As of 15:46 CDT

Weather in Martinsville, WI

77°Current weather

Martinsville, Sunday, 9 August, 15:46

Overcast. Feels like 78°. High 78°, low 61°.

Pressure29.88 inHg
Wind5 mph E
Humidity76%
Visibility6.2 mi
Dew point69°

Monthly outlook for Martinsville, WI: average high 77.5°, average low 62.9°. That is 0.8° below the climate normal for August. Precipitation is expected on 9 days (about 3.5 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 20 August (84°), the coolest 22 August (54.2°).

77.5°/62.9°
Average high / low
−0.8°
Below normal
9 / 5
Wet days / normal
3.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August76.8°78.9°-1.2°
19 August – 28 August78.6°78.9°-0.2°
29 August – 7 Septemberat normal76.9°

August records over 66 years

97.5°23 August 2023All-time high
44.8°29 August 1965All-time low

Climate normals and records are computed from the nearest reference point — Sauk City (10 mi).

Mon, 1083° / 70°0.01Light rain
83 °Light rain

Martinsville, Monday, 10 August

Light rain. High 83°, low 70°.

Pressure29.97 inHg
Wind7.9 mph SW
Humidity82%
Visibility6.2 mi
Dew point68°
Tue, 1181° / 66°0.6Heavy rain
81 °Heavy rain

Martinsville, Tuesday, 11 August

Heavy rain. High 81°, low 66°.

Pressure29.80 inHg
Wind5.2 mph SE
Humidity80%
Visibility6.2 mi
Dew point67°
Wed, 1277° / 64°0Overcast
77 °Overcast

Martinsville, Wednesday, 12 August

Overcast. High 77°, low 64°.

Pressure29.91 inHg
Wind3.6 mph NE
Humidity72%
Visibility6.2 mi
Dew point65°
Thu, 1378° / 63°0Overcast
78 °Overcast

Martinsville, Thursday, 13 August

Overcast. High 78°, low 63°.

Pressure29.97 inHg
Wind6.5 mph SE
Humidity69%
Visibility6.2 mi
Dew point66°
Fri, 1470° / 63°0.14Light rain
70 °Light rain

Martinsville, Friday, 14 August

Light rain. High 70°, low 63°.

Pressure30.06 inHg
Wind12 mph E
Humidity95%
Visibility
Dew point67°
Sat, 1581° / 64°1.18Heavy rain
81 °Heavy rain

Martinsville, Saturday, 15 August

Heavy rain. High 81°, low 64°.

Pressure29.91 inHg
Wind11.8 mph SE
Humidity93%
Visibility
Dew point71°
Sun, 1672° / 64°0.14Rain
72 °Rain

Martinsville, Sunday, 16 August

Rain. High 72°, low 64°.

Pressure30.00 inHg
Wind13.3 mph NW
Humidity82%
Visibility
Dew point63°
Mon, 1767° / 61°0.61Rain
67 °Rain

Martinsville, Monday, 17 August

Rain. High 67°, low 61°.

Pressure30.03 inHg
Wind12.2 mph SE
Humidity98%
Visibility
Dew point62°
Tue, 1881° / 66°0.22Rain
81 °Rain

Martinsville, Tuesday, 18 August

Rain. High 81°, low 66°.

Pressure29.83 inHg
Wind12.7 mph W
Humidity71%
Visibility
Dew point68°
Wed, 1980° / 62°0Overcast
80 °Overcast

Martinsville, Wednesday, 19 August

Overcast. High 80°, low 62°.

Pressure30.03 inHg
Wind5.6 mph W
Humidity67%
Visibility
Dew point65°
Thu, 2084° / 66°0.02Light rain
84 °Light rain

Martinsville, Thursday, 20 August

Light rain. High 84°, low 66°.

Pressure29.80 inHg
Wind9.8 mph SW
Humidity70%
Visibility
Dew point69°
Fri, 2173° / 60°0.01Light rain
73 °Light rain

Martinsville, Friday, 21 August

Light rain. High 73°, low 60°.

