South Meridian, Idaho

43° 33.05' N | 116° 21.16' W | 2687 feet | Show on map

Monthly Weather Summary

05/17/2026 10:10:00 PM MDT

Station: WeatherFlow
Software: WeeWX v5.3.1
Weewx uptime: 60 Days, 3 Hours, 51 Minutes
Server uptime: 60 Days, 3 Hours, 29 Minutes

This Month

High Temperature 99.5 °F 05/12/2026 06:06:52 PM
Low Temperature 41.4 °F 05/17/2026 07:49:36 AM
High Heat Index 93.4 °F 05/12/2026 05:17:52 PM
Low Wind Chill 39.1 °F 05/17/2026 07:58:00 AM
High Dewpoint 50.8 °F 05/13/2026 05:50:37 AM
Low Dewpoint -0.5 °F 05/10/2026 05:49:52 PM
High Humidity 78% 05/04/2026 07:46:01 AM
Low Humidity 3% 05/10/2026 05:38:52 PM
High Barometer 30.187 inHg 05/14/2026 07:53:05 AM
Low Barometer 29.424 inHg 05/04/2026 07:03:48 PM
Rain Total 0.00 in
High Rain Rate 0.01 in/h 05/04/2026 07:31:18 PM
High Wind Speed 9 mph
271 °
05/04/2026 11:25:55 AM
Average Wind 1 mph
RMS Wind 1 mph
Vector Average Speed 0 mph
Vector Average Direction 277 °
High UV Index 10 05/16/2026 02:00:04 PM
High Evapotranspiration 0.00051 in 05/10/2026 02:34:00 PM
Evapotranspiration Total 3.31 in
High Radiation 1266 W/m² 05/16/2026 02:00:04 PM
High Brightness 152008 lx 05/16/2026 02:00:04 PM
Max Lightning Day 1 05/03/2026 09:53:14 PM
Lightning Total 5

Last May 2025

High Temperature 103.1 °F 05/31/2025 06:02:28 PM
Low Temperature 39.1 °F 05/19/2025 06:44:37 AM
High Heat Index 97.6 °F 05/31/2025 05:57:28 PM
Low Wind Chill 39.1 °F 05/19/2025 06:45:00 AM
High Dewpoint 53.4 °F 05/29/2025 05:30:28 PM
Low Dewpoint 6.4 °F 05/11/2025 03:35:23 PM
High Humidity 94% 05/18/2025 01:54:14 AM
Low Humidity 5% 05/11/2025 03:34:23 PM
High Barometer 30.252 inHg 05/21/2025 07:27:36 AM
Low Barometer 29.352 inHg 05/11/2025 07:43:18 PM
Rain Total 1.14 in
High Rain Rate 0.49 in/h 05/17/2025 06:44:58 PM
High Wind Speed 11 mph
253 °
05/03/2025 07:13:32 PM
Average Wind 1 mph
RMS Wind 1 mph
Vector Average Speed 0 mph
Vector Average Direction 264 °
High UV Index 10 05/18/2025 01:02:29 PM
High Evapotranspiration 0.00055 in 05/31/2025 02:39:00 PM
Evapotranspiration Total 5.46 in
High Radiation 1484 W/m² 05/23/2025 01:02:19 PM
High Brightness 178102 lx 05/23/2025 01:02:19 PM
Max Lightning Day 1 05/03/2025 06:15:18 PM
Lightning Total 11

Last Month (April 2026)

High Temperature 85.0 °F 04/20/2026 06:46:42 PM
Low Temperature 27.6 °F 04/17/2026 07:01:24 AM
High Heat Index 81.7 °F 04/20/2026 06:46:42 PM
Low Wind Chill 27.6 °F 04/17/2026 07:02:00 AM
High Dewpoint 53.0 °F 04/10/2026 10:46:30 PM
Low Dewpoint 13.5 °F 04/24/2026 03:03:48 PM
High Humidity 99% 04/01/2026 12:54:23 AM
Low Humidity 10% 04/20/2026 05:34:44 PM
High Barometer 30.543 inHg 04/04/2026 08:06:46 AM
Low Barometer 29.300 inHg 04/21/2026 05:51:14 PM
Rain Total 4.01 in
High Rain Rate 1.17 in/h 04/15/2026 06:29:25 PM
High Wind Speed 18 mph
230 °
04/02/2026 12:45:05 AM
Average Wind 1 mph
RMS Wind 2 mph
Vector Average Speed 0 mph
Vector Average Direction 258 °
High UV Index 9 04/16/2026 01:30:04 PM
High Evapotranspiration 0.00045 in 04/30/2026 02:37:00 PM
Evapotranspiration Total 3.70 in
High Radiation 1249 W/m² 04/11/2026 02:57:09 PM
High Brightness 149843 lx 04/11/2026 02:57:09 PM
Max Lightning Day 4 04/15/2026 06:24:09 PM
Lightning Total 65

Monthly Statistics and Plots

temperatures rain wind Hi Wind Wind Vector barometer Inside/Outside Humidity UV Index Radiation Lightning battery