As of 18:21 EDT

Weather in St. Ignace, MI

57°Current weather

St. Ignace, Thursday, 8 October, 18:21

Overcast. Feels like 56°. High 60°, low 49°.

Pressure29.97 inHg
Wind12.7 mph W
Humidity63%
Visibility6.2 mi
Dew point46°

Monthly outlook for St. Ignace, MI: average high 57.9°, average low 48°. That is 3.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 7 days and 1.8 inches. The warmest day looks like 10 October (73°), the coolest 18 October (36.4°).

57.9°/48°
Average high / low
+3.4°
Above normal
4 / 7
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 October – 17 October59.4°53.1°+3.5°
18 October – 27 October55.3°49.1°+3.5°
28 October – 6 Novemberat normal45.8°—

October records over 66 years

74.1°8 October 2007All-time high
23.9°30 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Mackinac Island (5 mi).

Fri, 0959° / 46°0Light rain
59 °Light rain

St. Ignace, Friday, 9 October

Light rain. High 59°, low 46°.

Pressure30.18 inHg
Wind7.2 mph W
Humidity55%
Visibility6.2 mi
Dew point39°
Sat, 1073° / 52°0Clear
73 °Clear

St. Ignace, Saturday, 10 October

Clear. High 73°, low 52°.

Pressure30.12 inHg
Wind10.2 mph E
Humidity71%
Visibility6.2 mi
Dew point53°
Sun, 1167° / 62°0Overcast
67 °Overcast

St. Ignace, Sunday, 11 October

Overcast. High 67°, low 62°.

Pressure30.00 inHg
Wind12.6 mph SW
Humidity64%
Visibility6.2 mi
Dew point54°
Mon, 1264° / 53°0Overcast
64 °Overcast

St. Ignace, Monday, 12 October

Overcast. High 64°, low 53°.

Pressure29.71 inHg
Wind17 mph SW
Humidity84%
Visibility6.2 mi
Dew point59°
Tue, 1351° / 43°0Partly cloudy
51 °Partly cloudy

St. Ignace, Tuesday, 13 October

Partly cloudy. High 51°, low 43°.

Pressure30.09 inHg
Wind12.7 mph N
Humidity52%
Visibility—
Dew point34°
Wed, 1452° / 42°0Partly cloudy
52 °Partly cloudy

St. Ignace, Wednesday, 14 October

Partly cloudy. High 52°, low 42°.

Pressure30.18 inHg
Wind17.5 mph SE
Humidity72%
Visibility—
Dew point38°
Thu, 1564° / 50°0.16Light rain
64 °Light rain

St. Ignace, Thursday, 15 October

Light rain. High 64°, low 50°.

Pressure29.80 inHg
Wind18.2 mph SW
Humidity85%
Visibility—
Dew point58°
Fri, 1659° / 46°0Overcast
59 °Overcast

St. Ignace, Friday, 16 October

Overcast. High 59°, low 46°.

Pressure30.12 inHg
Wind22.8 mph NW
Humidity61%
Visibility—
Dew point37°
Sat, 1746° / 41°0.05Light rain
46 °Light rain

St. Ignace, Saturday, 17 October

Light rain. High 46°, low 41°.

Pressure30.36 inHg
Wind17.8 mph NW
Humidity50%
Visibility—
Dew point27°
Sun, 1849° / 36°0.01Light rain
49 °Light rain

St. Ignace, Sunday, 18 October

Light rain. High 49°, low 36°.

Pressure30.53 inHg
Wind10.8 mph SW
Humidity54%
Visibility—
Dew point29°
Mon, 1955° / 49°0Clear
55 °Clear

St. Ignace, Monday, 19 October

Clear. High 55°, low 49°.

Pressure30.36 inHg
Wind18.7 mph SW
Humidity56%
Visibility—
Dew point39°
Tue, 2058° / 49°0Overcast
58 °Overcast

St. Ignace, Tuesday, 20 October

Overcast. High 58°, low 49°.

Pressure30.27 inHg
Wind12.8 mph SW
Humidity55%
Visibility—
Dew point41°
Wed, 2156° / 53°0.27Rain
56 °Rain

St. Ignace, Wednesday, 21 October

Rain. High 56°, low 53°.

