Monthly outlook for Theresa Station, WI: average high 77.6°, average low 62.1°. That is 0.1° above the climate normal for August. Precipitation is expected on 9 days (about 3.1 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 10 August (87.4°), the coolest 22 August (54.5°).
77.6°/62.1°
Average high / low
+0.1°
Above normal
9 / 5
Wet days / normal
3.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
77.1°
77.5°
-0.2°
19 August – 28 August
78.3°
77.5°
+0.5°
29 August – 7 September
at normal
75.5°
—
August records over 66 years
95.4°2 August 1964All-time high
44.1°29 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Theresa (1 mi).
Mon, 1087° / 71°0.01
87 °
Theresa Station, Monday, 10 August
Light rain. High 87°, low 71°.
Pressure29.91 inHg
Wind2.7 mph SW
Humidity69%
Visibility6.2 mi
Dew point68°
Tue, 1180° / 64°0.53
80 °
Theresa Station, Tuesday, 11 August
Heavy rain. High 80°, low 64°.
Pressure29.80 inHg
Wind9.3 mph S
Humidity80%
Visibility6.2 mi
Dew point67°
Wed, 1278° / 62°0
78 °
Theresa Station, Wednesday, 12 August
Overcast. High 78°, low 62°.
Pressure29.94 inHg
Wind3.3 mph NW
Humidity61%
Visibility6.2 mi
Dew point62°
Thu, 1379° / 62°0
79 °
Theresa Station, Thursday, 13 August
Overcast. High 79°, low 62°.
Pressure29.97 inHg
Wind4.8 mph S
Humidity64%
Visibility6.2 mi
Dew point63°
Fri, 1475° / 61°0.36
75 °
Theresa Station, Friday, 14 August
Rain. High 75°, low 61°.
Pressure30.06 inHg
Wind14.1 mph E
Humidity65%
Visibility—
Dew point61°
Sat, 1573° / 63°0.54
73 °
Theresa Station, Saturday, 15 August
Rain. High 73°, low 63°.
Pressure29.91 inHg
Wind14.3 mph E
Humidity96%
Visibility—
Dew point69°
Sun, 1671° / 62°0.43
71 °
Theresa Station, Sunday, 16 August
Rain. High 71°, low 62°.
Pressure30.00 inHg
Wind13.7 mph NW
Humidity76%
Visibility—
Dew point60°
Mon, 1769° / 61°0.2
69 °
Theresa Station, Monday, 17 August
Light rain. High 69°, low 61°.
Pressure30.00 inHg
Wind13.1 mph SE
Humidity82%
Visibility—
Dew point62°
Tue, 1881° / 67°0.22
81 °
Theresa Station, Tuesday, 18 August
Light rain. High 81°, low 67°.
Pressure29.83 inHg
Wind14.8 mph W
Humidity76%
Visibility—
Dew point67°
Wed, 1979° / 61°0
79 °
Theresa Station, Wednesday, 19 August
Partly cloudy. High 79°, low 61°.
Pressure30.03 inHg
Wind7.8 mph W
Humidity64%
Visibility—
Dew point63°
Thu, 2084° / 66°0.07
84 °
Theresa Station, Thursday, 20 August
Light rain. High 84°, low 66°.
Pressure29.80 inHg
Wind13.8 mph SW
Humidity70%
Visibility—
Dew point69°
Fri, 2174° / 57°0.04
74 °
Theresa Station, Friday, 21 August
Light rain. High 74°, low 57°.
Pressure29.97 inHg
Wind12.5 mph NE
Humidity73%
Visibility—
Dew point60°
Sat, 2276° / 55°0
76 °
Theresa Station, Saturday, 22 August
Clear. High 76°, low 55°.
Pressure30.03 inHg
Wind7.7 mph SW
Humidity53%
Visibility—
Dew point54°
Sun, 2379° / 60°0.13
79 °
Theresa Station, Sunday, 23 August
Light rain. High 79°, low 60°.
Pressure29.94 inHg
Wind11.5 mph W
Humidity71%
Visibility—
Dew point64°
Mon, 2479° / 61°0
79 °
Theresa Station, Monday, 24 August
Light rain. High 79°, low 61°.
Pressure30.03 inHg
Wind7 mph NW
Humidity54%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 63°0.09
78 °
Theresa Station, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.09 in
Chance of precipitation25%
Record high89° (2024)
Record low49° (2017)
Wed, 2678° / 64°0.13
78 °
Theresa Station, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.13 in
Chance of precipitation40%
Record high91° (1973)
Record low49° (2025)
Thu, 2778° / 64°0.12
78 °
Theresa Station, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.12 in
Chance of precipitation35%
Record high92° (1976)
Record low49° (2025)
Fri, 2878° / 62°0.17
78 °
Theresa Station, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.17 in
Chance of precipitation40%
Record high91° (1984)
Record low46° (1986)
Sat, 2977° / 62°0.11
77 °
Theresa Station, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.11 in
Chance of precipitation30%
Record high90° (1984)
Record low44° (1965)
Sun, 3076° / 62°0.07
76 °
Theresa Station, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.07 in
Chance of precipitation32%
Record high88° (1969)
Record low49° (1974)
Mon, 3176° / 60°0.04
76 °
Theresa Station, Monday, 31 August
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.04 in
Chance of precipitation17%
Record high89° (2000)
Record low48° (2009)
Tue, 0176° / 61°0.07
76 °
Theresa Station, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.07 in
Chance of precipitation30%
Record high88° (2011)
Record low46° (1967)
Wed, 0276° / 61°0.07
76 °
Theresa Station, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.07 in
Chance of precipitation22%
Record high91° (2008)
Record low46° (1974)
Thu, 0375° / 61°0.09
75 °
Theresa Station, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.09 in
Chance of precipitation23%
Record high91° (2023)
Record low45° (1974)
Fri, 0475° / 60°0.07
75 °
Theresa Station, Friday, 4 September
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.07 in
Chance of precipitation28%
Record high90° (2023)
Record low43° (2025)
Sat, 0574° / 59°0.08
74 °
Theresa Station, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.08 in
Chance of precipitation22%
Record high88° (2023)
Record low46° (1974)
Sun, 0675° / 60°0.08
75 °
Theresa Station, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.08 in
Chance of precipitation30%
Record high88° (1960)
Record low45° (1988)
Mon, 0774° / 59°0.11
74 °
Theresa Station, Monday, 7 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.11 in
Chance of precipitation35%
Record high89° (1960)
Record low44° (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 Theresa Station, 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 Theresa Station, 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.