10-day forecast for Johnstown, CA: 57° to 82°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
82°
Best day: Monday, October 26
66° · 0.5 in
Worst day: Sunday, November 1
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 2779° / 57°0
Morning61°feels 60°
Afternoon79°feels 79°
Evening63°feels 64°
Overnight59°feels 58°
79 °
Johnstown, Tuesday, 27 October
Clear. High 79°, low 57°.
Pressure30.00 inHg
Wind3.8 mph W
Humidity32%
Visibility6.2 mi
Dew point45°
Wed, 2879° / 60°0
Morning63°feels 62°
Afternoon79°feels 78°
Evening67°feels 68°
Overnight62°feels 62°
79 °
Johnstown, Wednesday, 28 October
Overcast. High 79°, low 60°.
Pressure29.97 inHg
Wind2.7 mph SW
Humidity49%
Visibility6.2 mi
Dew point53°
Thu, 2978° / 62°0
Morning62°feels 62°
Afternoon78°feels 77°
Evening69°feels 69°
Overnight65°feels 65°
78 °
Johnstown, Thursday, 29 October
Light rain. High 78°, low 62°.
Pressure29.91 inHg
Wind3 mph SW
Humidity51%
Visibility6.2 mi
Dew point55°
Fri, 3071° / 64°0.06
Morning65°feels 65°
Afternoon67°feels 67°
Evening68°feels 68°
Overnight65°feels 66°
71 °
Johnstown, Friday, 30 October
Light rain. High 71°, low 64°.
Pressure29.94 inHg
Wind5.4 mph SW
Humidity78%
Visibility—
Dew point60°
Sat, 3176° / 62°0.04
Morning66°feels 66°
Afternoon71°feels 71°
Evening67°feels 67°
Overnight64°feels 64°
76 °
Johnstown, Saturday, 31 October
Light rain. High 76°, low 62°.
Pressure29.91 inHg
Wind9.8 mph SW
Humidity52%
Visibility—
Dew point52°
Sun, 0166° / 60°0.5
Morning61°feels 61°
Afternoon63°feels 62°
Evening66°feels 66°
Overnight65°feels 65°
66 °
Johnstown, Sunday, 1 November
Rain. High 66°, low 60°.
Pressure29.91 inHg
Wind8.9 mph E
Humidity80%
Visibility—
Dew point55°
Mon, 0278° / 66°0.03
Morning69°feels 69°
Afternoon75°feels 75°
Evening74°feels 74°
Overnight69°feels 69°
78 °
Johnstown, Monday, 2 November
Light rain. High 78°, low 66°.
Pressure29.97 inHg
Wind9.5 mph E
Humidity55%
Visibility—
Dew point57°
Tue, 0369° / 64°0.23
Morning66°feels 66°
Afternoon66°feels 67°
Evening65°feels 65°
Overnight64°feels 65°
69 °
Johnstown, Tuesday, 3 November
Light rain. High 69°, low 64°.
Pressure30.06 inHg
Wind7.2 mph W
Humidity89%
Visibility—
Dew point63°
Wed, 0472° / 60°0.01
Morning62°feels 62°
Afternoon67°feels 67°
Evening68°feels 68°
Overnight62°feels 61°
72 °
Johnstown, Wednesday, 4 November
Light rain. High 72°, low 60°.
Pressure30.06 inHg
Wind11.1 mph NW
Humidity64%
Visibility—
Dew point53°
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, CA 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.