As of 01:29 EDT

Weather in Hartman, MI

61°

Hartman, Sunday, 9 August, 01:29

Clear. Feels like 61°. High 86°, low 61°.

Pressure30.00 inHg

Wind2.7 mph SE

Humidity96%

Visibility6.2 mi

Dew point60°

See detailed hourly forecast

Monthly outlook for Hartman, MI: average high 75.7°, average low 60.8°. That is 1.8° below the climate normal for August. Precipitation is expected on 3 days (about 4.2 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 9 August (86.4°), the coolest 21 August (53.7°).

75.7°/60.8°

Average high / low

−1.8°

Below normal

3 / 6

Wet days / normal

4.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 August – 18 August	77.4°	79.1°	-1°
19 August – 28 August	72.9°	78.9°	-3.3°
29 August – 7 September	at normal	77.4°	—

August records over 66 years

95.2°1 August 2006All-time high

46°15 August 1964All-time low

Climate normals and records are computed from the nearest reference point — Dowagiac (11 mi).

Mon, 1083° / 68°

1.23

83 °

Hartman, Monday, 10 August

Heavy rain. High 83°, low 68°.

Pressure29.94 inHg

Wind2.9 mph W

Humidity74%

Visibility6.2 mi

Dew point67°

Tue, 1180° / 64°

0.88

80 °

Hartman, Tuesday, 11 August

Heavy rain. High 80°, low 64°.

Pressure29.80 inHg

Wind11.4 mph E

Humidity96%

Visibility6.2 mi

Dew point63°

Wed, 1276° / 64°

76 °

Hartman, Wednesday, 12 August

Overcast. High 76°, low 64°.

Pressure29.83 inHg

Wind6.2 mph NW

Humidity73%

Visibility6.2 mi

Dew point67°

Thu, 1370° / 57°

70 °

Hartman, Thursday, 13 August

Overcast. High 70°, low 57°.

Pressure30.03 inHg

Wind7.7 mph N

Humidity55%

Visibility—

Dew point51°

Fri, 1473° / 57°

73 °

Hartman, Friday, 14 August

Clear. High 73°, low 57°.

Pressure30.12 inHg

Wind7.9 mph NW

Humidity55%

Visibility—

Dew point54°

Sat, 1575° / 57°

75 °

Hartman, Saturday, 15 August

Overcast. High 75°, low 57°.

Pressure30.30 inHg

Wind7.5 mph E

Humidity51%

Visibility—

Dew point53°

Sun, 1675° / 57°

75 °

Hartman, Sunday, 16 August

Overcast. High 75°, low 57°.

Pressure30.12 inHg

Wind6.5 mph SE

Humidity63%

Visibility—

Dew point60°

Mon, 1775° / 63°

0.02

75 °

Hartman, Monday, 17 August

Light rain. High 75°, low 63°.

Pressure30.06 inHg

Wind7.5 mph W

Humidity71%

Visibility—

Dew point63°

Tue, 1881° / 62°

81 °

Hartman, Tuesday, 18 August

Overcast. High 81°, low 62°.

Pressure30.00 inHg

Wind8.9 mph SW

Humidity63%

Visibility—

Dew point64°

Wed, 1972° / 65°

0.02

72 °

Hartman, Wednesday, 19 August

Light rain. High 72°, low 65°.

Pressure29.88 inHg

Wind17.5 mph NW

Humidity72%

Visibility—

Dew point60°

Thu, 2069° / 61°

0.01

69 °

Hartman, Thursday, 20 August

Light rain. High 69°, low 61°.

Pressure30.03 inHg

Wind18 mph N

Humidity61%

Visibility—

Dew point54°

Fri, 2172° / 54°

72 °

Hartman, Friday, 21 August

Clear. High 72°, low 54°.

