As of 03:15 EDT

Weather in Santiago, MI

63°Current weather

Santiago, Sunday, 9 August, 03:15

Clear. Feels like 63°. High 85°, low 63°.

Pressure29.97 inHg
Wind6.5 mph W
Humidity78%
Visibility6.2 mi
Dew point56°

Monthly outlook for Santiago, MI: average high 78.5°, average low 61.1°. That is 1.1° above the climate normal for August. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 20 August (93.2°), the coolest 14 August (51.2°).

78.5°/61.1°
Average high / low
+1.1°
Above normal
3 / 5
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August77.5°77°+0.2°
19 August – 28 August80.3°76.1°+2.3°
29 August – 7 Septemberat normal74.4°

August records over 66 years

95.9°8 August 2001All-time high
46.2°30 August 2025All-time low

Climate normals and records are computed from the nearest reference point — Omer (9 mi).

Mon, 1085° / 67°0.2Rain
85 °Rain

Santiago, Monday, 10 August

Rain. High 85°, low 67°.

Pressure29.85 inHg
Wind6.6 mph W
Humidity63%
Visibility6.2 mi
Dew point66°
Tue, 1176° / 62°0.02Light rain
76 °Light rain

Santiago, Tuesday, 11 August

Light rain. High 76°, low 62°.

Pressure29.91 inHg
Wind6.5 mph S
Humidity55%
Visibility6.2 mi
Dew point58°
Wed, 1283° / 62°0.02Light rain
83 °Light rain

Santiago, Wednesday, 12 August

Light rain. High 83°, low 62°.

Pressure29.77 inHg
Wind5.5 mph NW
Humidity54%
Visibility6.2 mi
Dew point60°
Thu, 1373° / 54°0Clear
73 °Clear

Santiago, Thursday, 13 August

Clear. High 73°, low 54°.

Pressure29.97 inHg
Wind12.5 mph N
Humidity34%
Visibility
Dew point40°
Fri, 1473° / 51°0Clear
73 °Clear

Santiago, Friday, 14 August

Clear. High 73°, low 51°.

Pressure30.12 inHg
Wind11.6 mph E
Humidity38%
Visibility
Dew point43°
Sat, 1573° / 51°0Overcast
73 °Overcast

Santiago, Saturday, 15 August

Overcast. High 73°, low 51°.

Pressure30.30 inHg
Wind7 mph N
Humidity40%
Visibility
Dew point44°
Sun, 1671° / 61°0.02Light rain
71 °Light rain

Santiago, Sunday, 16 August

Light rain. High 71°, low 61°.

Pressure30.12 inHg
Wind7.7 mph NE
Humidity55%
Visibility
Dew point53°
Mon, 1779° / 62°0Overcast
79 °Overcast

Santiago, Monday, 17 August

Overcast. High 79°, low 62°.

Pressure30.03 inHg
Wind10.6 mph E
Humidity45%
Visibility
Dew point54°
Tue, 1877° / 57°0Partly cloudy
77 °Partly cloudy

Santiago, Tuesday, 18 August

Partly cloudy. High 77°, low 57°.

Pressure30.06 inHg
Wind12 mph E
Humidity47%
Visibility
Dew point52°
Wed, 1986° / 63°0Overcast
86 °Overcast

Santiago, Wednesday, 19 August

Overcast. High 86°, low 63°.

Pressure29.94 inHg
Wind11.4 mph SW
Humidity51%
Visibility
Dew point62°
Thu, 2093° / 68°0.06Light rain
93 °Light rain

Santiago, Thursday, 20 August

Light rain. High 93°, low 68°.

Pressure29.77 inHg
Wind9.1 mph SW
Humidity67%
Visibility
Dew point67°
Fri, 2183° / 65°0Clear
83 °Clear

Santiago, Friday, 21 August

Clear. High 83°, low 65°.

Pressure29.91 inHg
Wind11.5 mph E
Humidity46%
Visibility
Dew point58°
Sat, 2280° / 60°0Clear
80 °Clear

Santiago, Saturday, 22 August

Clear. High 80°, low 60°.

