As of 13:13 CDT

Weather in Riverside, SD

76°Current weather

Riverside, Sunday, 11 October, 13:13

Overcast. Feels like 76°. High 78°, low 54°.

Pressure29.71 inHg
Wind5.7 mph NW
Humidity53%
Visibility6.2 mi
Dew point57°

Monthly outlook for Riverside, SD: average high 66.8°, average low 48.1°. That is 4° above the climate normal for October. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 24 October (78.9°), the coolest 17 October (35.3°).

66.8°/48.1°
Average high / low
+4°
Above normal
1 / 3
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October66.1°60.7°+3°
21 October – 30 October68.1°56.4°+6.5°
31 October – 9 Novemberat normal50.7°—

October records over 66 years

92.5°3 October 2025All-time high
7.2°27 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Ethan (12 mi).

Mon, 1273° / 50°0.03Light rain
73 °Light rain

Riverside, Monday, 12 October

Light rain. High 73°, low 50°.

Pressure29.65 inHg
Wind8.6 mph N
Humidity60%
Visibility6.2 mi
Dew point57°
Tue, 1358° / 49°0Overcast
58 °Overcast

Riverside, Tuesday, 13 October

Overcast. High 58°, low 49°.

Pressure30.03 inHg
Wind11.1 mph N
Humidity57%
Visibility6.2 mi
Dew point41°
Wed, 1461° / 44°0Partly cloudy
61 °Partly cloudy

Riverside, Wednesday, 14 October

Partly cloudy. High 61°, low 44°.

Pressure30.24 inHg
Wind6.3 mph N
Humidity53%
Visibility6.2 mi
Dew point39°
Thu, 1556° / 50°0.39Rain
56 °Rain

Riverside, Thursday, 15 October

Rain. High 56°, low 50°.

Pressure30.21 inHg
Wind10.4 mph N
Humidity83%
Visibility6.2 mi
Dew point48°
Fri, 1656° / 44°0Clear
56 °Clear

Riverside, Friday, 16 October

Clear. High 56°, low 44°.

Pressure30.68 inHg
Wind14.4 mph N
Humidity54%
Visibility—
Dew point35°
Sat, 1759° / 35°0Overcast
59 °Overcast

Riverside, Saturday, 17 October

Overcast. High 59°, low 35°.

Pressure30.42 inHg
Wind21.1 mph S
Humidity22%
Visibility—
Dew point13°
Sun, 1875° / 47°0Overcast
75 °Overcast

Riverside, Sunday, 18 October

Overcast. High 75°, low 47°.

Pressure29.94 inHg
Wind19.9 mph S
Humidity28%
Visibility—
Dew point30°
Mon, 1972° / 49°0Partly cloudy
72 °Partly cloudy

Riverside, Monday, 19 October

Partly cloudy. High 72°, low 49°.

Pressure30.12 inHg
Wind14.5 mph SE
Humidity28%
Visibility—
Dew point32°
Tue, 2073° / 51°0Clear
73 °Clear

Riverside, Tuesday, 20 October

Clear. High 73°, low 51°.

Pressure29.85 inHg
Wind20.5 mph S
Humidity37%
Visibility—
Dew point38°
Wed, 2171° / 52°0Clear
71 °Clear

Riverside, Wednesday, 21 October

Clear. High 71°, low 52°.

Pressure29.97 inHg
Wind13.8 mph S
Humidity40%
Visibility—
Dew point40°
Thu, 2270° / 51°0.02Light rain
70 °Light rain

Riverside, Thursday, 22 October

Light rain. High 70°, low 51°.

Pressure30.09 inHg
Wind10.7 mph SE
Humidity45%
Visibility—
Dew point42°
Fri, 2371° / 52°0Clear
71 °Clear

Riverside, Friday, 23 October

Clear. High 71°, low 52°.

Pressure30.15 inHg
Wind6.5 mph N
Humidity55%
Visibility—
Dew point48°
Sat, 2479° / 53°0Clear
79 °Clear

Riverside, Saturday, 24 October

Clear. High 79°, low 53°.

