57 °
Riverton, Wednesday, 21 October
Light rain. High 57°, low 47°.
Pressure29.91 inHg
Wind7.2 mph SE
Humidity60%
Visibility—
Dew point41°
Thu, 2249° / 41°0.34
49 °
Riverton, Thursday, 22 October
Rain. High 49°, low 41°.
Pressure30.03 inHg
Wind3.4 mph E
Humidity98%
Visibility—
Dew point46°
Fri, 2358° / 38°0
58 °
Riverton, Friday, 23 October
Partly cloudy. High 58°, low 38°.
Pressure30.09 inHg
Wind8.7 mph W
Humidity51%
Visibility—
Dew point35°
Sat, 2457° / 42°0.07
57 °
Riverton, Saturday, 24 October
Light rain. High 57°, low 42°.
Pressure30.09 inHg
Wind8.4 mph SW
Humidity44%
Visibility—
Dew point34°
Sun, 2555° / 39°1.66
55 °
Riverton, Sunday, 25 October
Heavy rain. High 55°, low 39°.
Pressure29.97 inHg
Wind8 mph SW
Humidity74%
Visibility—
Dew point39°
Mon, 2664° / 38°0
64 °
Riverton, Monday, 26 October
Clear. High 64°, low 38°.
Pressure29.88 inHg
Wind7.3 mph E
Humidity23%
Visibility—
Dew point19°
Tue, 2759° / 43°0
59 °
Riverton, Tuesday, 27 October
Overcast. High 59°, low 43°.
Pressure29.94 inHg
Wind7.6 mph SW
Humidity37%
Visibility—
Dew point31°
Wed, 2859° / 39°0
59 °
Riverton, Wednesday, 28 October
Overcast. High 59°, low 39°.
Pressure30.03 inHg
Wind9.3 mph SW
Humidity29%
Visibility—
Dew point24°
Thu, 2938° / 29°0.26
38 °
Riverton, Thursday, 29 October
Snow. High 38°, low 29°.
Pressure30.03 inHg
Wind7.9 mph W
Humidity98%
Visibility—
Dew point37°
Fri, 3048° / 27°0
48 °
Riverton, Friday, 30 October
Light rain. High 48°, low 27°.
Pressure30.00 inHg
Wind6.9 mph E
Humidity30%
Visibility—
Dew point14°
Sat, 3146° / 33°0.39
46 °
Riverton, Saturday, 31 October
Snow. High 46°, low 33°.
Pressure29.91 inHg
Wind9.4 mph S
Humidity46%
Visibility—
Dew point24°
Sun, 0138° / 34°1.61
38 °
Riverton, Sunday, 1 November
Heavy rain. High 38°, low 34°.
Pressure29.71 inHg
Wind9.3 mph SE
Humidity95%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 1456° / 38°0.19
56 °
Riverton, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.19 in
Chance of precipitation30%
Record high73° (2008)
Record low13° (1964)
Sun, 1556° / 38°0.09
56 °
Riverton, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.09 in
Chance of precipitation28%
Record high73° (2008)
Record low20° (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.