As of 03:51 MDT

Weather in Riverton, WY

55°Current weather

Riverton, Friday, 9 October, 03:51

Clear. Feels like 52°. High 83°, low 51°.

Pressure29.91 inHg
Wind9.2 mph W
Humidity35%
Visibility6.2 mi
Dew point28°

Monthly outlook for Riverton, WY: average high 60.5°, average low 42.7°. That is 1.5° above the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 9 October (83°), the coolest 16 October (30.8°).

60.5°/42.7°
Average high / low
+1.5°
Above normal
5 / 3
Wet days / normal
1.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October61.7°58.6°+1.7°
19 October – 28 October58.6°55.3°+1.8°
29 October – 7 Novemberat normal48.1°—

October records over 66 years

85.8°4 October 2024All-time high
-10.8°30 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Arapahoe (4 mi).

Sat, 1079° / 51°0Light rain
79 °Light rain

Riverton, Saturday, 10 October

Light rain. High 79°, low 51°.

Pressure29.50 inHg
Wind6.8 mph S
Humidity20%
Visibility6.2 mi
Dew point31°
Sun, 1159° / 43°0.15Light rain
59 °Light rain

Riverton, Sunday, 11 October

Light rain. High 59°, low 43°.

Pressure29.71 inHg
Wind6.6 mph N
Humidity56%
Visibility6.2 mi
Dew point41°
Mon, 1250° / 40°0.06Light rain
50 °Light rain

Riverton, Monday, 12 October

Light rain. High 50°, low 40°.

Pressure29.80 inHg
Wind14.9 mph N
Humidity67%
Visibility6.2 mi
Dew point37°
Tue, 1352° / 40°0.43Rain
52 °Rain

Riverton, Tuesday, 13 October

Rain. High 52°, low 40°.

Pressure29.91 inHg
Wind10.9 mph N
Humidity82%
Visibility—
Dew point40°
Wed, 1457° / 41°0.17Rain
57 °Rain

Riverton, Wednesday, 14 October

Rain. High 57°, low 41°.

Pressure29.97 inHg
Wind10.8 mph N
Humidity68%
Visibility—
Dew point38°
Thu, 1555° / 39°0.01Light rain
55 °Light rain

Riverton, Thursday, 15 October

Light rain. High 55°, low 39°.

Pressure30.24 inHg
Wind24.9 mph N
Humidity60%
Visibility—
Dew point31°
Fri, 1650° / 31°0Clear
50 °Clear

Riverton, Friday, 16 October

Clear. High 50°, low 31°.

Pressure30.50 inHg
Wind16.7 mph N
Humidity32%
Visibility—
Dew point13°
Sat, 1765° / 40°0Mostly clear
65 °Mostly clear

Riverton, Saturday, 17 October

Mostly clear. High 65°, low 40°.

Pressure30.18 inHg
Wind5.7 mph SE
Humidity14%
Visibility—
Dew point8°
Sun, 1866° / 46°0Mostly clear
66 °Mostly clear

Riverton, Sunday, 18 October

Mostly clear. High 66°, low 46°.

Pressure30.03 inHg
Wind5.3 mph S
Humidity14%
Visibility—
Dew point10°
Mon, 1967° / 44°0Clear
67 °Clear

Riverton, Monday, 19 October

Clear. High 67°, low 44°.

Pressure29.94 inHg
Wind10 mph S
Humidity19%
Visibility—
Dew point17°
Tue, 2071° / 47°0Clear
71 °Clear

Riverton, Tuesday, 20 October

Clear. High 71°, low 47°.

Pressure29.80 inHg
Wind16.3 mph SW
Humidity20%
Visibility—
Dew point22°
Wed, 2157° / 46°0.02Light rain
57 °Light rain

Riverton, Wednesday, 21 October

Light rain. High 57°, low 46°.

Pressure30.03 inHg
Wind18.7 mph E
Humidity43%
Visibility—
Dew point30°
Thu, 2243° / 39°0.62Rain
43 °Rain

Riverton, Thursday, 22 October

Rain. High 43°, low 39°.