Pressure30.00 inHg
Wind17.3 mph S
Humidity44%
Visibility—
Dew point46°
Sun, 2563° / 47°0Overcast
63 °Overcast

Riverside, Sunday, 25 October

Overcast. High 63°, low 47°.

Pressure30.15 inHg
Wind21 mph NW
Humidity31%
Visibility—
Dew point29°
Mon, 2655° / 40°0Clear
55 °Clear

Riverside, Monday, 26 October

Clear. High 55°, low 40°.

Pressure30.09 inHg
Wind13.4 mph NW
Humidity45%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2756° / 39°0.06Climate normal
56 °Climate normal

Riverside, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high56°
Average low39°
Average precipitation0.06 in
Chance of precipitation33%
Record high76° (1999)
Record low7° (2020)
Wed, 2855° / 38°0.03Climate normal
55 °Climate normal

Riverside, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high55°
Average low38°
Average precipitation0.03 in
Chance of precipitation15%
Record high76° (2016)
Record low17° (2017)
Thu, 2954° / 38°0.07Climate normal
54 °Climate normal

Riverside, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high54°
Average low38°
Average precipitation0.07 in
Chance of precipitation20%
Record high72° (1978)
Record low20° (1991)
Fri, 3053° / 37°0.12Climate normal
53 °Climate normal

Riverside, Friday, 30 October

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.12 in
Chance of precipitation30%
Record high74° (1965)
Record low16° (1991)
Sat, 3153° / 35°0.06Climate normal
53 °Climate normal

Riverside, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high53°
Average low35°
Average precipitation0.06 in
Chance of precipitation18%
Record high77° (2016)
Record low11° (2002)
Sun, 0152° / 36°0.04Climate normal
52 °Climate normal

Riverside, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high52°
Average low36°
Average precipitation0.04 in
Chance of precipitation15%
Record high73° (1990)
Record low14° (2002)
Mon, 0251° / 35°0.04Climate normal
51 °Climate normal

Riverside, Monday, 2 November

Climate normal for this date — 60-year average.

Average high51°
Average low35°
Average precipitation0.04 in
Chance of precipitation13%
Record high75° (2005)
Record low11° (1991)
Tue, 0351° / 35°0.04Climate normal
51 °Climate normal

Riverside, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high51°
Average low35°
Average precipitation0.04 in
Chance of precipitation15%
Record high75° (1978)
Record low6° (1991)
Wed, 0451° / 33°0.01Climate normal
51 °Climate normal

Riverside, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high51°
Average low33°
Average precipitation0.01 in
Chance of precipitation7%
Record high74° (2020)
Record low-10° (1991)
Thu, 0551° / 34°0.03Climate normal
51 °Climate normal

Riverside, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high51°
Average low34°
Average precipitation0.03 in
Chance of precipitation17%
Record high75° (2001)
Record low13° (2003)
Fri, 0650° / 33°0.02Climate normal
50 °Climate normal

Riverside, Friday, 6 November

Climate normal for this date — 60-year average.

Average high50°
Average low33°
Average precipitation0.02 in
Chance of precipitation15%
Record high80° (2020)
Record low4° (2003)
Sat, 0751° / 33°0.03Climate normal
51 °Climate normal

Riverside, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high51°
Average low33°
Average precipitation0.03 in
Chance of precipitation13%
Record high76° (2020)
Record low-3° (1991)
Sun, 0849° / 33°0.07Climate normal
49 °Climate normal

Riverside, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high49°
Average low33°
Average precipitation0.07 in
Chance of precipitation15%
Record high76° (1999)
Record low2° (1991)
Mon, 0947° / 32°0.13Climate normal
47 °Climate normal

Riverside, Monday, 9 November

Climate normal for this date — 60-year average.

Average high47°
Average low32°
Average precipitation0.13 in
Chance of precipitation25%
Record high71° (1999)
Record low12° (2018)

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 Riverside, SD 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 Riverside, SD 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.