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Johnston, IA Weather Conditions

Updated: Fri Mar 6th 2026 6:15 PM CST

Overcast

69^°F 20^°C

Feels Like 69^°F / 20^°C

Johnston, IA weather condition is Overcast and 69°F.

Today's Weather in Johnston,IA

The current weather in Johnston IA as of 6:15 PM CST on Fri Mar 6th 2026, has a sky condition of Overcast with the visibility of 9 mile(s) and the UV index at 4. It is 69 degrees fahrenheit. The barometric pressure is 29.7 - measured by inches of mercury - and is rising since its last observation. The humidity is 73 percent that's falling since the last report, with a dew point of 64 degrees fahrenheit which is falling. Wind direction is from the South-Southwest at 15 miles per hour, gusting at 24.5 miles per hour. Sunrise was at 6:41 AM and Sunset was at 6:11 PM. The moon phase is a Waning Gibbous moon rising at 9:58 PM. Thank you for listening to the weather report from LocalConditions.com!

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Sun & Moon

Sun

Sunrise: 6:41 AM

Sunset: 6:11 PM

As of:

Moon

Moonrise: 9:58 PM

Moonset: 7:51 AM

Phase: Waning Gibbous Moon

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Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

Next 5 Days...

Scattered Rain

Scattered Rain with a high of 54°F and a low of 33°F. Probable rainfall forecasted, having a 78% chance with an estimated 0.02in. Winds will be moderate, blowing around 18mph. The humidity will be on the higher side, reaching around 79%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 54° \| Lo 33°	79%	78% \| est. 0.02in	0%	17.2 mph

Sunny

Sunny with a high of 69°F and a low of 33°F. Winds will be moderate, blowing around 18mph. The humidity will be on the higher side, reaching around 68%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 69° \| Lo 33°	68%	0%	0%	17.9 mph

Sunny

Sunny with a high of 65°F and a low of 40°F. Winds will be moderate, blowing around 18mph. The humidity will be on the higher side, reaching around 72%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 65° \| Lo 40°	72%	0%	0%	17.7 mph

Moderate Rain

Moderate Rain with a high of 53°F and a low of 40°F. Probable rainfall forecasted, having an 86% chance with an estimated 0.31in. Winds will be moderate, blowing around 17mph. The humidity will be on the higher side, reaching around 68%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 53° \| Lo 40°	68%	86% \| est. 0.31in	0%	16.1 mph

Partly Cloudy

Partly Cloudy with a high of 52°F and a low of 40°F. Winds will be moderate, blowing around 20mph. The humidity will be on the higher side, reaching around 65%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 52° \| Lo 40°	65%	0%	0%	19.5 mph

Yesterday 5-Day Wind

Weather Radar Map

Live Johnston, IA weather with minute-by-minute precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Tuesday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.

Hourly Temperature

The current temperature today is 69^°F. The morning temperature of 48°^F is lowest at 12am with the daytime high of 69°^F at 6pm and a low around 57°^F at 11pm is expected.

Hourly Barometric Pressure

The highest pressure today is 29.94^inHg at 12am and lowest being 29.66^inHg at 7pm.

Hourly Wind Speeds

The fastest wind is reported to be 16.3^mph at 5pm, while the slowest is 10.5^mph around 5am; expect wind gusts peaking 25.6^mph at 3am. View live wind conditions in Johnston

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