Thornburg, IA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Thornburg, IA in one place.
Sunny. High near 93, with temperatures falling to around 91 in the afternoon. Heat index values as high as 101. West wind around 10 mph.
Local Weather Overview
This forecast page for Thornburg, IA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 3:32 PM CDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Thornburg, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 3:32 PM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Thornburg
Monday looks like the warmest upcoming period in Thornburg at 98 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 20 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 3:32 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KDMX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 67. Northeast wind 5 to 10 mph.
Sunny, with a high near 90.
Mostly clear, with a low around 71.
Sunny, with a high near 98.
A chance of showers and thunderstorms after 7pm. Mostly clear, with a low around 72. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7am. Sunny, with a high near 88. Chance of precipitation is 30%.
Mostly clear, with a low around 63.
Sunny, with a high near 82.
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 60.
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Sunny
|
93°F |
10 mph
W
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
67°F |
5 to 10 mph
NE
|
|
Sunday
Jul 19
|
Sunny
|
90°F |
5 mph
E
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
71°F |
5 to 10 mph
SE
|
|
Monday
Jul 20
|
Sunny
|
98°F |
5 to 10 mph
SW
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms
|
72°F |
10 mph
W
|
|
Tuesday
Jul 21
|
Chance Showers And Thunderstorms then Sunny
|
88°F |
10 to 20 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
63°F |
5 to 15 mph
N
|
|
Wednesday
Jul 22
|
Sunny
|
82°F |
5 to 10 mph
N
|
|
Wednesday Night
Jul 22
|
Mostly Clear then Slight Chance Showers And Thunderstorms
|
60°F |
0 to 10 mph
N
|
|
Thursday
Jul 23
|
Slight Chance Showers And Thunderstorms
|
85°F |
0 to 5 mph
W
|
|
Thursday Night
Jul 23
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
61°F |
5 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Thornburg.