As of 23:22 EDT

Weather in Thornton, MI

67°Current weather

Thornton, Saturday, 8 August, 23:22

Clear. Feels like 67°. High 86°, low 67°.

Pressure29.94 inHg
Wind7 mph N
Humidity89%
Visibility6.2 mi
Dew point64°

Monthly outlook for Thornton, MI: average high 80.5°, average low 59°. That is 1.5° above the climate normal for August. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 10 August (88.9°), the coolest 13 August (50°).

80.5°/59°
Average high / low
+1.5°
Above normal
5 / 5
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August81.3°78.3°+1.7°
18 August – 27 August79.1°77.2°+1.1°
28 August – 6 Septemberat normal76.1°

August records over 66 years

96.3°8 August 2001All-time high
46.6°30 August 2025All-time low

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

Sun, 0988° / 66°0Clear
88 °Clear

Thornton, Sunday, 9 August

Clear. High 88°, low 66°.

Pressure30.03 inHg
Wind10.8 mph S
Humidity44%
Visibility6.2 mi
Dew point56°
Mon, 1089° / 68°0.09Rain
89 °Rain

Thornton, Monday, 10 August

Rain. High 89°, low 68°.

Pressure29.91 inHg
Wind9.6 mph W
Humidity92%
Visibility6.2 mi
Dew point70°
Tue, 1182° / 64°0.5Heavy rain
82 °Heavy rain

Thornton, Tuesday, 11 August

Heavy rain. High 82°, low 64°.

Pressure29.85 inHg
Wind11 mph S
Humidity57%
Visibility6.2 mi
Dew point65°
Wed, 1282° / 62°0.11Light rain
82 °Light rain

Thornton, Wednesday, 12 August

Light rain. High 82°, low 62°.

Pressure29.77 inHg
Wind6.6 mph NW
Humidity63%
Visibility6.2 mi
Dew point64°
Thu, 1371° / 50°0Overcast
71 °Overcast

Thornton, Thursday, 13 August

Overcast. High 71°, low 50°.

Pressure30.00 inHg
Wind15 mph NW
Humidity42%
Visibility
Dew point45°
Fri, 1476° / 53°0Clear
76 °Clear

Thornton, Friday, 14 August

Clear. High 76°, low 53°.

Pressure30.06 inHg
Wind11.2 mph NE
Humidity39%
Visibility
Dew point47°
Sat, 1575° / 56°0Overcast
75 °Overcast

Thornton, Saturday, 15 August

Overcast. High 75°, low 56°.

Pressure30.27 inHg
Wind9.4 mph NE
Humidity45%
Visibility
Dew point51°
Sun, 1680° / 55°0Overcast
80 °Overcast

Thornton, Sunday, 16 August

Overcast. High 80°, low 55°.

Pressure30.15 inHg
Wind11.3 mph S
Humidity39%
Visibility
Dew point50°
Mon, 1784° / 62°0Overcast
84 °Overcast

Thornton, Monday, 17 August

Overcast. High 84°, low 62°.

Pressure30.00 inHg
Wind6.2 mph SW
Humidity39%
Visibility
Dew point53°
Tue, 1887° / 63°0.02Light rain
87 °Light rain

Thornton, Tuesday, 18 August

Light rain. High 87°, low 63°.

Pressure29.94 inHg
Wind12.3 mph S
Humidity39%
Visibility
Dew point56°
Wed, 1974° / 61°0.1Light rain
74 °Light rain

Thornton, Wednesday, 19 August

Light rain. High 74°, low 61°.

Pressure29.77 inHg
Wind20.7 mph W
Humidity70%
Visibility
Dew point62°
Thu, 2075° / 55°0Overcast
75 °Overcast

Thornton, Thursday, 20 August

Overcast. High 75°, low 55°.

Pressure29.88 inHg
Wind16.9 mph NW
Humidity44%
Visibility
Dew point49°
Fri, 2172° / 51°0Overcast
72 °Overcast

Thornton, Friday, 21 August

Overcast. High 72°, low 51°.

