Current Weather in Johnston, IA
74°F 24°C
Feels Like 72°F / 22°C
Today's Weather in Johnston,IA
Listen to this weather report - press Read
- Barometer 29.8 inHg. steady
- Humidity 76% steady
- Heat Index 78°F
- Wind from SSW. 15 mph
- Wind Gust 39.6 miles per hour
- Wind Chill 74°F
- UV Index 0
- Dew Point 66°F steady
- Visibility 6 mi.
- Sunrise 6:42 AM
- Sunset 7:47 PM
- Moonrise 10:07 PM
- Moonset 12:37 PM
- Moon Phase Last Quarter Moon 60%
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Test our newly developed Weather Chatbot. It provides up to 10 days of forecast information! You can ask questions like "Will it rain tomorrow?" or "What's the fishing conditions like for the morning", or "What is the barometric pressure tonight".Hourly Forecast - Next 8 hours
5 Day Forecast
Wed
Thu
FriOvercast
Overcast with a high of 102°F and a low of 73°F. 17% possible chance of rain predicted with an estimated 0.01in. Winds will be moderate, blowing around 19mph. Humidity levels are comfortable, sitting around 45%.
| Temperature | Humidity | Rainfall | Snow | Wind |
|---|---|---|---|---|
| Hi 102° | Lo 73° | 45% | 17% | est. 0.01in | 0% | 18.1 mph |
Scattered Showers
Scattered Showers with a high of 102°F and a low of 75°F. Probable rainfall forecasted, having a 57% chance with an estimated 0.05in. Winds will be moderate, blowing around 18mph. Humidity levels are comfortable, sitting around 50%.
| Temperature | Humidity | Rainfall | Snow | Wind |
|---|---|---|---|---|
| Hi 102° | Lo 75° | 50% | 57% | est. 0.05in | 0% | 17.4 mph |
Sunny
Sunny with a high of 103°F and a low of 79°F. 17% possible chance of rain predicted with an estimated 0.01in. Winds will be moderate, blowing around 15mph. Humidity levels are comfortable, sitting around 41%.
| Temperature | Humidity | Rainfall | Snow | Wind |
|---|---|---|---|---|
| Hi 103° | Lo 79° | 41% | 17% | est. 0.01in | 0% | 14.1 mph |
Overcast
Overcast with a high of 104°F and a low of 79°F. 17% possible chance of rain predicted with an estimated 0in. Winds will be moderate, blowing around 12mph. Humidity levels are comfortable, sitting around 38%.
| Temperature | Humidity | Rainfall | Snow | Wind |
|---|---|---|---|---|
| Hi 104° | Lo 79° | 38% | 17% | est. 0in | 0% | 11.2 mph |
Overcast
Overcast with a high of 97°F and a low of 71°F. Probable rainfall forecasted, having a 57% chance with an estimated 0.05in. Winds will be moderate, blowing around 14mph. The humidity will be on the higher side, reaching around 61%.
| Temperature | Humidity | Rainfall | Snow | Wind |
|---|---|---|---|---|
| Hi 97° | Lo 71° | 61% | 57% | est. 0.05in | 0% | 13.2 mph |
Weather Radar Map
Live Johnston, IA weather with granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Sunday, 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 74°F. The morning temperature of 73°F is lowest at 2am with the daytime high of 102°F at 3pm and a low around 83°F at 10pm is expected.
Hourly Barometric Pressure
The highest pressure today is 29.88inHg at 5am and lowest being 29.73inHg at 7pm.
Hourly Wind Speeds
The fastest wind is reported to be 18.1mph at 4pm, while the slowest is 2.7mph around 7pm; expect wind gusts peaking 39.6mph at 1am.
Current National Weather
Our attention this week turns towards potential flash floods and severe storms affecting the Western Gulf Coast and the Northeast. Heavy rains are expected from Tropical Storm EDOUARD as it heads into Southeastern Texas, bringing risks of localized flash flooding. Meanwhile, thunderstorms will be active across the Northern/Central Plains and Lower Great Lakes regions. Additionally, heat will increase across the Midwest and Ohio Valley.
Western Gulf Coast and Northeast
Tuesday and Wednesday promise to be wet as Tropical Storm EDOUARD brings heavy downpours to Galveston,TX and surrounding areas, weakening into a depression. This system is likely to cause flash flooding in urban areas and low-lying spots. In the Northeast, regions including Buffalo,NY and Boston,MA should prepare for thunderstorms and potential flooding.
Northern/Central Plains to Lower Great Lakes
On Tuesday, severe thunderstorms could develop in regions like Kansas City,MO, Omaha,NE, and Des Moines,IA. These storms bring threats of strong winds, hail, and possibly tornadoes. Keep an eye on the skies and take cover if necessary.
Southwest and Rockies
Expect moderate to heavy rain in parts of the Southwest and Rocky Mountains on Tuesday. Residents in Denver,CO and Salt Lake City,UT should be aware of possible rain. This precipitation is due to monsoonal moisture, which is slightly weakening.
Northwest
Rain will arrive on the Northwest Coast late Tuesday, spreading to the Northern Intermountain Region by afternoon. Seattle,WA and Portland,OR will see showers, continuing into Wednesday.
Central and Southern Plains Heat
Finally, a heat wave will expand from the Middle Mississippi Valley into the Ohio Valley and Mid-Atlantic from Tuesday through Thursday. Cities like Louisville,KY and Nashville,TN should prepare for rising temperatures and potential heat advisories.
This weather report is valid for ZIP code 50131, accurately covering the area of Johnston, IA.
National Outlook
Conditions Nearby
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