10-day forecast for Johnstown, WI: 55° to 85°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
82°
Best day: Tuesday, August 18
83° · 0.68 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1085° / 69°0.11
Morning72°feels 74°
Afternoon85°feels 91°
Evening74°feels 75°
Overnight73°feels 74°
85 °
Johnstown, Monday, 10 August
Light rain. High 85°, low 69°.
Pressure29.85 inHg
Wind10.5 mph NE
Humidity80%
Visibility6.2 mi
Dew point71°
Tue, 1183° / 66°0.68
Morning69°feels 70°
Afternoon82°feels 87°
Evening74°feels 75°
Overnight67°feels 68°
83 °
Johnstown, Tuesday, 11 August
Heavy rain. High 83°, low 66°.
Pressure29.74 inHg
Wind5.1 mph NE
Humidity81%
Visibility6.2 mi
Dew point72°
Wed, 1279° / 64°0
Morning70°feels 70°
Afternoon78°feels 79°
Evening69°feels 69°
Overnight65°feels 65°
79 °
Johnstown, Wednesday, 12 August
Overcast. High 79°, low 64°.
Pressure29.88 inHg
Wind9 mph NW
Humidity74%
Visibility6.2 mi
Dew point69°
Thu, 1370° / 58°0
Morning62°feels 61°
Afternoon69°feels 69°
Evening65°feels 65°
Overnight59°feels 58°
70 °
Johnstown, Thursday, 13 August
Overcast. High 70°, low 58°.
Pressure30.03 inHg
Wind9.5 mph E
Humidity67%
Visibility—
Dew point57°
Fri, 1476° / 55°0
Morning62°feels 62°
Afternoon74°feels 74°
Evening70°feels 70°
Overnight62°feels 62°
76 °
Johnstown, Friday, 14 August
Clear. High 76°, low 55°.
Pressure30.12 inHg
Wind7.1 mph SE
Humidity60%
Visibility—
Dew point58°
Sat, 1574° / 58°0
Morning63°feels 62°
Afternoon72°feels 72°
Evening63°feels 63°
Overnight58°feels 58°
74 °
Johnstown, Saturday, 15 August
Overcast. High 74°, low 58°.
Pressure30.27 inHg
Wind10.2 mph S
Humidity61%
Visibility—
Dew point57°
Sun, 1674° / 56°0
Morning64°feels 63°
Afternoon72°feels 72°
Evening69°feels 69°
Overnight64°feels 64°
74 °
Johnstown, Sunday, 16 August
Overcast. High 74°, low 56°.
Pressure30.15 inHg
Wind5.1 mph S
Humidity66%
Visibility—
Dew point59°
Mon, 1779° / 61°0
Morning65°feels 65°
Afternoon76°feels 77°
Evening74°feels 75°
Overnight67°feels 68°
79 °
Johnstown, Monday, 17 August
Mostly clear. High 79°, low 61°.
Pressure30.06 inHg
Wind6.2 mph SW
Humidity66%
Visibility—
Dew point62°
Tue, 1882° / 65°0
Morning70°feels 71°
Afternoon80°feels 83°
Evening76°feels 78°
Overnight69°feels 71°
82 °
Johnstown, Tuesday, 18 August
Light rain. High 82°, low 65°.
Pressure29.94 inHg
Wind14.6 mph SW
Humidity65%
Visibility—
Dew point66°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Johnstown, WI around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.