10-day forecast for Johnstown, CA: 56° to 82°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
82°
Best day: Sunday, October 25
69° · 0.41 in
Worst day: Sunday, November 1
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 2682° / 59°0
Morning63°feels 61°
Afternoon82°feels 81°
Evening67°feels 67°
Overnight61°feels 60°
82 °
Johnstown, Monday, 26 October
Clear. High 82°, low 59°.
Pressure30.06 inHg
Wind6.2 mph W
Humidity35%
Visibility6.2 mi
Dew point49°
Tue, 2780° / 60°0
Morning63°feels 62°
Afternoon80°feels 80°
Evening66°feels 66°
Overnight62°feels 61°
80 °
Johnstown, Tuesday, 27 October
Clear. High 80°, low 60°.
Pressure30.00 inHg
Wind2.5 mph W
Humidity39%
Visibility6.2 mi
Dew point48°
Wed, 2879° / 56°0
Morning62°feels 61°
Afternoon79°feels 79°
Evening65°feels 65°
Overnight58°feels 58°
79 °
Johnstown, Wednesday, 28 October
Clear. High 79°, low 56°.
Pressure29.94 inHg
Wind2.4 mph W
Humidity51%
Visibility6.2 mi
Dew point52°
Thu, 2976° / 59°0
Morning62°feels 62°
Afternoon71°feels 70°
Evening71°feels 71°
Overnight61°feels 61°
76 °
Johnstown, Thursday, 29 October
Overcast. High 76°, low 59°.
Pressure29.94 inHg
Wind6.5 mph W
Humidity62%
Visibility—
Dew point55°
Fri, 3076° / 64°0
Morning66°feels 66°
Afternoon72°feels 71°
Evening70°feels 70°
Overnight65°feels 65°
76 °
Johnstown, Friday, 30 October
Light rain. High 76°, low 64°.
Pressure29.94 inHg
Wind8.2 mph W
Humidity61%
Visibility—
Dew point56°
Sat, 3168° / 61°0.14
Morning63°feels 62°
Afternoon68°feels 66°
Evening64°feels 64°
Overnight66°feels 65°
68 °
Johnstown, Saturday, 31 October
Light rain. High 68°, low 61°.
Pressure29.97 inHg
Wind13.1 mph SE
Humidity48%
Visibility—
Dew point47°
Sun, 0169° / 61°0.41
Morning65°feels 65°
Afternoon65°feels 64°
Evening64°feels 64°
Overnight62°feels 62°
69 °
Johnstown, Sunday, 1 November
Rain. High 69°, low 61°.
Pressure30.00 inHg
Wind24.5 mph S
Humidity75%
Visibility—
Dew point57°
Mon, 0270° / 59°0.01
Morning61°feels 60°
Afternoon66°feels 65°
Evening67°feels 66°
Overnight60°feels 59°
70 °
Johnstown, Monday, 2 November
Light rain. High 70°, low 59°.
Pressure30.18 inHg
Wind10.3 mph NW
Humidity58%
Visibility—
Dew point49°
Tue, 0371° / 57°0
Morning60°feels 59°
Afternoon67°feels 65°
Evening68°feels 67°
Overnight61°feels 60°
71 °
Johnstown, Tuesday, 3 November
Clear. High 71°, low 57°.
Pressure30.06 inHg
Wind8.5 mph W
Humidity58%
Visibility—
Dew point50°
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.