As of 14:30 CDT

Weather in Marine on St. Croix, MN

82°Current weather

Marine on St. Croix, Sunday, 9 August, 14:30

Overcast. Feels like 87°. High 82°, low 64°.

Pressure29.83 inHg
Wind6.5 mph W
Humidity72%
Visibility6.2 mi
Dew point72°

Monthly outlook for Marine on St. Croix, MN: average high 83.8°, average low 62.5°. That is 3.6° above the climate normal for August. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 20 August (93.2°), the coolest 16 August (58.9°).

83.8°/62.5°
Average high / low
+3.6°
Above normal
6 / 5
Wet days / normal
1.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August81.2°77.6°+2°
19 August – 28 August88.1°76.9°+6.2°
29 August – 7 Septemberat normal75.1°

August records over 66 years

96.8°16 August 1988All-time high
42.6°28 August 1986All-time low

Climate normals and records are computed from the nearest reference point — New Richmond (13 mi).

Mon, 1089° / 66°0.04Light rain
89 °Light rain

Marine on St. Croix, Monday, 10 August

Light rain. High 89°, low 66°.

Pressure29.88 inHg
Wind8 mph SE
Humidity40%
Visibility6.2 mi
Dew point59°
Tue, 1192° / 65°0.3Rain
92 °Rain

Marine on St. Croix, Tuesday, 11 August

Rain. High 92°, low 65°.

Pressure29.83 inHg
Wind4 mph N
Humidity47%
Visibility6.2 mi
Dew point62°
Wed, 1289° / 59°0Overcast
89 °Overcast

Marine on St. Croix, Wednesday, 12 August

Overcast. High 89°, low 59°.

Pressure29.91 inHg
Wind6.1 mph NE
Humidity27%
Visibility6.2 mi
Dew point47°
Thu, 1386° / 64°0.04Light rain
86 °Light rain

Marine on St. Croix, Thursday, 13 August

Light rain. High 86°, low 64°.

Pressure29.94 inHg
Wind7.4 mph SE
Humidity51%
Visibility6.2 mi
Dew point60°
Fri, 1475° / 63°0.01Light rain
75 °Light rain

Marine on St. Croix, Friday, 14 August

Light rain. High 75°, low 63°.

Pressure30.06 inHg
Wind13.7 mph SE
Humidity65%
Visibility
Dew point60°
Sat, 1565° / 62°0.5Rain
65 °Rain

Marine on St. Croix, Saturday, 15 August

Rain. High 65°, low 62°.

Pressure29.94 inHg
Wind10.9 mph E
Humidity95%
Visibility
Dew point62°
Sun, 1676° / 59°0.02Light rain
76 °Light rain

Marine on St. Croix, Sunday, 16 August

Light rain. High 76°, low 59°.

Pressure30.03 inHg
Wind9.1 mph NW
Humidity54%
Visibility
Dew point56°
Mon, 1772° / 63°0.26Light rain
72 °Light rain

Marine on St. Croix, Monday, 17 August

Light rain. High 72°, low 63°.

Pressure29.91 inHg
Wind12.7 mph S
Humidity87%
Visibility
Dew point63°
Tue, 1885° / 63°0.01Light rain
85 °Light rain

Marine on St. Croix, Tuesday, 18 August

Light rain. High 85°, low 63°.

Pressure29.83 inHg
Wind14.8 mph NW
Humidity43%
Visibility
Dew point56°
Wed, 1988° / 60°0Partly cloudy
88 °Partly cloudy

Marine on St. Croix, Wednesday, 19 August

Partly cloudy. High 88°, low 60°.

Pressure29.97 inHg
Wind11.9 mph S
Humidity36%
Visibility
Dew point52°
Thu, 2093° / 65°0.06Light rain
93 °Light rain

Marine on St. Croix, Thursday, 20 August

Light rain. High 93°, low 65°.

Pressure29.77 inHg
Wind15.2 mph NW
Humidity47%
Visibility
Dew point62°
Fri, 2185° / 60°0Overcast
85 °Overcast

Marine on St. Croix, Friday, 21 August

Overcast. High 85°, low 60°.

Pressure30.00 inHg
Wind7.2 mph N
Humidity38%
Visibility
Dew point51°
Sat, 2289° / 61°0Overcast
89 °Overcast

Marine on St. Croix, Saturday, 22 August

Overcast. High 89°, low 61°.

