Monthly outlook for West Sweden, WI: average high 83.6°, average low 59.4°. That is 3.9° above the climate normal for August. Precipitation is expected on 8 days (about 2.7 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 19 August (98.5°), the coolest 13 August (52.3°).
83.6°/59.4°
Average high / low
+3.9°
Above normal
8 / 5
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
85.3°
76.9°
+4.7°
19 August – 28 August
80.8°
76°
+2.7°
29 August – 7 September
at normal
74.1°
—
August records over 66 years
96.3°16 August 1988All-time high
44.8°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Siren (8 mi).
Mon, 1089° / 58°0
89 °
West Sweden, Monday, 10 August
Partly cloudy. High 89°, low 58°.
Pressure29.91 inHg
Wind6.3 mph NE
Humidity27%
Visibility6.2 mi
Dew point48°
Tue, 1191° / 66°0.17
91 °
West Sweden, Tuesday, 11 August
Rain. High 91°, low 66°.
Pressure29.80 inHg
Wind7.7 mph N
Humidity40%
Visibility6.2 mi
Dew point60°
Wed, 1284° / 55°0
84 °
West Sweden, Wednesday, 12 August
Clear. High 84°, low 55°.
Pressure29.91 inHg
Wind10.6 mph NW
Humidity26%
Visibility6.2 mi
Dew point44°
Thu, 1380° / 52°0
80 °
West Sweden, Thursday, 13 August
Overcast. High 80°, low 52°.
Pressure30.06 inHg
Wind7.6 mph N
Humidity27%
Visibility—
Dew point36°
Fri, 1484° / 53°0
84 °
West Sweden, Friday, 14 August
Partly cloudy. High 84°, low 53°.
Pressure30.15 inHg
Wind6.8 mph SE
Humidity23%
Visibility—
Dew point37°
Sat, 1578° / 57°0
78 °
West Sweden, Saturday, 15 August
Overcast. High 78°, low 57°.
Pressure30.18 inHg
Wind15.2 mph S
Humidity29%
Visibility—
Dew point41°
Sun, 1686° / 62°0
86 °
West Sweden, Sunday, 16 August
Overcast. High 86°, low 62°.
Pressure30.03 inHg
Wind14.6 mph NW
Humidity31%
Visibility—
Dew point48°
Mon, 1786° / 54°0
86 °
West Sweden, Monday, 17 August
Overcast. High 86°, low 54°.
Pressure30.09 inHg
Wind6.6 mph SE
Humidity26%
Visibility—
Dew point39°
Tue, 1890° / 60°0.14
90 °
West Sweden, Tuesday, 18 August
Light rain. High 90°, low 60°.
Pressure29.85 inHg
Wind14.2 mph S
Humidity60%
Visibility—
Dew point62°
Wed, 1998° / 69°0.75
98 °
West Sweden, Wednesday, 19 August
Rain. High 98°, low 69°.
Pressure29.77 inHg
Wind25.2 mph S
Humidity43%
Visibility—
Dew point65°
Thu, 2087° / 67°1.24
87 °
West Sweden, Thursday, 20 August
Heavy rain. High 87°, low 67°.
Pressure29.83 inHg
Wind13 mph NW
Humidity33%
Visibility—
Dew point52°
Fri, 2178° / 58°0
78 °
West Sweden, Friday, 21 August
Overcast. High 78°, low 58°.
Pressure30.00 inHg
Wind8.8 mph N
Humidity47%
Visibility—
Dew point53°
Sat, 2284° / 62°0.2
84 °
West Sweden, Saturday, 22 August
Light rain. High 84°, low 62°.
Pressure29.85 inHg
Wind13.2 mph NE
Humidity69%
Visibility—
Dew point64°
Sun, 2370° / 59°0.07
70 °
West Sweden, Sunday, 23 August
Light rain. High 70°, low 59°.
Pressure30.00 inHg
Wind13.3 mph NE
Humidity87%
Visibility—
Dew point59°
Mon, 2467° / 57°0.05
67 °
West Sweden, Monday, 24 August
Light rain. High 67°, low 57°.
Pressure30.12 inHg
Wind10 mph NE
Humidity92%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2576° / 62°0.11
76 °
West Sweden, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.11 in
Chance of precipitation38%
Record high93° (2013)
Record low48° (2025)
Wed, 2676° / 62°0.24
76 °
West Sweden, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.24 in
Chance of precipitation47%
Record high91° (1991)
Record low49° (1964)
Thu, 2776° / 61°0.16
76 °
West Sweden, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.16 in
Chance of precipitation35%
Record high90° (1991)
Record low47° (1971)
Fri, 2875° / 61°0.1
75 °
West Sweden, Friday, 28 August
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.1 in
Chance of precipitation30%
Record high91° (1984)
Record low45° (1986)
Sat, 2976° / 60°0.09
76 °
West Sweden, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.09 in
Chance of precipitation27%
Record high89° (2012)
Record low47° (1976)
Sun, 3074° / 60°0.11
74 °
West Sweden, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high74°
Average low60°
Average precipitation0.11 in
Chance of precipitation28%
Record high91° (2012)
Record low48° (2009)
Mon, 3175° / 59°0.11
75 °
West Sweden, Monday, 31 August
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.11 in
Chance of precipitation35%
Record high88° (1961)
Record low47° (1967)
Tue, 0175° / 59°0.15
75 °
West Sweden, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.15 in
Chance of precipitation32%
Record high90° (2011)
Record low43° (1974)
Wed, 0275° / 60°0.15
75 °
West Sweden, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.15 in
Chance of precipitation33%
Record high89° (1983)
Record low46° (1974)
Thu, 0374° / 60°0.16
74 °
West Sweden, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high74°
Average low60°
Average precipitation0.16 in
Chance of precipitation33%
Record high94° (2023)
Record low41° (1974)
Fri, 0474° / 59°0.14
74 °
West Sweden, Friday, 4 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.14 in
Chance of precipitation35%
Record high95° (2023)
Record low44° (2025)
Sat, 0574° / 58°0.17
74 °
West Sweden, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high74°
Average low58°
Average precipitation0.17 in
Chance of precipitation33%
Record high88° (2023)
Record low43° (2025)
Sun, 0673° / 58°0.11
73 °
West Sweden, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0.11 in
Chance of precipitation37%
Record high89° (1960)
Record low42° (2025)
Mon, 0773° / 58°0.08
73 °
West Sweden, Monday, 7 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0.08 in
Chance of precipitation35%
Record high93° (1976)
Record low40° (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 West Sweden, 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 West Sweden, 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.