| Latest RWIS Atmospheric Data as of Wed Sep 9 12:01 PM 2026 |
| O B S |
Location | Elev. (feet) |
Date | Time | Temp (ºF) |
Dew Point (ºF) |
Rel Hum (%) |
Wind Dir |
Wind Speed (mph) |
Peak Wind (mph) |
Sea-Level Pressure (in. Hg) |
Precip and Intensity |
Precip Rate (in/hr) |
Visibility (mi) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Ashland I-93 | 600 | Wed 09-Sep-2026 | 11:54AM EDT | 63.9 | 52.0 | 65 | SE | 2.0 | 4.7 | 29.58 | None | 0.000 | 1.2 |
| Bow | 351 | Wed 09-Sep-2026 | 11:55AM EDT | 66.6 | 55.6 | 68 | 29.82 | ||||||
| Canterbury I-93 | 585 | Wed 09-Sep-2026 | 11:54AM EDT | 63.7 | 56.5 | 78 | SE | 2.7 | 7.6 | 29.61 | |||
| Derry I-93 | 247 | Wed 09-Sep-2026 | 11:54AM EDT | 66.6 | 57.7 | 73 | ESE | 2.2 | 4.3 | 29.91 | None | 0.000 | 1.2 |
| Epping Rt.101 | 141 | Wed 09-Sep-2026 | 11:54AM EDT | 65.7 | 58.3 | 77 | |||||||
| Hampton Rt 101 | Wed 09-Sep-2026 | 11:55AM EDT | 66.0 | 58.6 | 77 | W | 0.7 | 1.8 | 30.20 | None | 0.000 | 1.2 | |
| LaFayette | 1768 | Wed 09-Sep-2026 | 11:54AM EDT | 57.6 | 51.1 | 79 | WSW | 4.0 | 7.2 | 31.11 | None | 0.000 | 1.2 |
| Lincoln Exit 33 | 916 | Wed 09-Sep-2026 | 11:54AM EDT | 61.5 | 50.5 | 67 | S | 1.3 | 3.4 | None | 0.000 | 1.2 | |
| Littleton I-93 | 869 | Wed 09-Sep-2026 | 11:54AM EDT | 57.9 | 52.7 | 82 | NNE | 1.6 | 3.4 | 29.27 | 1.2 | ||
| Lost River Rt. 112 | 1822 | Wed 09-Sep-2026 | 11:54AM EDT | 58.5 | 51.1 | 76 | E | 2.7 | 8.1 | 28.31 | None | 0.000 | 1.2 |
| Manchester I-293 | 244 | Wed 09-Sep-2026 | 11:54AM EDT | 66.6 | 56.5 | 70 | SW | 3.4 | 5.8 | 29.93 | None | 0.000 | 1.2 |
| Nashua FEE Exit 2 | 287 | Wed 09-Sep-2026 | 11:54AM EDT | ||||||||||
| New Ipswich Rt 124 | 1075 | Wed 09-Sep-2026 | 11:54AM EDT | 65.5 | 57.7 | 76 | E | 1.6 | 5.8 | None | 0.000 | 1.2 | |
| Newington RT 16 | 30 | Wed 09-Sep-2026 | 11:54AM EDT | 66.2 | 55.8 | 69 | NW | 5.6 | 9.6 | 29.52 | None | 0.000 | 11.9 |
| Portsmouth I-95 | Wed 09-Sep-2026 | 11:55AM EDT | 68.4 | 58.5 | 71 | N | 3.1 | 10.7 | 30.14 | None | 0.000 | 1.2 | |
| Roxbury-Sullivan Rt 9 | Wed 09-Sep-2026 | 11:55AM EDT | 66.6 | 60.3 | 81 | N | 0.9 | 2.2 | 29.13 | None | 0.000 | 1.2 | |
| Rt. 4 WB Northwood | Wed 09-Sep-2026 | 11:55AM EDT | 64.9 | 56.3 | 74 | SSE | 3.4 | 6.0 | 29.58 | None | 0.000 | 1.2 | |
| Rt. 16 SB Exit 17 Milton | Wed 09-Sep-2026 | 11:55AM EDT | 65.1 | 55.0 | 70 | SW | 3.8 | 7.8 | 29.75 | None | 0.000 | 1.2 | |
| Rt. 16 SB MM 32 Milton | Wed 09-Sep-2026 | 11:55AM EDT | 63.0 | 53.2 | 71 | SE | 1.3 | 4.3 | 29.63 | None | 0.000 | 1.2 | |
| Rt.16 SB Rochester | Wed 09-Sep-2026 | 11:55AM EDT | 64.8 | 55.6 | 72 | ESE | 2.0 | 7.6 | 29.97 | None | 0.000 | 1.2 | |