Pressure29.91 inHg
Wind16.2 mph SW
Humidity42%
Visibility
Dew point51°
Sun, 2388° / 64°0.01Light rain
88 °Light rain

Marine on St. Croix, Sunday, 23 August

Light rain. High 88°, low 64°.

Pressure29.94 inHg
Wind12.1 mph N
Humidity29%
Visibility
Dew point47°
Mon, 2485° / 60°0Partly cloudy
85 °Partly cloudy

Marine on St. Croix, Monday, 24 August

Partly cloudy. High 85°, low 60°.

Pressure30.06 inHg
Wind13.2 mph NW
Humidity25%
Visibility
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 62°0.13Climate normal
78 °Climate normal

Marine on St. Croix, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.13 in
Chance of precipitation37%
Record high92° (2013)
Record low49° (2025)
Wed, 2677° / 62°0.19Climate normal
77 °Climate normal

Marine on St. Croix, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high77°
Average low62°
Average precipitation0.19 in
Chance of precipitation45%
Record high91° (2013)
Record low46° (1964)
Thu, 2777° / 61°0.19Climate normal
77 °Climate normal

Marine on St. Croix, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high77°
Average low61°
Average precipitation0.19 in
Chance of precipitation42%
Record high91° (1991)
Record low46° (1971)
Fri, 2876° / 61°0.1Climate normal
76 °Climate normal

Marine on St. Croix, Friday, 28 August

Climate normal for this date — 60-year average.

Average high76°
Average low61°
Average precipitation0.1 in
Chance of precipitation38%
Record high91° (1984)
Record low43° (1986)
Sat, 2977° / 61°0.09Climate normal
77 °Climate normal

Marine on St. Croix, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high77°
Average low61°
Average precipitation0.09 in
Chance of precipitation27%
Record high91° (2013)
Record low46° (1965)
Sun, 3076° / 60°0.11Climate normal
76 °Climate normal

Marine on St. Croix, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high76°
Average low60°
Average precipitation0.11 in
Chance of precipitation32%
Record high94° (2012)
Record low48° (2009)
Mon, 3176° / 59°0.12Climate normal
76 °Climate normal

Marine on St. Croix, Monday, 31 August

Climate normal for this date — 60-year average.

Average high76°
Average low59°
Average precipitation0.12 in
Chance of precipitation27%
Record high88° (1960)
Record low46° (1967)
Tue, 0175° / 59°0.11Climate normal
75 °Climate normal

Marine on St. Croix, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high75°
Average low59°
Average precipitation0.11 in
Chance of precipitation27%
Record high92° (2011)
Record low43° (1974)
Wed, 0276° / 60°0.1Climate normal
76 °Climate normal

Marine on St. Croix, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high76°
Average low60°
Average precipitation0.1 in
Chance of precipitation35%
Record high90° (2023)
Record low44° (1974)
Thu, 0375° / 60°0.15Climate normal
75 °Climate normal

Marine on St. Croix, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high75°
Average low60°
Average precipitation0.15 in
Chance of precipitation35%
Record high93° (2023)
Record low39° (1974)
Fri, 0475° / 58°0.15Climate normal
75 °Climate normal

Marine on St. Croix, Friday, 4 September

Climate normal for this date — 60-year average.

Average high75°
Average low58°
Average precipitation0.15 in
Chance of precipitation33%
Record high94° (2023)
Record low42° (1974)
Sat, 0574° / 58°0.15Climate normal
74 °Climate normal

Marine on St. Croix, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high74°
Average low58°
Average precipitation0.15 in
Chance of precipitation28%
Record high89° (2023)
Record low42° (1962)
Sun, 0674° / 58°0.11Climate normal
74 °Climate normal

Marine on St. Croix, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high74°
Average low58°
Average precipitation0.11 in
Chance of precipitation33%
Record high90° (1960)
Record low43° (2025)
Mon, 0774° / 58°0.09Climate normal
74 °Climate normal

Marine on St. Croix, Monday, 7 September

Climate normal for this date — 60-year average.

Average high74°
Average low58°
Average precipitation0.09 in
Chance of precipitation38%
Record high92° (1976)
Record low41° (2025)

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 Marine on St. Croix, MN 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 Marine on St. Croix, MN 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.