Jamestown Weather Forecast 15 Days, Weather in Jamestown Today

Current weather conditions and 15 day weather forecast for Jamestown, Wisconsin, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.

Current weather conditions at Jamestown

11 August 2026 Tuesday
27.8 ° C / 82°F
Sunny
Sunny
Feels Like : 31 ° C / 87.8°F
Humidity : % 76
Pressure : 1012 mb
Wind Speed : 10.1 kmph / 6.3 miles from NNENNE
Visibility : 10 km
Precipitation (rainfall) : 0 mm
Cloud (%) : 0

15 day weather forecast for Jamestown, WI, USA

Weather Forecast for next 15 Days for Jamestown including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.
Here is weather for the next 15 days in Jamestown, Wisconsin state, US. To see the daily forecast, scroll to the table below.
Date Weather forecast Low temperature High temperature Avg. temperature Humidity Chance of rain UV Index Sun Position Moon Position
10 August 2026 Monday Sunny Sunny 19.4 ° C
(66.9°F)
33.1 ° C
(91.6°F)
25.5 ° C
(77.9°F)
% 81 10% 6.4 Sunrise:06:04 AM
Sunset: 08:11 PM
Moonrise:02:42 AM
Moonset: 06:56 PM
Moon Phase
( New Moon )
11 August 2026 Tuesday Sunny Sunny 19.1 ° C
(66.3°F)
28.7 ° C
(83.7°F)
23.7 ° C
(74.7°F)
% 85 59% 7.5 Sunrise:06:05 AM
Sunset: 08:10 PM
Moonrise:04:03 AM
Moonset: 07:37 PM
Moon Phase
( New Moon )
12 August 2026 Wednesday Sunny Sunny 19.2 ° C
(66.6°F)
25.3 ° C
(77.5°F)
21.6 ° C
(70.9°F)
% 90 82% 7.5 Sunrise:06:06 AM
Sunset: 08:08 PM
Moonrise:05:27 AM
Moonset: 08:09 PM
Moon Phase
( New Moon )
13 August 2026 Thursday Sunny Sunny 16 ° C
(60.8°F)
23.9 ° C
(75°F)
19.6 ° C
(67.3°F)
% 89 47% 3.2 Sunrise:06:07 AM
Sunset: 08:07 PM
Moonrise:06:51 AM
Moonset: 08:36 PM
Moon Phase
( New Moon )
14 August 2026 Friday Sunny Sunny 14.3 ° C
(57.7°F)
23.2 ° C
(73.7°F)
18.5 ° C
(65.2°F)
% 82 14% 7.4 Sunrise:06:08 AM
Sunset: 08:05 PM
Moonrise:08:11 AM
Moonset: 08:59 PM
Moon Phase
( Waxing Crescent )
15 August 2026 Saturday Patchy rain nearby Patchy rain nearby 14 ° C
(57.1°F)
24 ° C
(75.2°F)
19.1 ° C
(66.4°F)
% 89 67% 5 Sunrise:06:09 AM
Sunset: 08:04 PM
Moonrise:09:28 AM
Moonset: 09:22 PM
Moon Phase
( Waxing Crescent )
16 August 2026 Sunday Mist Mist 19.7 ° C
(67.5°F)
25.9 ° C
(78.7°F)
22.4 ° C
(72.2°F)
% 91 76% 7 Sunrise:06:10 AM
Sunset: 08:02 PM
Moonrise:10:44 AM
Moonset: 09:45 PM
Moon Phase
( Waxing Crescent )
17 August 2026 Monday Sunny Sunny 14.8 ° C
(58.6°F)
23.7 ° C
(74.7°F)
19.5 ° C
(67°F)
% 83 11% 6 Sunrise:06:11 AM
Sunset: 08:01 PM
Moonrise:11:58 AM
Moonset: 10:10 PM
Moon Phase
( Waxing Crescent )
18 August 2026 Tuesday Sunny Sunny 13.9 ° C
(57.1°F)
26 ° C
(78.8°F)
18.8 ° C
(65.8°F)
% 85 36% 7 Sunrise:06:12 AM
Sunset: 07:59 PM
Moonrise:01:10 PM
Moonset: 10:39 PM
Moon Phase
( First Quarter )
19 August 2026 Wednesday Sunny Sunny 16.3 ° C
(61.4°F)
28 ° C
(82.5°F)
22 ° C
(71.6°F)
% 79 9% 7 Sunrise:06:13 AM
Sunset: 07:58 PM
Moonrise:02:20 PM
Moonset: 11:14 PM
Moon Phase
( First Quarter )
20 August 2026 Thursday Sunny Sunny 21.5 ° C
(70.7°F)
30.2 ° C
(86.3°F)
25.8 ° C
(78.5°F)
% 74 17% 8 Sunrise:06:14 AM
Sunset: 07:56 PM
Moonrise:03:26 PM
Moonset: 11:56 PM
Moon Phase
( First Quarter )
21 August 2026 Friday Patchy rain nearby Patchy rain nearby 18.8 ° C
(65.9°F)
27.1 ° C
(80.8°F)
22.8 ° C
(73°F)
% 90 86% 6 Sunrise:06:15 AM
Sunset: 07:55 PM
Moonrise:04:25 PM
Moonset: Does not set today
Moon Phase
( First Quarter )
22 August 2026 Saturday Fog Fog 19.2 ° C
(66.6°F)
24.4 ° C
(75.9°F)
20.6 ° C
(69°F)
% 94 84% 6 Sunrise:06:16 AM
Sunset: 07:53 PM
Moonrise:05:15 PM
Moonset: 12:46 AM
Moon Phase
( Waxing Gibbous )
23 August 2026 Sunday Sunny Sunny 13.5 ° C
(56.4°F)
23.9 ° C
(75°F)
18.9 ° C
(66°F)
% 84 14% 6 Sunrise:06:17 AM
Sunset: 07:52 PM
Moonrise:05:56 PM
Moonset: 01:43 AM
Moon Phase
( Waxing Gibbous )
Jamestown Weather forecasts are usually fully updated every 4 hours.
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