10-day forecast for Johnstown, IL: 43° to 75°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
68°
Best day: Thursday, November 5
65° · 0.13 in
Worst day: Wednesday, November 4
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 0264° / 55°0.01
Morning58°feels 57°
Afternoon64°feels 64°
Evening63°feels 63°
Overnight57°feels 56°
64 °
Johnstown, Monday, 2 November
Light rain. High 64°, low 55°.
Pressure30.09 inHg
Wind13 mph SE
Humidity85%
Visibility6.2 mi
Dew point58°
Tue, 0375° / 62°0.09
Morning67°feels 67°
Afternoon75°feels 75°
Evening69°feels 69°
Overnight64°feels 64°
75 °
Johnstown, Tuesday, 3 November
Rain. High 75°, low 62°.
Pressure29.88 inHg
Wind20.6 mph S
Humidity64%
Visibility6.2 mi
Dew point61°
Wed, 0465° / 54°0.13
Morning61°feels 60°
Afternoon65°feels 64°
Evening57°feels 56°
Overnight65°feels 65°
65 °
Johnstown, Wednesday, 4 November
Rain. High 65°, low 54°.
Pressure29.80 inHg
Wind14.1 mph SW
Humidity53%
Visibility6.2 mi
Dew point48°
Thu, 0568° / 49°0
Morning54°feels 53°
Afternoon68°feels 66°
Evening59°feels 57°
Overnight52°feels 50°
68 °
Johnstown, Thursday, 5 November
Overcast. High 68°, low 49°.
Pressure29.85 inHg
Wind12.1 mph SW
Humidity34%
Visibility6.2 mi
Dew point38°
Fri, 0656° / 46°0.02
Morning49°feels 46°
Afternoon55°feels 53°
Evening54°feels 53°
Overnight51°feels 50°
56 °
Johnstown, Friday, 6 November
Light rain. High 56°, low 46°.
Pressure29.91 inHg
Wind9.4 mph NW
Humidity67%
Visibility—
Dew point43°
Sat, 0759° / 48°0
Morning51°feels 48°
Afternoon57°feels 55°
Evening53°feels 51°
Overnight50°feels 47°
59 °
Johnstown, Saturday, 7 November
Overcast. High 59°, low 48°.
Pressure30.00 inHg
Wind8.9 mph N
Humidity56%
Visibility—
Dew point41°
Sun, 0860° / 43°0
Morning47°feels 45°
Afternoon57°feels 55°
Evening52°feels 50°
Overnight49°feels 48°
60 °
Johnstown, Sunday, 8 November
Overcast. High 60°, low 43°.
Pressure30.15 inHg
Wind5.7 mph E
Humidity45%
Visibility—
Dew point35°
Mon, 0962° / 45°0
Morning49°feels 49°
Afternoon60°feels 57°
Evening53°feels 51°
Overnight50°feels 48°
62 °
Johnstown, Monday, 9 November
Clear. High 62°, low 45°.
Pressure30.03 inHg
Wind5.6 mph NW
Humidity46%
Visibility—
Dew point38°
Tue, 1064° / 46°0
Morning51°feels 50°
Afternoon62°feels 60°
Evening54°feels 52°
Overnight50°feels 49°
64 °
Johnstown, Tuesday, 10 November
Clear. High 64°, low 46°.
Pressure30.03 inHg
Wind9.2 mph W
Humidity41%
Visibility—
Dew point37°
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, IL 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.