Newton, IA Weather

Jasper County5:13 AM CDT41.70°N, 93.05°WElevation 951 ft

Current conditions

Clear
57°
Clear
Feels like 57°
High 77°·Low 56° tonight
WindSE 9 mph
Humidity74%
Dew point49°
Pressure30.24 inHg
Visibility10.0 mi
Cloud cover54%
UV index0 Low
Sunrise7:35 AM
Sunset6:19 PM

Observed at Grinnell Municipal Airfield · 38 min ago

Forecast

10-day
  • Friday Night

    Partly cloudy, with a low around 56. South southeast wind around 10 mph, with gusts as high as 18 mph.

  • Saturday

    Mostly sunny, with a high near 77. South wind 8 to 12 mph.

  • Saturday Night

    Mostly cloudy, with a low around 54.

National Weather Service forecast updated 1 day ago.

  1. Now Mostly Cloudy 56°
  2. 6 AM Partly Sunny 56°
  3. 7 AM Partly Sunny 56°
  4. 8 AM Partly Sunny 58°
  5. 9 AM Mostly Sunny 60°
  6. 10 AM Mostly Sunny 63°
  7. 11 AM Mostly Sunny 67°
  8. 12 PM Mostly Sunny 70°
  9. 1 PM Mostly Sunny 73°
  10. 2 PM Mostly Sunny 75°
  11. 3 PM Mostly Sunny 76°
  12. 4 PM Mostly Sunny 76°
  13. 5 PM Mostly Sunny 74°
  14. 6 PM Mostly Cloudy 72°
  15. 7 PM Mostly Cloudy 69°
  16. 8 PM Mostly Cloudy 66°
  17. 9 PM Mostly Cloudy 64°
  18. 10 PM Partly Cloudy 62°
  19. 11 PM Mostly Cloudy 60°
  20. Sun12 AM Mostly Cloudy 59°
  21. 1 AM Mostly Cloudy 58°
  22. 2 AM Mostly Cloudy 57°
  23. 3 AM Mostly Cloudy 56°
  24. 4 AM Mostly Cloudy 56°

10-day forecast

Details
  1. ThuOct 22 Sunny Sunny52°78°
  2. FriOct 23 Sunny Sunny56°76°
  3. TodayOct 24 Mostly Sunny Mostly Sunny54°77°
  4. SunOct 25 Partly Sunny Partly Sunny52°73°
  5. MonOct 26 Mostly Cloudy Mostly Cloudy49°68°
  6. TueOct 27 Slight Chance Rain Showers Slight Chance Rain Showers17%49°64°
  7. WedOct 28 Chance Rain Showers Chance Rain Showers25%46°65°
  8. ThuOct 29 Partly cloudy Partly cloudy34°49°
  9. FriOct 30 Sunny Sunny30°52°
  10. SatOct 31 Partly cloudy Partly cloudy42°62°

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

Radar

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Weather news near Newton

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Air quality

Forecast

  • SatModerate (72)
  • SunModerate (70)

South-central Iowa, IA reporting area. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:35 AM
Sunset 6:19 PM
Daylight 10 h 43 min (−2 min 36 s tomorrow)
Waxing Gibbous · 96% lit
Moonrise 5:11 PM Moonset 5:51 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low58° / 35°
Month to date2.65 in (normal 2.52 in)

Grinnell 3 Sw, records since 1893. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in DMX, issued 2 hrs ago

Key Messages

- Warm and dry conditions continue Saturday and Sunday for most of Iowa with highs in the mid to upper 70s.

- Spotty showers possible in northern Iowa on Sunday, along with cooler temperatures in the mid 50s to low 60s.

- Off and on spotty light rain chances through the upcoming week with temperatures in the 60s to low 70s.

Short Term

Issued at 214 AM CDT Sat Oct 24 2026

Scattered clouds cover the area early this morning with light wind from the south-southeast. A surface low sits across North Dakota and Manitoba with trailing trough axis across the plains and attached to the developing southern stream cutoff low. As northern and southern streams separate today the approaching cold front stalls out. This keeps Iowa dry and warm today with precipitation across South Dakota and Nebraska. Winds may occasionally gust near 20 mph, but will be lighter than what occurred on Friday. By later this evening the surface boundary begins to sag into northern Iowa with spotty light showers possible. These continue off and on Sunday as the cloud front stalls out across northern Iowa. This will result in a rather notable temperature gradient across the area with far northern Iowa in the mid 50s while most of the state reaches the 70s.

Long Term

Issued at 238 PM CDT Fri Oct 23 2026

On Monday the southern stream closed low will transition into a negatively tilted more open wave and slip north into the midwest. Some CAPE is tucked right in the triple point, but the speed of the system keeps the warm sector out of the state until the overnight hours. CAPE will build on the warm sector of the front as it stalls across the middle of the state. Much of next week will have split weather between the north and southern half. The northern half will have more seasonal temperatures in the low 60s whereas 70 degree highs will be common across the south. Rain and some thunderstorms will remain in the picture. This pattern will remain until the east CONUS ridge is broken down by a stronger system from the west.

Aviation

Issued at 1029 PM CDT Fri Oct 23 2026

VFR conditions are expected to prevail through the TAF period. Main impact through the overnight will be LLWS particularly at KFOD/KMCW. Though surface winds near 10 knots will be present, latest analysis is showing 35-40 knot winds at 2kft with ~30 degrees of veering. The LLWS is expected to mix out shortly after sunrise. There is a low (~20%) chance of showers at KFOD/KMCW between 00-06z, and will need to be monitored for PROB30/TEMPO inclusion in future issuances.

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.