Decatur, IN Weather

Adams County4:17 PM EDT40.83°N, 84.93°WElevation 801 ft

Current conditions

Sunny
68°
Sunny
Feels like 68°
High 68°·Low 43°
WindCalm
Humidity49%
Dew point48°
Visibility10.0 mi
Cloud cover18%
UV index2 Low
Sunrise8:00 AM
Sunset6:49 PM

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

Forecast

10-day

  • Friday

    Patchy fog between 8am and 9am. Sunny, with a high near 68. East wind 0 to 5 mph.

  • Friday Night

    Partly cloudy, with a low around 43. East wind around 0 mph.

  • Saturday

    Sunny, with a high near 69. Southeast wind around 0 mph.

National Weather Service forecast updated 17 hrs ago.

Hourly

Hourly forecast
  1. Now Sunny 68°
  2. 5 PM Sunny 68°
  3. 6 PM Mostly Clear 66°
  4. 7 PM Mostly Clear 63°
  5. 8 PM Mostly Clear 58°
  6. 9 PM Partly Cloudy 53°
  7. 10 PM Partly Cloudy 51°
  8. 11 PM Partly Cloudy 50°
  9. Sat12 AM Partly Cloudy 49°
  10. 1 AM Partly Cloudy 47°
  11. 2 AM Partly Cloudy 46°
  12. 3 AM Partly Cloudy 46°
  13. 4 AM Partly Cloudy 45°
  14. 5 AM Partly Cloudy 44°
  15. 6 AM Mostly Sunny 43°
  16. 7 AM Mostly Sunny 43°
  17. 8 AM Mostly Sunny 43°
  18. 9 AM Sunny 45°
  19. 10 AM Sunny 51°
  20. 11 AM Sunny 57°
  21. 12 PM Sunny 61°
  22. 1 PM Sunny 64°
  23. 2 PM Sunny 67°
  24. 3 PM Sunny 68°

10-day forecast

Details
  1. TonightOct 22 Clear Clear42°
  2. TodayOct 23 Patchy Fog then Sunny Patchy Fog then Sunny43°68°
  3. SatOct 24 Sunny Sunny44°69°
  4. SunOct 25 Mostly Sunny Mostly Sunny45°72°
  5. MonOct 26 Mostly Sunny Mostly Sunny46°71°
  6. TueOct 27 Partly Sunny Partly Sunny44°65°
  7. WedOct 28 Partly Sunny Partly Sunny46°66°
  8. ThuOct 29 Slight Chance Rain Showers Slight Chance Rain Showers15%67°
  9. FriOct 30 Cloudy Cloudy38°56°
  10. SatOct 31 Cloudy Cloudy0.08 in35°59°

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 Decatur

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Air quality

64
Moderate
Fine particles (PM2.5)

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

Forecast

  • FriModerate
  • SatModerate
  • SunModerate

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

Sun & moon

Sunrise 8:00 AM
Sunset 6:49 PM
Daylight 10 h 48 min (−2 min 32 s tomorrow)
Waxing Gibbous · 93% lit
Moonrise 5:16 PM Moonset 5:08 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low60° / 41°
Record high85° (1963)
Record low25° (1982)
Wettest1.82 in (1957)
Yesterday69° / 39°
Month to date0.82 in (normal 2.12 in)

Fort Wayne Area, records since 1897. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in IWX, issued 3 hrs ago

Key Messages

- Locally dense fog possible again early Saturday morning, especially northeast of Fort Wayne, IN.

- Tranquil fall weather continues with mild temperatures, light winds, and sunshine.

- No rain chances until late next week.

Discussion

Issued at 1247 PM EDT Fri Oct 23 2026

A largely stagnant synoptic pattern called an Omega Block will allow for mild and dry conditions to continue. Upper air observations depict a large upper level ridge continuing to build over the central CONUS this morning; as this feature gradually continues to amplify in the coming days, it will shift eastward over the Great Lakes. Sinking air underneath the upper level ridge will result our prolonged stretch of dry conditions, mild temperatures, and light winds continuing. High temperatures will be in the upper 60s to low 70s and lows in the low to mid 40s each day. With the Omega Block expected to break down by the middle of next week, there are some signals in long range model guidance that a pattern change is ahead by the end of the month into early November. Warmer than normal temperatures are likely to persist, however, a flip to more active, wetter weather is possible by late next week just in time for Halloween.

With the stagnant pattern locked in place, clear skies and light northeasterly flow off of Lake Erie will likely yield some patchy dense advection fog overnight into early Saturday morning. Best chances for fog will likely be northeast of Fort Wayne, IN as this is where the smallest dewpoint depressions and best moisture will be for fog to form. Much like the past few nights, the best timeframe for dense fog will be between 3 AM to 10 AM EDT Saturday, with the lowest visibilities around daybreak. A SPS or Dense Fog Advisory may be needed overnight depending on trends and where any fog develops.

Aviation

Issued at 1247 PM EDT Fri Oct 23 2026

Carbon copy forecast of VFR conditions expected through the period. Fog/stratus will likely remain away from both sites, but trends will be monitored in coming issuances.

Iwx Watches

IN...None. OH...None. MI...None. MARINE...None.

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.