As of 23:05 EDT

Weather in St. Louis, MI

66°Current weather

St. Louis, Saturday, 8 August, 23:05

Clear. Feels like 66°. High 83°, low 66°.

Pressure30.00 inHg
Wind7.2 mph NW
Humidity68%
Visibility6.2 mi
Dew point56°

Monthly outlook for St. Louis, MI: average high 80.5°, average low 58.4°. That is 1.1° above the climate normal for August. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 10 August (90.9°), the coolest 21 August (49°).

80.5°/58.4°
Average high / low
+1.1°
Above normal
4 / 5
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August81.4°78.8°+1.5°
18 August – 27 August78.9°78.1°+0.4°
28 August – 6 Septemberat normal76.6°

August records over 66 years

95°1 August 1988All-time high
41°29 August 1982All-time low

Climate normals and records are computed from the nearest reference point — Ithaca (8 mi).

Sun, 0983° / 64°0.08Light rain
83 °Light rain

St. Louis, Sunday, 9 August

Light rain. High 83°, low 64°.

Pressure29.97 inHg
Wind13.1 mph S
Humidity41%
Visibility6.2 mi
Dew point54°
Mon, 1091° / 68°0.04Light rain
91 °Light rain

St. Louis, Monday, 10 August

Light rain. High 91°, low 68°.

Pressure29.88 inHg
Wind6.3 mph NW
Humidity53%
Visibility6.2 mi
Dew point63°
Tue, 1178° / 61°0.83Heavy rain
78 °Heavy rain

St. Louis, Tuesday, 11 August

Heavy rain. High 78°, low 61°.

Pressure29.80 inHg
Wind10.3 mph SE
Humidity71%
Visibility6.2 mi
Dew point68°
Wed, 1283° / 59°0Clear
83 °Clear

St. Louis, Wednesday, 12 August

Clear. High 83°, low 59°.

Pressure29.80 inHg
Wind6.7 mph NW
Humidity56%
Visibility6.2 mi
Dew point61°
Thu, 1375° / 53°0Overcast
75 °Overcast

St. Louis, Thursday, 13 August

Overcast. High 75°, low 53°.

Pressure30.00 inHg
Wind10 mph NW
Humidity38%
Visibility
Dew point44°
Fri, 1480° / 53°0Clear
80 °Clear

St. Louis, Friday, 14 August

Clear. High 80°, low 53°.

Pressure30.06 inHg
Wind13.5 mph N
Humidity34%
Visibility
Dew point45°
Sat, 1575° / 52°0Overcast
75 °Overcast

St. Louis, Saturday, 15 August

Overcast. High 75°, low 52°.

Pressure30.27 inHg
Wind6.6 mph SE
Humidity40%
Visibility
Dew point47°
Sun, 1680° / 55°0Overcast
80 °Overcast

St. Louis, Sunday, 16 August

Overcast. High 80°, low 55°.

Pressure30.12 inHg
Wind8.6 mph SW
Humidity37%
Visibility
Dew point48°
Mon, 1785° / 61°0Overcast
85 °Overcast

St. Louis, Monday, 17 August

Overcast. High 85°, low 61°.

Pressure30.00 inHg
Wind8.7 mph NW
Humidity42%
Visibility
Dew point55°
Tue, 1886° / 63°0.02Light rain
86 °Light rain

St. Louis, Tuesday, 18 August

Light rain. High 86°, low 63°.

Pressure29.94 inHg
Wind13.1 mph SW
Humidity41%
Visibility
Dew point57°
Wed, 1974° / 61°0.04Light rain
74 °Light rain

St. Louis, Wednesday, 19 August

Light rain. High 74°, low 61°.

Pressure29.77 inHg
Wind20.5 mph W
Humidity55%
Visibility
Dew point56°
Thu, 2076° / 57°0Overcast
76 °Overcast

St. Louis, Thursday, 20 August

Overcast. High 76°, low 57°.