Pressure29.97 inHg
Wind12.3 mph NE
Humidity72%
Visibility
Dew point62°
Sat, 2276° / 54°0Clear
76 °Clear

Martinsville, Saturday, 22 August

Clear. High 76°, low 54°.

Pressure30.03 inHg
Wind6.5 mph SW
Humidity57%
Visibility
Dew point56°
Sun, 2380° / 61°0.05Light rain
80 °Light rain

Martinsville, Sunday, 23 August

Light rain. High 80°, low 61°.

Pressure29.97 inHg
Wind9.8 mph W
Humidity72%
Visibility
Dew point64°
Mon, 2478° / 62°0.05Light rain
78 °Light rain

Martinsville, Monday, 24 August

Light rain. High 78°, low 62°.

Pressure30.03 inHg
Wind8.7 mph NW
Humidity69%
Visibility
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 64°0.09Climate normal
80 °Climate normal

Martinsville, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.09 in
Chance of precipitation27%
Record high90° (2020)
Record low51° (2025)
Wed, 2679° / 64°0.14Climate normal
79 °Climate normal

Martinsville, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high79°
Average low64°
Average precipitation0.14 in
Chance of precipitation37%
Record high93° (2024)
Record low48° (2025)
Thu, 2779° / 64°0.15Climate normal
79 °Climate normal

Martinsville, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high79°
Average low64°
Average precipitation0.15 in
Chance of precipitation35%
Record high92° (2024)
Record low48° (1968)
Fri, 2879° / 63°0.15Climate normal
79 °Climate normal

Martinsville, Friday, 28 August

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.15 in
Chance of precipitation38%
Record high93° (1984)
Record low45° (1986)
Sat, 2978° / 62°0.11Climate normal
78 °Climate normal

Martinsville, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.11 in
Chance of precipitation30%
Record high92° (1984)
Record low45° (1965)
Sun, 3078° / 62°0.07Climate normal
78 °Climate normal

Martinsville, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.07 in
Chance of precipitation33%
Record high91° (2012)
Record low49° (1974)
Mon, 3178° / 61°0.04Climate normal
78 °Climate normal

Martinsville, Monday, 31 August

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.04 in
Chance of precipitation17%
Record high91° (2000)
Record low48° (1967)
Tue, 0178° / 61°0.1Climate normal
78 °Climate normal

Martinsville, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.1 in
Chance of precipitation28%
Record high92° (2011)
Record low48° (1967)
Wed, 0278° / 61°0.09Climate normal
78 °Climate normal

Martinsville, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.09 in
Chance of precipitation28%
Record high91° (2008)
Record low47° (1974)
Thu, 0377° / 62°0.11Climate normal
77 °Climate normal

Martinsville, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high77°
Average low62°
Average precipitation0.11 in
Chance of precipitation32%
Record high94° (2023)
Record low45° (1974)
Fri, 0476° / 60°0.09Climate normal
76 °Climate normal

Martinsville, Friday, 4 September

Climate normal for this date — 60-year average.

Average high76°
Average low60°
Average precipitation0.09 in
Chance of precipitation32%
Record high93° (2023)
Record low44° (2025)
Sat, 0576° / 60°0.07Climate normal
76 °Climate normal

Martinsville, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high76°
Average low60°
Average precipitation0.07 in
Chance of precipitation27%
Record high90° (2023)
Record low46° (1974)
Sun, 0676° / 60°0.07Climate normal
76 °Climate normal

Martinsville, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high76°
Average low60°
Average precipitation0.07 in
Chance of precipitation23%
Record high90° (1990)
Record low45° (1962)
Mon, 0776° / 60°0.1Climate normal
76 °Climate normal

Martinsville, Monday, 7 September

Climate normal for this date — 60-year average.

Average high76°
Average low60°
Average precipitation0.1 in
Chance of precipitation28%
Record high90° (1960)
Record low42° (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 Martinsville, WI 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 Martinsville, WI 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.