Pressure29.97 inHg
Wind14.1 mph SW
Humidity89%
Visibility—
Dew point51°
Thu, 2257° / 51°0.02Light rain
57 °Light rain

St. Ignace, Thursday, 22 October

Light rain. High 57°, low 51°.

Pressure30.00 inHg
Wind11.5 mph W
Humidity78%
Visibility—
Dew point49°
Fri, 2357° / 47°0Overcast
57 °Overcast

St. Ignace, Friday, 23 October

Overcast. High 57°, low 47°.

Pressure30.18 inHg
Wind10.1 mph N
Humidity64%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2449° / 44°0.12Climate normal
49 °Climate normal

St. Ignace, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high49°
Average low44°
Average precipitation0.12 in
Chance of precipitation43%
Record high67° (1963)
Record low31° (1981)
Sun, 2549° / 43°0.07Climate normal
49 °Climate normal

St. Ignace, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high49°
Average low43°
Average precipitation0.07 in
Chance of precipitation33%
Record high65° (1963)
Record low33° (1962)
Mon, 2648° / 43°0.09Climate normal
48 °Climate normal

St. Ignace, Monday, 26 October

Climate normal for this date — 60-year average.

Average high48°
Average low43°
Average precipitation0.09 in
Chance of precipitation37%
Record high63° (2000)
Record low29° (1976)
Tue, 2748° / 42°0.11Climate normal
48 °Climate normal

St. Ignace, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high48°
Average low42°
Average precipitation0.11 in
Chance of precipitation43%
Record high62° (1971)
Record low29° (1976)
Wed, 2847° / 41°0.07Climate normal
47 °Climate normal

St. Ignace, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high47°
Average low41°
Average precipitation0.07 in
Chance of precipitation37%
Record high59° (1984)
Record low29° (1965)
Thu, 2946° / 41°0.05Climate normal
46 °Climate normal

St. Ignace, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high46°
Average low41°
Average precipitation0.05 in
Chance of precipitation25%
Record high61° (2024)
Record low31° (2020)
Fri, 3047° / 41°0.09Climate normal
47 °Climate normal

St. Ignace, Friday, 30 October

Climate normal for this date — 60-year average.

Average high47°
Average low41°
Average precipitation0.09 in
Chance of precipitation30%
Record high61° (2024)
Record low24° (2020)
Sat, 3147° / 41°0.1Climate normal
47 °Climate normal

St. Ignace, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high47°
Average low41°
Average precipitation0.1 in
Chance of precipitation47%
Record high59° (1971)
Record low31° (2023)
Sun, 0146° / 41°0.14Climate normal
46 °Climate normal

St. Ignace, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high46°
Average low41°
Average precipitation0.14 in
Chance of precipitation47%
Record high56° (1999)
Record low29° (2023)
Mon, 0246° / 40°0.17Climate normal
46 °Climate normal

St. Ignace, Monday, 2 November

Climate normal for this date — 60-year average.

Average high46°
Average low40°
Average precipitation0.17 in
Chance of precipitation38%
Record high58° (1961)
Record low27° (1966)
Tue, 0345° / 39°0.08Climate normal
45 °Climate normal

St. Ignace, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high45°
Average low39°
Average precipitation0.08 in
Chance of precipitation37%
Record high59° (1961)
Record low27° (1989)
Wed, 0444° / 39°0.1Climate normal
44 °Climate normal

St. Ignace, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high44°
Average low39°
Average precipitation0.1 in
Chance of precipitation40%
Record high55° (2008)
Record low29° (1991)
Thu, 0544° / 39°0.15Climate normal
44 °Climate normal

St. Ignace, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high44°
Average low39°
Average precipitation0.15 in
Chance of precipitation42%
Record high57° (2015)
Record low27° (1962)
Fri, 0644° / 38°0.11Climate normal
44 °Climate normal

St. Ignace, Friday, 6 November

Climate normal for this date — 60-year average.

Average high44°
Average low38°
Average precipitation0.11 in
Chance of precipitation37%
Record high56° (2015)
Record low23° (1991)

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. Ignace, 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. Ignace, 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.