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As of 14:20 CDT

Weather in Rio, MS

78°Current weather

Rio, Friday, 9 October, 14:20

Overcast. Feels like 79°. High 79°, low 57°.

Pressure29.94 inHg
Wind1 mph N
Humidity70%
Visibility6.2 mi
Dew point67°

Monthly outlook for Rio, MS: average high 77°, average low 55.8°. That is 0.9° above the climate normal for October. Precipitation is expected on 2 days (about 2.4 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 15 October (91.5°), the coolest 18 October (41°).

77°/55.8°
Average high / low
+0.9°
Above normal
2 / 4
Wet days / normal
2.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October80°76.5°+1.9°
19 October – 28 October72.1°72.8°-0.4°
29 October – 7 Novemberat normal69.4°—

October records over 66 years

95°3 October 2019All-time high
33.3°31 October 1993All-time low

Climate normals and records are computed from the nearest reference point — Union (14 mi).

Sat, 1068° / 56°2.2Heavy rain
68 °Heavy rain

Rio, Saturday, 10 October

Heavy rain. High 68°, low 56°.

Pressure29.71 inHg
Wind19.1 mph NW
Humidity97%
Visibility3.0 mi
Dew point61°
Sun, 1186° / 56°0Clear
86 °Clear

Rio, Sunday, 11 October

Clear. High 86°, low 56°.

Pressure30.09 inHg
Wind6.9 mph W
Humidity60%
Visibility6.2 mi
Dew point66°
Mon, 1287° / 63°0Clear
87 °Clear

Rio, Monday, 12 October

Clear. High 87°, low 63°.

Pressure30.12 inHg
Wind3.9 mph SW
Humidity52%
Visibility6.2 mi
Dew point64°
Tue, 1386° / 61°0Clear
86 °Clear

Rio, Tuesday, 13 October

Clear. High 86°, low 61°.

Pressure30.06 inHg
Wind3.5 mph W
Humidity67%
Visibility6.2 mi
Dew point69°
Wed, 1487° / 71°0Light rain
87 °Light rain

Rio, Wednesday, 14 October

Light rain. High 87°, low 71°.

Pressure30.00 inHg
Wind6.6 mph S
Humidity64%
Visibility—
Dew point70°
Thu, 1591° / 70°0Clear
91 °Clear

Rio, Thursday, 15 October

Clear. High 91°, low 70°.

Pressure30.03 inHg
Wind6.8 mph S
Humidity38%
Visibility—
Dew point59°
Fri, 1688° / 65°0Clear
88 °Clear

Rio, Friday, 16 October

Clear. High 88°, low 65°.

Pressure30.06 inHg
Wind10.4 mph N
Humidity41%
Visibility—
Dew point58°
Sat, 1764° / 51°0Mostly clear
64 °Mostly clear

Rio, Saturday, 17 October

Mostly clear. High 64°, low 51°.

Pressure30.30 inHg
Wind13.5 mph N
Humidity28%
Visibility—
Dew point29°
Sun, 1864° / 41°0Overcast
64 °Overcast

Rio, Sunday, 18 October

Overcast. High 64°, low 41°.

Pressure30.27 inHg
Wind9.6 mph NE
Humidity27%
Visibility—
Dew point24°
Mon, 1970° / 44°0Overcast
70 °Overcast

Rio, Monday, 19 October

Overcast. High 70°, low 44°.

Pressure30.27 inHg
Wind8.2 mph E
Humidity26%
Visibility—
Dew point29°
Tue, 2075° / 48°0Mostly clear
75 °Mostly clear

Rio, Tuesday, 20 October

Mostly clear. High 75°, low 48°.

Pressure30.27 inHg
Wind9 mph E
Humidity43%
Visibility—
Dew point46°
Wed, 2177° / 52°0Clear
77 °Clear

Rio, Wednesday, 21 October

Clear. High 77°, low 52°.

Pressure30.21 inHg
Wind9.4 mph E
Humidity45%
Visibility—
Dew point49°
Thu, 2273° / 57°0Overcast
73 °Overcast

Rio, Thursday, 22 October

Overcast. High 73°, low 57°.

