Jefferson, IA Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Jefferson, IA in one place.
Showers and thunderstorms likely before 4am, then a chance of showers and thunderstorms between 4am and 5am. Mostly cloudy, with a low around 53. North northeast wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Jefferson, 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: Apr 15, 2026 4:25 AM CDT.
The active forecast window currently covers Apr 15 to Apr 21, 2026 for Jefferson, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 4:25 AM CDT
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Jefferson
Friday looks like the warmest upcoming period in Jefferson at 79 degrees F.
Saturday Night is the coolest period ahead with temperatures near 30 degrees F.
The strongest winds are forecast for Saturday at about 16 to 21 mph NW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 4:25 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- DMX
- Radar station
- KDMX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms between noon and 4pm, then a chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy. High near 70, with temperatures falling to around 68 in the afternoon. Northeast wind 6 to 9 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of showers and thunderstorms before 8pm. Some of the storms could be severe. Mostly cloudy. Low around 49, with temperatures rising to around 51 overnight. Northwest wind around 7 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunny, with a high near 77. West southwest wind 5 to 12 mph.
Mostly clear, with a low around 58. South wind 9 to 13 mph, with gusts as high as 20 mph.
A slight chance of rain showers between 7am and 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 79. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
A chance of rain showers before 7am, then a slight chance of rain and snow showers. Mostly sunny, with a high near 49. Chance of precipitation is 30%.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 30.
Sunny, with a high near 59.
Mostly clear, with a low around 36.
Sunny, with a high near 71.
Mostly clear, with a low around 48.
Sunny, with a high near 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Apr 15
|
Showers And Thunderstorms Likely
|
53°F |
8 mph
NNE
|
|
Wednesday
Apr 15
|
Chance Showers And Thunderstorms
|
70°F |
6 to 9 mph
NE
|
|
Wednesday Night
Apr 15
|
Slight Chance Showers And Thunderstorms then Mostly Cloudy
|
49°F |
7 mph
NW
|
|
Thursday
Apr 16
|
Sunny
|
77°F |
5 to 12 mph
WSW
|
|
Thursday Night
Apr 16
|
Mostly Clear
|
58°F |
9 to 13 mph
S
|
|
Friday
Apr 17
|
Slight Chance Showers And Thunderstorms
|
79°F |
13 to 20 mph
SSW
|
|
Friday Night
Apr 17
|
Showers And Thunderstorms Likely
|
33°F |
17 mph
NW
|
|
Saturday
Apr 18
|
Slight Chance Rain And Snow Showers
|
49°F |
16 to 21 mph
NW
|
|
Saturday Night
Apr 18
|
Slight Chance Rain Showers then Partly Cloudy
|
30°F |
8 to 18 mph
WNW
|
|
Sunday
Apr 19
|
Sunny
|
59°F |
8 to 12 mph
WNW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
36°F |
9 mph
SSW
|
|
Monday
Apr 20
|
Sunny
|
71°F |
10 to 18 mph
S
|
|
Monday Night
Apr 20
|
Mostly Clear
|
48°F |
12 to 15 mph
SSW
|
|
Tuesday
Apr 21
|
Sunny
|
74°F |
10 to 16 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Jefferson.
Nearby forecast pages are not available for this location yet.