Pressure30.09 inHg

Wind7.2 mph N

Humidity45%

Visibility—

Dew point47°

Sat, 2267° / 54°

0.01

67 °

Hartman, Saturday, 22 August

Light rain. High 67°, low 54°.

Pressure29.94 inHg

Wind16 mph SE

Humidity68%

Visibility—

Dew point55°

Sun, 2378° / 65°

78 °

Hartman, Sunday, 23 August

Mostly clear. High 78°, low 65°.

Pressure29.88 inHg

Wind19.7 mph W

Humidity54%

Visibility—

Dew point58°

Mon, 2479° / 64°

79 °

Hartman, Monday, 24 August

Overcast. High 79°, low 64°.

Pressure30.03 inHg

Wind6.2 mph W

Humidity54%

Visibility—

Dew point59°

From day 17 onward the outlook is built from 60-year climate statistics

Tue, 2579° / 63°

0.1

79 °

Hartman, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high79°

Average low63°

Average precipitation0.1 in

Chance of precipitation27%

Record high90° (2012)

Record low51° (2017)

Wed, 2680° / 64°

0.14

80 °

Hartman, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high80°

Average low64°

Average precipitation0.14 in

Chance of precipitation30%

Record high92° (2024)

Record low53° (2025)

Thu, 2780° / 64°

0.14

80 °

Hartman, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high80°

Average low64°

Average precipitation0.14 in

Chance of precipitation40%

Record high94° (2024)

Record low50° (2025)

Fri, 2879° / 64°

0.16

79 °

Hartman, Friday, 28 August

Climate normal for this date — 60-year average.

Average high79°

Average low64°

Average precipitation0.16 in

Chance of precipitation35%

Record high90° (2021)

Record low48° (1986)

Sat, 2978° / 63°

0.12

78 °

Hartman, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high78°

Average low63°

Average precipitation0.12 in

Chance of precipitation38%

Record high91° (1984)

Record low46° (1965)

Sun, 3078° / 62°

0.07

78 °

Hartman, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high78°

Average low62°

Average precipitation0.07 in

Chance of precipitation30%

Record high89° (1970)

Record low48° (1986)

Mon, 3178° / 62°

0.09

78 °

Hartman, Monday, 31 August

Climate normal for this date — 60-year average.

Average high78°

Average low62°

Average precipitation0.09 in

Chance of precipitation23%

Record high90° (2012)

Record low47° (2009)

Tue, 0178° / 61°

0.13

78 °

Hartman, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high78°

Average low61°

Average precipitation0.13 in

Chance of precipitation33%

Record high91° (2011)

Record low48° (1967)

Wed, 0278° / 62°

0.08

78 °

Hartman, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high78°

Average low62°

Average precipitation0.08 in

Chance of precipitation28%

Record high91° (2008)

Record low49° (2017)

Thu, 0378° / 62°

0.07

78 °

Hartman, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high78°

Average low62°

Average precipitation0.07 in

Chance of precipitation27%

Record high89° (1973)

Record low46° (1974)

Fri, 0476° / 61°

0.07

76 °

Hartman, Friday, 4 September

Climate normal for this date — 60-year average.

Average high76°

Average low61°

Average precipitation0.07 in

Chance of precipitation30%

Record high89° (1999)

Record low47° (1997)

Sat, 0577° / 61°

0.07

77 °

Hartman, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high77°

Average low61°

Average precipitation0.07 in

Chance of precipitation23%

Record high89° (1999)

Record low47° (1974)

Sun, 0676° / 61°

0.07

76 °

Hartman, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high76°

Average low61°

Average precipitation0.07 in

Chance of precipitation35%

Record high90° (1990)

Record low45° (1962)

Mon, 0776° / 60°

0.1

76 °

Hartman, Monday, 7 September

Climate normal for this date — 60-year average.

Average high76°

Average low60°

Average precipitation0.1 in

Chance of precipitation38%

Record high91° (1960)

Record low48° (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 Hartman, 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 Hartman, 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.