Johnston, IA Weather

Polk County1:32 PM CDT41.67°N, 93.70°WElevation 830 ft

Current conditions

Sunny
73°
Sunny
Feels like 73°
High 76°·Low 54°
WindSSE 6 mph
Humidity53%
Dew point55°
Cloud cover6%
UV index4 Moderate
Sunrise7:35 AM
Sunset6:24 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day
  • Thursday

    Sunny. High near 76, with temperatures falling to around 73 in the afternoon. Southeast wind 0 to 6 mph.

  • Thursday Night

    Mostly clear, with a low around 54. South southeast wind around 5 mph.

  • Friday

    Mostly sunny, with a high near 75.

National Weather Service forecast updated 1 day ago.

  1. Now Sunny 73°
  2. 2 PM Sunny 74°
  3. 3 PM Sunny 75°
  4. 4 PM Sunny 76°
  5. 5 PM Sunny 73°
  6. 6 PM Mostly Clear 70°
  7. 7 PM Mostly Clear 68°
  8. 8 PM Mostly Clear 65°
  9. 9 PM Mostly Clear 62°
  10. 10 PM Mostly Clear 60°
  11. 11 PM Mostly Clear 59°
  12. Fri12 AM Mostly Clear 57°
  13. 1 AM Mostly Clear 56°
  14. 2 AM Mostly Clear 56°
  15. 3 AM Mostly Clear 55°
  16. 4 AM Mostly Clear 54°
  17. 5 AM Mostly Clear 54°
  18. 6 AM Sunny 54°
  19. 7 AM Mostly Sunny 54°
  20. 8 AM Sunny 57°
  21. 9 AM Sunny 60°
  22. 10 AM Sunny 62°
  23. 11 AM Sunny 66°
  24. 12 PM Mostly Sunny 69°

10-day forecast

Details
  1. TonightOct 20 Partly Cloudy Partly Cloudy49°
  2. WedOct 21 Mostly Sunny Mostly Sunny50°75°
  3. TodayOct 22 Sunny Sunny54°76°
  4. FriOct 23 Mostly Sunny Mostly Sunny58°75°
  5. SatOct 24 Partly Sunny Partly Sunny56°76°
  6. SunOct 25 Slight Chance Rain Showers Slight Chance Rain Showers29%49°68°
  7. MonOct 26 Chance Rain Showers Chance Rain Showers29%45°60°
  8. TueOct 27 Mostly Sunny Mostly Sunny14%59°
  9. WedOct 28 Showers Showers0.35 in50°68°
  10. ThuOct 29 Partly cloudy Partly cloudy36°50°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news near Johnston

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Air quality

61
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Forecast

  • ThuModerate
  • FriModerate
  • SatModerate

Des Moines, IA reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:35 AM
Sunset 6:24 PM
Daylight 10 h 48 min (−2 min 38 s tomorrow)
Waxing Gibbous · 87% lit
Moonrise 4:30 PM Moonset 3:39 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low60° / 40°
Record high84° (1940)
Record low21° (1976)
Wettest2.23 in (2009)
Month to date1.20 in (normal 1.97 in)

Des Moines Intl Ap, records since 1939. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.