10-day forecast for Johnston, OH: 53° to 90°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
90°
Best day: Sunday, August 9
88° · 2.07 in
Worst day: Monday, August 10
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0990° / 63°0.01
Morning65°feels 66°
Afternoon84°feels 83°
Evening80°feels 80°
Overnight71°feels 72°
90 °
Johnston, Sunday, 9 August
Light rain. High 90°, low 63°.
Pressure30.06 inHg
Wind4.9 mph W
Humidity45%
Visibility6.2 mi
Dew point57°
Mon, 1088° / 64°2.07
Morning69°feels 71°
Afternoon80°feels 85°
Evening75°feels 76°
Overnight71°feels 73°
88 °
Johnston, Monday, 10 August
Heavy rain. High 88°, low 64°.
Pressure30.03 inHg
Wind10.8 mph SW
Humidity94%
Visibility6.2 mi
Dew point70°
Tue, 1182° / 63°1.22
Morning66°feels 66°
Afternoon79°feels 79°
Evening64°feels 65°
Overnight63°feels 63°
82 °
Johnston, Tuesday, 11 August
Heavy rain. High 82°, low 63°.
Pressure29.97 inHg
Wind10.2 mph SW
Humidity73%
Visibility6.2 mi
Dew point66°
Wed, 1281° / 65°0.06
Morning67°feels 69°
Afternoon75°feels 76°
Evening73°feels 75°
Overnight66°feels 67°
81 °
Johnston, Wednesday, 12 August
Light rain. High 81°, low 65°.
Pressure29.83 inHg
Wind7.2 mph SW
Humidity91%
Visibility6.2 mi
Dew point70°
Thu, 1371° / 58°0
Morning64°feels 64°
Afternoon69°feels 69°
Evening61°feels 60°
Overnight59°feels 58°
71 °
Johnston, Thursday, 13 August
Overcast. High 71°, low 58°.
Pressure30.00 inHg
Wind10.9 mph NW
Humidity53%
Visibility—
Dew point52°
Fri, 1474° / 53°0
Morning62°feels 61°
Afternoon72°feels 72°
Evening63°feels 63°
Overnight58°feels 57°
74 °
Johnston, Friday, 14 August
Clear. High 74°, low 53°.
Pressure30.09 inHg
Wind7 mph NW
Humidity46%
Visibility—
Dew point50°
Sat, 1576° / 55°0
Morning64°feels 63°
Afternoon74°feels 74°
Evening64°feels 64°
Overnight58°feels 57°
76 °
Johnston, Saturday, 15 August
Overcast. High 76°, low 55°.
Pressure30.24 inHg
Wind6.8 mph NW
Humidity49%
Visibility—
Dew point53°
Sun, 1678° / 53°0
Morning63°feels 62°
Afternoon76°feels 76°
Evening66°feels 66°
Overnight61°feels 60°
78 °
Johnston, Sunday, 16 August
Mostly clear. High 78°, low 53°.
Pressure30.15 inHg
Wind5 mph N
Humidity45%
Visibility—
Dew point53°
Mon, 1771° / 60°0.02
Morning64°feels 64°
Afternoon67°feels 67°
Evening63°feels 63°
Overnight60°feels 60°
71 °
Johnston, Monday, 17 August
Light rain. High 71°, low 60°.
Pressure30.06 inHg
Wind3.2 mph E
Humidity80%
Visibility—
Dew point60°
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 Johnston, OH 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.