Pressure29.91 inHg
Wind16.5 mph N
Humidity35%
Visibility
Dew point45°
Fri, 2177° / 49°0Overcast
77 °Overcast

St. Louis, Friday, 21 August

Overcast. High 77°, low 49°.

Pressure30.06 inHg
Wind8.5 mph E
Humidity32%
Visibility
Dew point41°
Sat, 2275° / 51°0.04Light rain
75 °Light rain

St. Louis, Saturday, 22 August

Light rain. High 75°, low 51°.

Pressure29.97 inHg
Wind10 mph SE
Humidity34%
Visibility
Dew point42°
Sun, 2384° / 60°0.03Light rain
84 °Light rain

St. Louis, Sunday, 23 August

Light rain. High 84°, low 60°.

Pressure29.77 inHg
Wind22 mph W
Humidity29%
Visibility
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2478° / 61°0.09Climate normal
78 °Climate normal

St. Louis, Monday, 24 August

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.09 in
Chance of precipitation30%
Record high92° (2021)
Record low47° (1971)
Tue, 2578° / 61°0.06Climate normal
78 °Climate normal

St. Louis, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.06 in
Chance of precipitation23%
Record high93° (2021)
Record low45° (1977)
Wed, 2679° / 62°0.15Climate normal
79 °Climate normal

St. Louis, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.15 in
Chance of precipitation38%
Record high92° (2024)
Record low49° (2017)
Thu, 2779° / 62°0.11Climate normal
79 °Climate normal

St. Louis, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.11 in
Chance of precipitation40%
Record high93° (1973)
Record low48° (2025)
Fri, 2878° / 62°0.12Climate normal
78 °Climate normal

St. Louis, Friday, 28 August

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.12 in
Chance of precipitation37%
Record high91° (1973)
Record low44° (1986)
Sat, 2977° / 60°0.11Climate normal
77 °Climate normal

St. Louis, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high77°
Average low60°
Average precipitation0.11 in
Chance of precipitation38%
Record high92° (2021)
Record low41° (1982)
Sun, 3077° / 60°0.06Climate normal
77 °Climate normal

St. Louis, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high77°
Average low60°
Average precipitation0.06 in
Chance of precipitation25%
Record high90° (2010)
Record low45° (1976)
Mon, 3177° / 59°0.09Climate normal
77 °Climate normal

St. Louis, Monday, 31 August

Climate normal for this date — 60-year average.

Average high77°
Average low59°
Average precipitation0.09 in
Chance of precipitation20%
Record high91° (2010)
Record low46° (2009)
Tue, 0176° / 59°0.09Climate normal
76 °Climate normal

St. Louis, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high76°
Average low59°
Average precipitation0.09 in
Chance of precipitation32%
Record high88° (1973)
Record low44° (1967)
Wed, 0277° / 59°0.06Climate normal
77 °Climate normal

St. Louis, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high77°
Average low59°
Average precipitation0.06 in
Chance of precipitation32%
Record high90° (2008)
Record low45° (1976)
Thu, 0377° / 59°0.07Climate normal
77 °Climate normal

St. Louis, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high77°
Average low59°
Average precipitation0.07 in
Chance of precipitation25%
Record high89° (1973)
Record low44° (1974)
Fri, 0476° / 58°0.06Climate normal
76 °Climate normal

St. Louis, Friday, 4 September

Climate normal for this date — 60-year average.

Average high76°
Average low58°
Average precipitation0.06 in
Chance of precipitation23%
Record high88° (2023)
Record low43° (1974)
Sat, 0576° / 58°0.07Climate normal
76 °Climate normal

St. Louis, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high76°
Average low58°
Average precipitation0.07 in
Chance of precipitation20%
Record high90° (2023)
Record low44° (1974)
Sun, 0676° / 58°0.07Climate normal
76 °Climate normal

St. Louis, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high76°
Average low58°
Average precipitation0.07 in
Chance of precipitation25%
Record high88° (2016)
Record low43° (1962)

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 St. Louis, MI 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 St. Louis, MI 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.