Jamestown, WI Weather Forecast
Local 7-day forecast
Patchy Fog then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Jamestown, WI in one place.
Patchy fog before 8am, then a chance of showers and thunderstorms. Some of the storms could be severe. Partly sunny. High near 79, with temperatures falling to around 73 in the afternoon. Southwest wind 8 to 12 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Jamestown, WI 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 14, 2026 1:56 AM CDT.
The active forecast window currently covers Apr 14 to Apr 20, 2026 for Jamestown, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 14 to Apr 20, 2026
- Latest sync
- Apr 14, 2026 1:56 AM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Jamestown
Tuesday looks like the warmest upcoming period in Jamestown at 79 degrees F.
Sunday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Saturday at about 14 to 20 mph W.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 14, 2026 1:56 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- ARX
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely before 5am, then showers and thunderstorms likely. Some of the storms could be severe. Mostly cloudy, with a low around 60. West wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a high near 72. South wind 6 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a low around 55. Southwest wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
A chance of rain showers. Mostly sunny, with a high near 71. West wind around 9 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 7pm. Mostly clear, with a low around 54. South wind around 7 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 75. Southeast wind 7 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Showers and thunderstorms. Mostly cloudy, with a low around 46. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Showers and thunderstorms likely. Partly sunny, with a high near 56. West wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
A slight chance of rain showers before 7pm, then a slight chance of rain and snow showers between 7pm and 1am. Partly cloudy, with a low around 34. West wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Sunny, with a high near 50. Northwest wind 13 to 16 mph, with gusts as high as 26 mph.
Mostly clear, with a low around 33. West wind 7 to 12 mph, with gusts as high as 21 mph.
Sunny, with a high near 59. South wind 7 to 12 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Apr 14
|
Patchy Fog then Chance Showers And Thunderstorms
|
79°F |
8 to 12 mph
SW
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms Likely
|
60°F |
6 to 9 mph
W
|
|
Wednesday
Apr 15
|
Chance Showers And Thunderstorms
|
72°F |
6 to 10 mph
S
|
|
Wednesday Night
Apr 15
|
Showers And Thunderstorms
|
55°F |
9 mph
SW
|
|
Thursday
Apr 16
|
Chance Rain Showers
|
71°F |
9 mph
W
|
|
Thursday Night
Apr 16
|
Chance Rain Showers then Mostly Clear
|
54°F |
7 mph
S
|
|
Friday
Apr 17
|
Mostly Sunny then Chance Showers And Thunderstorms
|
75°F |
7 to 16 mph
SE
|
|
Friday Night
Apr 17
|
Showers And Thunderstorms
|
46°F |
15 mph
SW
|
|
Saturday
Apr 18
|
Showers And Thunderstorms Likely
|
56°F |
14 to 20 mph
W
|
|
Saturday Night
Apr 18
|
Slight Chance Rain And Snow Showers
|
34°F |
13 to 18 mph
W
|
|
Sunday
Apr 19
|
Sunny
|
50°F |
13 to 16 mph
NW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
33°F |
7 to 12 mph
W
|
|
Monday
Apr 20
|
Sunny
|
59°F |
7 to 12 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Jamestown.