Pressure30.06 inHg
Wind13.4 mph NE
Humidity42%
Visibility
Dew point46°
Sat, 2277° / 50°0Overcast
77 °Overcast

Thornton, Saturday, 22 August

Overcast. High 77°, low 50°.

Pressure29.97 inHg
Wind11 mph S
Humidity31%
Visibility
Dew point41°
Sun, 2389° / 62°0Mostly clear
89 °Mostly clear

Thornton, Sunday, 23 August

Mostly clear. High 89°, low 62°.

Pressure29.74 inHg
Wind24.4 mph W
Humidity39%
Visibility
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2477° / 63°0.05Climate normal
77 °Climate normal

Thornton, Monday, 24 August

Climate normal for this date — 60-year average.

Average high77°
Average low63°
Average precipitation0.05 in
Chance of precipitation25%
Record high91° (1968)
Record low50° (1971)
Tue, 2577° / 63°0.08Climate normal
77 °Climate normal

Thornton, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high77°
Average low63°
Average precipitation0.08 in
Chance of precipitation20%
Record high89° (2021)
Record low52° (1977)
Wed, 2678° / 64°0.09Climate normal
78 °Climate normal

Thornton, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high78°
Average low64°
Average precipitation0.09 in
Chance of precipitation35%
Record high88° (2024)
Record low50° (2025)
Thu, 2778° / 64°0.11Climate normal
78 °Climate normal

Thornton, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high78°
Average low64°
Average precipitation0.11 in
Chance of precipitation38%
Record high93° (1973)
Record low50° (2025)
Fri, 2877° / 64°0.17Climate normal
77 °Climate normal

Thornton, Friday, 28 August

Climate normal for this date — 60-year average.

Average high77°
Average low64°
Average precipitation0.17 in
Chance of precipitation47%
Record high93° (1973)
Record low49° (1986)
Sat, 2977° / 64°0.13Climate normal
77 °Climate normal

Thornton, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high77°
Average low64°
Average precipitation0.13 in
Chance of precipitation32%
Record high91° (1973)
Record low48° (1982)
Sun, 3076° / 63°0.07Climate normal
76 °Climate normal

Thornton, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high76°
Average low63°
Average precipitation0.07 in
Chance of precipitation27%
Record high90° (1991)
Record low47° (2025)
Mon, 3176° / 62°0.05Climate normal
76 °Climate normal

Thornton, Monday, 31 August

Climate normal for this date — 60-year average.

Average high76°
Average low62°
Average precipitation0.05 in
Chance of precipitation22%
Record high91° (2012)
Record low47° (2025)
Tue, 0176° / 62°0.06Climate normal
76 °Climate normal

Thornton, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high76°
Average low62°
Average precipitation0.06 in
Chance of precipitation23%
Record high88° (1973)
Record low51° (2017)
Wed, 0276° / 62°0.08Climate normal
76 °Climate normal

Thornton, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high76°
Average low62°
Average precipitation0.08 in
Chance of precipitation37%
Record high91° (2011)
Record low49° (2017)
Thu, 0376° / 62°0.1Climate normal
76 °Climate normal

Thornton, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high76°
Average low62°
Average precipitation0.1 in
Chance of precipitation28%
Record high89° (1973)
Record low47° (2024)
Fri, 0476° / 62°0.09Climate normal
76 °Climate normal

Thornton, Friday, 4 September

Climate normal for this date — 60-year average.

Average high76°
Average low62°
Average precipitation0.09 in
Chance of precipitation30%
Record high90° (2023)
Record low52° (1974)
Sat, 0575° / 61°0.04Climate normal
75 °Climate normal

Thornton, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high75°
Average low61°
Average precipitation0.04 in
Chance of precipitation20%
Record high89° (2018)
Record low48° (2025)
Sun, 0675° / 61°0.06Climate normal
75 °Climate normal

Thornton, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high75°
Average low61°
Average precipitation0.06 in
Chance of precipitation27%
Record high89° (1998)
Record low48° (1984)

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 Thornton, 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 Thornton, 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.