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As of 10:30 CDT

Weather in Johnstown, IL

48°Current weather

Johnstown, Saturday, 17 October, 10:30

Partly cloudy. Feels like 43°. High 54°, low 40°.

Pressure30.56 inHg
Wind10.4 mph NE
Humidity67%
Visibility6.2 mi
Dew point38°

10-day forecast for Johnstown, IL: 39° to 77°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.

75°
Best day: Friday, October 23
54°
Worst day: Saturday, October 17

Tap any day below to see morning, afternoon, evening and overnight.

Sun, 1861° / 39°0Clear
MorningClear41°feels 37°
AfternoonClear61°feels 58°
EveningClear50°feels 48°
OvernightClear40°feels 37°
61 °Clear

Johnstown, Sunday, 18 October

Clear. High 61°, low 39°.

Pressure30.50 inHg
Wind8.5 mph S
Humidity44%
Visibility6.2 mi
Dew point37°
Mon, 1967° / 42°0Clear
MorningClear44°feels 44°
AfternoonClear67°feels 65°
EveningClear55°feels 53°
OvernightClear45°feels 44°
67 °Clear

Johnstown, Monday, 19 October

Clear. High 67°, low 42°.

Pressure30.42 inHg
Wind1.1 mph SE
Humidity39%
Visibility6.2 mi
Dew point39°
Tue, 2070° / 44°0Clear
MorningClear46°feels 45°
AfternoonMostly clear70°feels 68°
EveningClear59°feels 58°
OvernightClear49°feels 49°
70 °Clear

Johnstown, Tuesday, 20 October

Clear. High 70°, low 44°.

Pressure30.36 inHg
Wind3.7 mph E
Humidity41%
Visibility6.2 mi
Dew point43°
Wed, 2171° / 46°0Partly cloudy
MorningClear51°feels 50°
AfternoonPartly cloudy69°feels 67°
EveningPartly cloudy61°feels 59°
OvernightClear51°feels 49°
71 °Partly cloudy

Johnstown, Wednesday, 21 October

Partly cloudy. High 71°, low 46°.

Pressure30.27 inHg
Wind3.4 mph E
Humidity36%
Visibility—
Dew point39°
Thu, 2272° / 48°0Clear
MorningClear55°feels 55°
AfternoonClear70°feels 69°
EveningClear61°feels 60°
OvernightClear56°feels 55°
72 °Clear

Johnstown, Thursday, 22 October

Clear. High 72°, low 48°.

Pressure30.24 inHg
Wind4.9 mph NE
Humidity38%
Visibility—
Dew point42°
Fri, 2375° / 53°0Clear
MorningClear59°feels 57°
AfternoonClear72°feels 71°
EveningClear63°feels 61°
OvernightClear59°feels 56°
75 °Clear

Johnstown, Friday, 23 October

Clear. High 75°, low 53°.

Pressure30.18 inHg
Wind8.1 mph SE
Humidity31%
Visibility—
Dew point38°
Sat, 2472° / 53°0Overcast
MorningOvercast58°feels 56°
AfternoonOvercast70°feels 69°
EveningOvercast64°feels 62°
OvernightOvercast60°feels 58°
72 °Overcast

Johnstown, Saturday, 24 October

Overcast. High 72°, low 53°.

Pressure30.18 inHg
Wind12.1 mph S
Humidity29%
Visibility—
Dew point35°
Sun, 2577° / 60°0.05Light rain
MorningLight rain65°feels 63°
AfternoonLight rain75°feels 74°
EveningLight rain63°feels 63°
OvernightLight rain61°feels 60°
77 °Light rain

Johnstown, Sunday, 25 October

Light rain. High 77°, low 60°.

Pressure30.09 inHg
Wind13.4 mph SW
Humidity33%
Visibility—
Dew point44°
Mon, 2674° / 54°0Clear
MorningClear59°feels 58°
AfternoonClear71°feels 70°
EveningClear65°feels 64°
OvernightClear60°feels 59°
74 °Clear

Johnstown, Monday, 26 October

Clear. High 74°, low 54°.

Pressure30.18 inHg
Wind6.7 mph SE
Humidity43%
Visibility—
Dew point46°

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.