| Rt.16 SB Wakefield | Wed 09-Sep-2026 | 11:55AM EDT | 59.0 | 52.3 | 79 | SE | 2.9 | 6.5 | 29.25 | None | 0.000 | 1.2 | |
| Rt. 101 WB Exeter MM 128.4 | Wed 09-Sep-2026 | 11:55AM EDT | 68.0 | 57.7 | 70 | NNW | 1.1 | 4.3 | 30.10 | None | 0.000 | 1.2 | |
| Rt. 101 WB Peterborough | Wed 09-Sep-2026 | 11:55AM EDT | 63.5 | 57.0 | 80 | SSW | 1.3 | 5.4 | 28.73 | None | 0.000 | 1.2 | |
| Rt.106 Loudon | Wed 09-Sep-2026 | 11:55AM EDT | 63.7 | 56.5 | 77 | SSW | 0.4 | 5.6 | 29.62 | None | 0.000 | 1.2 | |
| Rt. 115 Jefferson | Wed 09-Sep-2026 | 11:55AM EDT | 57.0 | 55.0 | 93 | N | 1.3 | 3.8 | 28.62 | ||||
| Rt 16 NB Ossipee | Wed 09-Sep-2026 | 11:55AM EDT | 60.8 | 52.3 | 74 | ESE | 1.3 | 5.1 | 29.77 | None | 0.000 | 1.2 | |
| Salem I-93 | 85 | Wed 09-Sep-2026 | 11:54AM EDT | 66.9 | 56.8 | 70 | N | 1.8 | 4.7 | 30.05 | None | 0.000 | 1.2 |
| Springfield I-89 | 1402 | Wed 09-Sep-2026 | 11:54AM EDT | 59.9 | 52.0 | 75 | S | 5.8 | 12.3 | 29.98 | None | 0.000 | 1.2 |
| Warner I-89 | 413 | Wed 09-Sep-2026 | 11:55AM EDT | 63.3 | 54.7 | 74 | ENE | 3.1 | 8.9 | 29.71 | None | 0.000 | 1.2 |
| Westmoreland Rt. 9 | 1145 | Wed 09-Sep-2026 | 11:54AM EDT | 68.4 | 57.9 | 69 | WSW | 2.9 | 6.9 | 26.64 | None | 0.000 | 1.2 |
| Woodstock I-93 | 680 | Wed 09-Sep-2026 | 11:55AM EDT | 63.7 | 50.9 | 63 | NE | 2.2 | 4.9 | 29.49 | None | 0.000 | 1.2 |
- This page displays the latest atmospheric data received from the NHDOT Environmental Sensor Stations (ESS) located on various NH highways and NHDOT facilities that provide such data.
- Clicking the
icon to the left of a site, will display all of the observations for that site for the current day.
- The Lafayette site is located near the campground in Franconia Notch. The Echo Lake site is located just north of the Franconia Notch.
- At most sites, the highest reported visibility will be 1.1 miles. Exceptions are as follows: 1.2 miles for Echo Lake, LaFayette, Littleton and New Ipswich; Salem and Ashland have newer sensors and can report visibility as high as 7.1 miles; and Dover can report visibilities up to 12.4 miles.
- Precipitation can be listed as "None" for no precipitation, "Recent" if it just recently ended, or "Now" if it just started.
- When precipitation has been detected and an intensity has been determined, precipitation intensities are listed as "LGT" for light or "MOD" for moderate or "HVY" for heavy.
- The entry, "Precip", following a reported intensity usually means rain or drizzle or an indeterminate type of precipitation.
- When snow/ice has been identified by the sensor, the precipitation type following the intensity will be listed as "Snow".
- Missing or not reported data are left as blank entries.
- This page will automatically refresh every 5 minutes.