Pressure30.21 inHg
Wind10.8 mph N
Humidity92%
Visibility—
Dew point38°
Fri, 2357° / 41°0.03Light rain
57 °Light rain

Riverton, Friday, 23 October

Light rain. High 57°, low 41°.

Pressure29.97 inHg
Wind6.6 mph W
Humidity61%
Visibility—
Dew point35°
Sat, 2457° / 45°0Mostly clear
57 °Mostly clear

Riverton, Saturday, 24 October

Mostly clear. High 57°, low 45°.

Pressure29.91 inHg
Wind4.9 mph W
Humidity41%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2555° / 31°0.02Climate normal
55 °Climate normal

Riverton, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high55°
Average low31°
Average precipitation0.02 in
Chance of precipitation12%
Record high74° (2014)
Record low4° (1975)
Mon, 2653° / 31°0.04Climate normal
53 °Climate normal

Riverton, Monday, 26 October

Climate normal for this date — 60-year average.

Average high53°
Average low31°
Average precipitation0.04 in
Chance of precipitation23%
Record high71° (1977)
Record low-1° (2020)
Tue, 2753° / 29°0.03Climate normal
53 °Climate normal

Riverton, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high53°
Average low29°
Average precipitation0.03 in
Chance of precipitation12%
Record high72° (2024)
Record low8° (1976)
Wed, 2853° / 29°0.05Climate normal
53 °Climate normal

Riverton, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high53°
Average low29°
Average precipitation0.05 in
Chance of precipitation15%
Record high70° (1968)
Record low5° (2019)
Thu, 2950° / 29°0.06Climate normal
50 °Climate normal

Riverton, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high50°
Average low29°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (1968)
Record low4° (2019)
Fri, 3048° / 27°0.05Climate normal
48 °Climate normal

Riverton, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°
Average low27°
Average precipitation0.05 in
Chance of precipitation25%
Record high69° (1962)
Record low-11° (2019)
Sat, 3148° / 27°0.03Climate normal
48 °Climate normal

Riverton, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high48°
Average low27°
Average precipitation0.03 in
Chance of precipitation22%
Record high68° (2014)
Record low-2° (1991)
Sun, 0148° / 26°0.02Climate normal
48 °Climate normal

Riverton, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high48°
Average low26°
Average precipitation0.02 in
Chance of precipitation20%
Record high69° (2014)
Record low-3° (2002)
Mon, 0247° / 25°0.05Climate normal
47 °Climate normal

Riverton, Monday, 2 November

Climate normal for this date — 60-year average.

Average high47°
Average low25°
Average precipitation0.05 in
Chance of precipitation15%
Record high69° (2025)
Record low-6° (1991)
Tue, 0347° / 26°0.02Climate normal
47 °Climate normal

Riverton, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°
Average low26°
Average precipitation0.02 in
Chance of precipitation7%
Record high67° (2020)
Record low-8° (1991)
Wed, 0449° / 26°0.01Climate normal
49 °Climate normal

Riverton, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low26°
Average precipitation0.01 in
Chance of precipitation7%
Record high67° (2020)
Record low2° (1994)
Thu, 0548° / 26°0.03Climate normal
48 °Climate normal

Riverton, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°
Average low26°
Average precipitation0.03 in
Chance of precipitation17%
Record high67° (2020)
Record low-1° (1967)
Fri, 0648° / 26°0.04Climate normal
48 °Climate normal

Riverton, Friday, 6 November

Climate normal for this date — 60-year average.

Average high48°
Average low26°
Average precipitation0.04 in
Chance of precipitation12%
Record high69° (2020)
Record low-1° (1971)
Sat, 0747° / 27°0.02Climate normal
47 °Climate normal

Riverton, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high47°
Average low27°
Average precipitation0.02 in
Chance of precipitation12%
Record high66° (1999)
Record low-3° (2003)

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, 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 Riverton, 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.