Pressure29.97 inHg
Wind12.5 mph NE
Humidity35%
Visibility
Dew point47°
Sun, 2370° / 66°0.59Rain
70 °Rain

Santiago, Sunday, 23 August

Rain. High 70°, low 66°.

Pressure29.91 inHg
Wind16 mph NE
Humidity83%
Visibility
Dew point63°
Mon, 2470° / 63°0.03Light rain
70 °Light rain

Santiago, Monday, 24 August

Light rain. High 70°, low 63°.

Pressure30.12 inHg
Wind15.5 mph NE
Humidity66%
Visibility
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2577° / 64°0.09Climate normal
77 °Climate normal

Santiago, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high77°
Average low64°
Average precipitation0.09 in
Chance of precipitation20%
Record high91° (2021)
Record low48° (2017)
Wed, 2677° / 64°0.14Climate normal
77 °Climate normal

Santiago, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high77°
Average low64°
Average precipitation0.14 in
Chance of precipitation38%
Record high89° (2024)
Record low49° (2025)
Thu, 2777° / 64°0.13Climate normal
77 °Climate normal

Santiago, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high77°
Average low64°
Average precipitation0.13 in
Chance of precipitation43%
Record high94° (1973)
Record low47° (2025)
Fri, 2876° / 64°0.09Climate normal
76 °Climate normal

Santiago, Friday, 28 August

Climate normal for this date — 60-year average.

Average high76°
Average low64°
Average precipitation0.09 in
Chance of precipitation38%
Record high92° (1973)
Record low47° (1986)
Sat, 2976° / 63°0.11Climate normal
76 °Climate normal

Santiago, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high76°
Average low63°
Average precipitation0.11 in
Chance of precipitation38%
Record high91° (2021)
Record low48° (2025)
Sun, 3075° / 62°0.08Climate normal
75 °Climate normal

Santiago, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high75°
Average low62°
Average precipitation0.08 in
Chance of precipitation32%
Record high89° (1973)
Record low46° (2025)
Mon, 3175° / 62°0.04Climate normal
75 °Climate normal

Santiago, Monday, 31 August

Climate normal for this date — 60-year average.

Average high75°
Average low62°
Average precipitation0.04 in
Chance of precipitation20%
Record high87° (2010)
Record low47° (2025)
Tue, 0174° / 61°0.07Climate normal
74 °Climate normal

Santiago, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high74°
Average low61°
Average precipitation0.07 in
Chance of precipitation27%
Record high87° (1973)
Record low49° (2017)
Wed, 0274° / 62°0.07Climate normal
74 °Climate normal

Santiago, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high74°
Average low62°
Average precipitation0.07 in
Chance of precipitation27%
Record high88° (1973)
Record low49° (2017)
Thu, 0375° / 62°0.12Climate normal
75 °Climate normal

Santiago, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high75°
Average low62°
Average precipitation0.12 in
Chance of precipitation32%
Record high89° (1973)
Record low50° (1974)
Fri, 0474° / 61°0.09Climate normal
74 °Climate normal

Santiago, Friday, 4 September

Climate normal for this date — 60-year average.

Average high74°
Average low61°
Average precipitation0.09 in
Chance of precipitation27%
Record high91° (2023)
Record low46° (2025)
Sat, 0574° / 61°0.09Climate normal
74 °Climate normal

Santiago, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high74°
Average low61°
Average precipitation0.09 in
Chance of precipitation25%
Record high89° (2023)
Record low49° (1984)
Sun, 0674° / 61°0.07Climate normal
74 °Climate normal

Santiago, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high74°
Average low61°
Average precipitation0.07 in
Chance of precipitation27%
Record high85° (1998)
Record low47° (1988)
Mon, 0773° / 60°0.07Climate normal
73 °Climate normal

Santiago, Monday, 7 September

Climate normal for this date — 60-year average.

Average high73°
Average low60°
Average precipitation0.07 in
Chance of precipitation37%
Record high87° (1960)
Record low45° (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 Santiago, 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 Santiago, 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.