Pressure30.12 inHg
Wind8.2 mph E
Humidity56%
Visibility—
Dew point52°
Fri, 2376° / 57°0Clear
76 °Clear

Rio, Friday, 23 October

Clear. High 76°, low 57°.

Pressure30.00 inHg
Wind10.4 mph N
Humidity50%
Visibility—
Dew point53°
Sat, 2462° / 45°0Clear
62 °Clear

Rio, Saturday, 24 October

Clear. High 62°, low 45°.

Pressure30.15 inHg
Wind11.8 mph N
Humidity24%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2571° / 55°0.15Climate normal
71 °Climate normal

Rio, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high71°
Average low55°
Average precipitation0.15 in
Chance of precipitation32%
Record high84° (2016)
Record low41° (1965)
Mon, 2672° / 54°0.15Climate normal
72 °Climate normal

Rio, Monday, 26 October

Climate normal for this date — 60-year average.

Average high72°
Average low54°
Average precipitation0.15 in
Chance of precipitation23%
Record high85° (2010)
Record low41° (2005)
Tue, 2772° / 55°0.15Climate normal
72 °Climate normal

Rio, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high72°
Average low55°
Average precipitation0.15 in
Chance of precipitation27%
Record high85° (2023)
Record low42° (1976)
Wed, 2871° / 54°0.11Climate normal
71 °Climate normal

Rio, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high71°
Average low54°
Average precipitation0.11 in
Chance of precipitation27%
Record high85° (2016)
Record low38° (2008)
Thu, 2971° / 53°0.14Climate normal
71 °Climate normal

Rio, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high71°
Average low53°
Average precipitation0.14 in
Chance of precipitation22%
Record high86° (2016)
Record low36° (2017)
Fri, 3072° / 54°0.12Climate normal
72 °Climate normal

Rio, Friday, 30 October

Climate normal for this date — 60-year average.

Average high72°
Average low54°
Average precipitation0.12 in
Chance of precipitation20%
Record high86° (2016)
Record low41° (1993)
Sat, 3172° / 54°0.12Climate normal
72 °Climate normal

Rio, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high72°
Average low54°
Average precipitation0.12 in
Chance of precipitation23%
Record high87° (2016)
Record low33° (1993)
Sun, 0171° / 54°0.14Climate normal
71 °Climate normal

Rio, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high71°
Average low54°
Average precipitation0.14 in
Chance of precipitation25%
Record high86° (2016)
Record low30° (1993)
Mon, 0269° / 52°0.09Climate normal
69 °Climate normal

Rio, Monday, 2 November

Climate normal for this date — 60-year average.

Average high69°
Average low52°
Average precipitation0.09 in
Chance of precipitation22%
Record high83° (2016)
Record low35° (2023)
Tue, 0369° / 51°0.07Climate normal
69 °Climate normal

Rio, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high69°
Average low51°
Average precipitation0.07 in
Chance of precipitation20%
Record high84° (2016)
Record low28° (1966)
Wed, 0468° / 51°0.07Climate normal
68 °Climate normal

Rio, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high68°
Average low51°
Average precipitation0.07 in
Chance of precipitation28%
Record high81° (2016)
Record low28° (1991)
Thu, 0567° / 51°0.1Climate normal
67 °Climate normal

Rio, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high67°
Average low51°
Average precipitation0.1 in
Chance of precipitation30%
Record high81° (2024)
Record low29° (1991)
Fri, 0668° / 50°0.08Climate normal
68 °Climate normal

Rio, Friday, 6 November

Climate normal for this date — 60-year average.

Average high68°
Average low50°
Average precipitation0.08 in
Chance of precipitation28%
Record high84° (2024)
Record low33° (1967)
Sat, 0768° / 51°0.14Climate normal
68 °Climate normal

Rio, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high68°
Average low51°
Average precipitation0.14 in
Chance of precipitation28%
Record high83° (2022)
Record low32° (1993)

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 Rio, MS 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 Rio, MS 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.